[Appendix]
[Detailed Budget Estimates by Agency]
[National Aeronautics and Space Administration]
[From the U.S. Government Publishing Office, www.gpo.gov]



   
      
      
         NATIONAL AERONAUTICS AND SPACE ADMINISTRATION                                                                            
            
         
      
      
   
   
      NATIONAL AERONAUTICS AND SPACE ADMINISTRATION                                                                            
         
      
      Federal Funds
         ScienceFor necessary expenses, not otherwise provided for, in the conduct and support of science research and development activities,
            including research, development, operations, support, and services; maintenance and repair, facility planning and design;
            space flight, spacecraft control, and communications activities; program management; personnel and related costs, including
            uniforms or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States Code; travel expenses;
            purchase and hire of passenger motor vehicles; and purchase, lease, charter, maintenance, and operation of mission and administrative
            aircraft, $5,711,800,000, to remain available until September 30, 2019.
      Note.âA full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114â254). The amounts
         included for 2017 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0120â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Science (Direct)
                  5,584
                  5,578
                  5,712
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  273
                  300
                  300
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  27
                  
                  
               
               
                  1033
                  Recoveries of prior year paid obligations
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  301
                  300
                  300
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  5,589
                  5,578
                  5,712
               
               
                  1120
                  Appropriations transferred to other accts CECR [080â0130]
                  â5
                  
                  
               
               
                  1120
                  Appropriations transferred to other acct SSMS [080â0122]
                  â1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  5,583
                  5,578
                  5,712
               
               
                  1930
                  Total budgetary resources available
                  5,884
                  5,878
                  6,012
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  300
                  300
                  300
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  3,253
                  3,622
                  3,849
               
               
                  3010
                  New obligations, unexpired accounts
                  5,584
                  5,578
                  5,712
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  3
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â5,175
                  â5,351
                  â5,693
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â27
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â16
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  3,622
                  3,849
                  3,868
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  3,253
                  3,622
                  3,849
               
               
                  3200
                  Obligated balance, end of year
                  3,622
                  3,849
                  3,868
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  5,583
                  5,578
                  5,712
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  2,190
                  2,345
                  2,401
               
               
                  4011
                  Outlays from discretionary balances
                  2,985
                  3,006
                  3,292
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  5,175
                  5,351
                  5,693
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â1
                  
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4053
                  Recoveries of prior year paid obligations, unexpired accounts
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4060
                  Additional offsets against budget authority only (total)
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  5,583
                  5,578
                  5,712
               
               
                  4080
                  Outlays, net (discretionary)
                  5,174
                  5,351
                  5,693
               
               
                  4180
                  Budget authority, net (total)
                  5,583
                  5,578
                  5,712
               
               
                  4190
                  Outlays, net (total)
                  5,174
                  5,351
                  5,693
               
               
                  
                     
                  
               
            
         
      
      
         The Science appropriation provides for NASA's science mission, which is comprised of the agency's Earth and space science
            programs: Earth Science, Planetary Science, Heliophysics, the James Webb Space Telescope, and Astrophysics. These programs,
            which are managed by the Science Mission Directorate, seek to answer fundamental questions concerning the global Earth system;
            other planets in the solar system and around other stars; the connections among the Sun, Earth, and heliosphere; and the origin
            and evolution of planetary systems, the galaxy, and the universe, including the origin and distribution of life in the universe.
            Program objectives are pursued through robotic flight missions, ground-based scientific research and data analysis, and the
            development of new technologies for future missions.
         
         The Science appropriation provides for all of the research, development, operations, salaries and related expenses, and other
            general and administrative activities required to execute the programs within this account. Costs include labor, travel, procurement,
            and test and fabrication costs. Performance goals associated with these activities are addressed in NASA's detailed budget
            request.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0120â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  236
                  236
                  255
               
               
                  11.3
                  Other than full-time permanent
                  4
                  4
                  4
               
               
                  11.5
                  Other personnel compensation
                  1
                  1
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  241
                  241
                  261
               
               
                  12.1
                  Civilian personnel benefits
                  74
                  74
                  80
               
               
                  21.0
                  Travel and transportation of persons
                  21
                  21
                  23
               
               
                  22.0
                  Transportation of things
                  5
                  5
                  5
               
               
                  23.2
                  Rental payments to others
                  6
                  6
                  6
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  4
                  4
                  4
               
               
                  24.0
                  Printing and reproduction
                  1
                  1
                  1
               
               
                  25.1
                  Advisory and assistance services
                  84
                  84
                  78
               
               
                  25.2
                  Other services from non-Federal sources
                  197
                  197
                  91
               
               
                  25.3
                  Other goods and services from Federal sources
                  223
                  223
                  222
               
               
                  25.4
                  Operation and maintenance of facilities
                  9
                  9
                  10
               
               
                  25.5
                  Research and development contracts
                  3,910
                  3,905
                  4,059
               
               
                  25.7
                  Operation and maintenance of equipment
                  94
                  94
                  99
               
               
                  26.0
                  Supplies and materials
                  24
                  24
                  29
               
               
                  31.0
                  Equipment
                  35
                  35
                  33
               
               
                  41.0
                  Grants, subsidies, and contributions
                  656
                  655
                  711
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  5,584
                  5,578
                  5,712
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0120â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  1,897
                  1,835
                  1,887
               
               
                  
                     
                  
               
            
         
      
         AeronauticsFor necessary expenses, not otherwise provided for, in the conduct and support of aeronautics research and development activities,
            including research, development, operations, support, and services; maintenance and repair, facility planning and design;
            space flight, spacecraft control, and communications activities; program management; personnel and related costs, including
            uniforms or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States Code; travel expenses;
            purchase and hire of passenger motor vehicles; and purchase, lease, charter, maintenance, and operation of mission and administrative
            aircraft, $624,000,000, to remain available until September 30, 2019.
      Note.âA full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114â254). The amounts
         included for 2017 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0126â0â1â402
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Aeronautics (Direct)
                  644
                  639
                  624
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  12
                  12
                  12
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  10
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  22
                  12
                  12
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  640
                  639
                  624
               
               
                  1120
                  Appropriations transferred to other acct [080â0130]
                  â5
                  
                  
               
               
                  1120
                  Appropriations transferred to other acct SSMS [080â0122]
                  â1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  634
                  639
                  624
               
               
                  1930
                  Total budgetary resources available
                  656
                  651
                  636
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  12
                  12
                  12
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  322
                  345
                  382
               
               
                  3010
                  New obligations, unexpired accounts
                  644
                  639
                  624
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  1
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â609
                  â602
                  â633
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â10
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â3
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  345
                  382
                  373
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  322
                  345
                  382
               
               
                  3200
                  Obligated balance, end of year
                  345
                  382
                  373
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  634
                  639
                  624
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  352
                  313
                  305
               
               
                  4011
                  Outlays from discretionary balances
                  257
                  289
                  328
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  609
                  602
                  633
               
               
                  4180
                  Budget authority, net (total)
                  634
                  639
                  624
               
               
                  4190
                  Outlays, net (total)
                  609
                  602
                  633
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for the full costs associated with NASA's Aeronautics Research mission, which aims to expand the
            boundaries of aeronautical knowledge for the benefit of the nation and the broad aeronautics community. The mission is managed
            by NASA's Aeronautics Research Mission Directorate, and consists of the following integrated research programs: Airspace Operations
            and Safety, Advanced Air Vehicles, Integrated Aviation Systems, and Transformative Aeronautics Concepts. Full costs of these
            programs cover all of the research; development; operations; salaries and related expenses; and other general and administrative
            activities required to execute the programs. Costs include labor, travel, procurement, test, and fabrication costs. Performance
            goals associated with these activities are addressed in NASA's detailed budget request.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0126â0â1â402
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  152
                  152
                  171
               
               
                  11.3
                  Other than full-time permanent
                  3
                  3
                  3
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  155
                  155
                  174
               
               
                  12.1
                  Civilian personnel benefits
                  46
                  47
                  53
               
               
                  21.0
                  Travel and transportation of persons
                  7
                  5
                  5
               
               
                  22.0
                  Transportation of things
                  1
                  
                  
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  3
                  5
                  4
               
               
                  25.1
                  Advisory and assistance services
                  11
                  11
                  11
               
               
                  25.2
                  Other services from non-Federal sources
                  30
                  48
                  39
               
               
                  25.3
                  Other goods and services from Federal sources
                  8
                  5
                  6
               
               
                  25.4
                  Operation and maintenance of facilities
                  33
                  26
                  17
               
               
                  25.5
                  Research and development contracts
                  223
                  230
                  215
               
               
                  25.7
                  Operation and maintenance of equipment
                  36
                  37
                  33
               
               
                  26.0
                  Supplies and materials
                  14
                  15
                  11
               
               
                  31.0
                  Equipment
                  31
                  30
                  25
               
               
                  32.0
                  Land and structures
                  2
                  1
                  1
               
               
                  41.0
                  Grants, subsidies, and contributions
                  44
                  24
                  30
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  644
                  639
                  624
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0126â0â1â402
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  1,310
                  1,345
                  1,345
               
               
                  
                     
                  
               
            
         
      
         Space TechnologyFor necessary expenses, not otherwise provided for, in the conduct and support of space technology research and development
            activities, including research, development, operations, support, and services; maintenance and repair, facility planning
            and design; space flight, spacecraft control, and communications activities; program management; personnel and related costs,
            including uniforms or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States Code; travel
            expenses; purchase and hire of passenger motor vehicles; and purchase, lease, charter, maintenance, and operation of mission
            and administrative aircraft, $678,600,000, to remain available until September 30, 2019.
      Note.âA full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114â254). The amounts
         included for 2017 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0131â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Space Technology (Direct)
                  677
                  686
                  679
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  49
                  71
                  71
               
               
                  1011
                  Unobligated balance transfer from other acct SSMS [080â0122]
                  4
                  
                  
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  8
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  61
                  71
                  71
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  687
                  686
                  679
               
               
                  1930
                  Total budgetary resources available
                  748
                  757
                  750
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  71
                  71
                  71
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  378
                  486
                  498
               
               
                  3010
                  New obligations, unexpired accounts
                  677
                  686
                  679
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  1
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â560
                  â674
                  â684
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â8
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  486
                  498
                  493
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  378
                  486
                  498
               
               
                  3200
                  Obligated balance, end of year
                  486
                  498
                  493
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  687
                  686
                  679
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  248
                  240
                  238
               
               
                  4011
                  Outlays from discretionary balances
                  312
                  434
                  446
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  560
                  674
                  684
               
               
                  4180
                  Budget authority, net (total)
                  687
                  686
                  679
               
               
                  4190
                  Outlays, net (total)
                  560
                  674
                  684
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for the full costs associated with program activities under the NASA Space Technology Mission
            Directorate which conducts research and development in space technologies serving multiple customers within NASA, private
            industry, academia, and other government agencies. The full costs provide for all of the research; development; operations;
            salaries and related expenses; and other general and administrative activities required to execute the programs within this
            account. Costs include labor, travel, procurement, and those associated with fabrication, tests and flight demonstrations.
            The Space Technology appropriation also supports the operations of the NASA Office of the Chief Technologist.
         
         The programs within Space Technology enable new missions by drawing on talent from the NASA workforce, academia, small businesses
            and the broader space enterprise to deliver innovative solutions that dramatically improve technological capabilities for
            NASA and the Nation. The appropriation funds several programs, including Agency Technology and Innovation, Small Business
            Innovative Research (SBIR), Small Business Technology Transfer (STTR), and Space Technology Research and Development. Performance
            goals associated with these activities are addressed in NASA's detailed budget request.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0131â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  83
                  86
                  95
               
               
                  11.3
                  Other than full-time permanent
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  84
                  87
                  96
               
               
                  12.1
                  Civilian personnel benefits
                  27
                  27
                  30
               
               
                  21.0
                  Travel and transportation of persons
                  4
                  4
                  5
               
               
                  22.0
                  Transportation of things
                  1
                  1
                  4
               
               
                  25.1
                  Advisory and assistance services
                  27
                  27
                  30
               
               
                  25.2
                  Other services from non-Federal sources
                  30
                  30
                  27
               
               
                  25.3
                  Other goods and services from Federal sources
                  5
                  6
                  9
               
               
                  25.4
                  Operation and maintenance of facilities
                  2
                  3
                  3
               
               
                  25.5
                  Research and development contracts
                  432
                  435
                  404
               
               
                  25.7
                  Operation and maintenance of equipment
                  18
                  18
                  14
               
               
                  26.0
                  Supplies and materials
                  5
                  5
                  7
               
               
                  31.0
                  Equipment
                  4
                  4
                  9
               
               
                  41.0
                  Grants, subsidies, and contributions
                  38
                  39
                  41
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  677
                  686
                  679
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0131â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  705
                  722
                  725
               
               
                  
                     
                  
               
            
         
      
         explorationFor necessary expenses, not otherwise provided for, in the conduct and support of exploration research and development activities,
            including research, development, operations, support, and services; maintenance and repair, facility planning and design;
            space flight, spacecraft control, and communications activities; program management; personnel and related costs, including
            uniforms or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States Code; travel expenses;
            purchase and hire of passenger motor vehicles; and purchase, lease, charter, maintenance, and operation of mission and administrative
            aircraft, $3,934,097,000, to remain available until September 30, 2019.
      Note.âA full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114â254). The amounts
         included for 2017 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0124â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Exploration (Direct)
                  4,046
                  4,022
                  3,934
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  58
                  43
                  43
               
               
                  1010
                  Unobligated balance transfer to other accts CECR [080â0130]
                  â19
                  
                  
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  36
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  75
                  43
                  43
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  4,030
                  4,022
                  3,934
               
               
                  1120
                  Appropriations transferred to other acct CECR [080â0130]
                  â18
                  
                  
               
               
                  1120
                  Appropriations transferred to other acct SSMS [080â0122]
                  â2
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct SOMD [080â0115]
                  4
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  4,014
                  4,022
                  3,934
               
               
                  1930
                  Total budgetary resources available
                  4,089
                  4,065
                  3,977
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  43
                  43
                  43
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1,501
                  1,270
                  1,457
               
               
                  3010
                  New obligations, unexpired accounts
                  4,046
                  4,022
                  3,934
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  2
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â4,237
                  â3,835
                  â3,934
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â36
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â6
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  1,270
                  1,457
                  1,457
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1,501
                  1,270
                  1,457
               
               
                  3200
                  Obligated balance, end of year
                  1,270
                  1,457
                  1,457
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  4,014
                  4,022
                  3,934
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  2,757
                  2,735
                  2,557
               
               
                  4011
                  Outlays from discretionary balances
                  1,480
                  1,100
                  1,377
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  4,237
                  3,835
                  3,934
               
               
                  4180
                  Budget authority, net (total)
                  4,014
                  4,022
                  3,934
               
               
                  4190
                  Outlays, net (total)
                  4,237
                  3,835
                  3,934
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for costs associated with the development of systems and capabilities required for human exploration
            of space. The systems and capabilities include launch and crew vehicles for missions beyond low Earth orbit, technologies
            and countermeasures to keep astronauts healthy and functional during deep space missions, and technologies to increase capabilities,
            and reduce the launch mass and cost of deep space missions. The full costs provide for the research; development; operations;
            salaries and related expenses; and other general and administrative activities required to execute the programs within this
            account. Costs include labor, travel, procurement, test and fabrication costs. Performance goals associated with these activities
            are addressed in NASA's detailed budget request.
         
         NASA's human space exploration programs include Space Launch System, Orion, Exploration Ground Systems, Advanced Exploration
            Systems, and Human Research. The programs are managed by NASA's Human Exploration and Operations Mission Directorate, which
            also manages programs in the Space Operations account.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0124â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  323
                  323
                  337
               
               
                  11.3
                  Other than full-time permanent
                  2
                  2
                  2
               
               
                  11.5
                  Other personnel compensation
                  1
                  1
                  1
               
               
                  11.8
                  Special personal services payments
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  327
                  327
                  341
               
               
                  12.1
                  Civilian personnel benefits
                  104
                  104
                  109
               
               
                  13.0
                  Benefits for former personnel
                  1
                  1
                  
               
               
                  21.0
                  Travel and transportation of persons
                  14
                  14
                  13
               
               
                  22.0
                  Transportation of things
                  1
                  1
                  25
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  10
                  10
                  6
               
               
                  25.1
                  Advisory and assistance services
                  397
                  397
                  341
               
               
                  25.2
                  Other services from non-Federal sources
                  40
                  40
                  34
               
               
                  25.3
                  Other goods and services from Federal sources
                  40
                  40
                  34
               
               
                  25.4
                  Operation and maintenance of facilities
                  102
                  102
                  95
               
               
                  25.5
                  Research and development contracts
                  2,703
                  2,679
                  2,663
               
               
                  25.7
                  Operation and maintenance of equipment
                  149
                  149
                  134
               
               
                  26.0
                  Supplies and materials
                  19
                  19
                  19
               
               
                  31.0
                  Equipment
                  40
                  40
                  45
               
               
                  32.0
                  Land and structures
                  38
                  38
                  19
               
               
                  41.0
                  Grants, subsidies, and contributions
                  61
                  61
                  56
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  4,046
                  4,022
                  3,934
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0124â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  2,758
                  2,713
                  2,651
               
               
                  
                     
                  
               
            
         
      
         EducationFor necessary expenses, not otherwise provided for, in the conduct and support of aerospace and aeronautical education research
            and development activities, including research, development, operations, support, and services; program management; personnel
            and related costs, including uniforms or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States
            Code; travel expenses; purchase and hire of passenger motor vehicles;  purchase, lease, charter, maintenance, and operation of mission and administrative aircraft; and to carry out closure of the NASA Office of Education, including for making payments for awards granted prior to September
               30, 2017,  $37,300,000, to remain available until September 30, 2019.
      Note.âA full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114â254). The amounts
         included for 2017 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0128â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Education (Direct)
                  137
                  115
                  37
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  33
                  12
                  12
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  34
                  12
                  12
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  115
                  115
                  37
               
               
                  1930
                  Total budgetary resources available
                  149
                  127
                  49
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  12
                  12
                  12
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  159
                  179
                  129
               
               
                  3010
                  New obligations, unexpired accounts
                  137
                  115
                  37
               
               
                  3020
                  Outlays (gross)
                  â114
                  â165
                  â100
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â1
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  179
                  129
                  66
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  159
                  179
                  129
               
               
                  3200
                  Obligated balance, end of year
                  179
                  129
                  66
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  115
                  115
                  37
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  14
                  24
                  8
               
               
                  4011
                  Outlays from discretionary balances
                  100
                  141
                  92
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  114
                  165
                  100
               
               
                  4180
                  Budget authority, net (total)
                  115
                  115
                  37
               
               
                  4190
                  Outlays, net (total)
                  114
                  165
                  100
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for the full costs associated with NASA's education activities within the Office of Education,
            which include labor, travel, procurement, test and fabrication costs. The Budget proposes the termination of the Office of
            Education and its portfolio of programs and projects. The Office of Education has experienced significant challenges in implementing
            a focused NASA-wide education strategy. Additionally, the Office of Education lacks sufficient outcome measures to assess
            the effectiveness of its programs.
         
         The Budget supports the orderly closeout and/or transition of these activities needed to comply with federal laws and regulations
            regarding contracts, grants/cooperative agreements, civil servants, records management, and administrative infrastructure.
         
         While the Budget no longer supports the formal Office of Education programs, NASA will continue to use every opportunity to
            support the next generation through engagement in our missions and the many ways that our work excites and encourages discovery
            by learners and educators.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0128â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  5
                  5
                  4
               
               
                  11.8
                  Special personal services payments
                  1
                  1
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  6
                  6
                  4
               
               
                  12.1
                  Civilian personnel benefits
                  2
                  2
                  1
               
               
                  25.1
                  Advisory and assistance services
                  7
                  5
                  2
               
               
                  25.2
                  Other services from non-Federal sources
                  10
                  9
                  3
               
               
                  25.5
                  Research and development contracts
                  3
                  2
                  1
               
               
                  25.7
                  Operation and maintenance of equipment
                  6
                  4
                  1
               
               
                  41.0
                  Grants, subsidies, and contributions
                  103
                  87
                  25
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  137
                  115
                  37
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0128â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  51
                  60
                  30
               
               
                  
                     
                  
               
            
         
      
         Safety, security and mission servicesFor necessary expenses, not otherwise provided for, in the conduct and support of science, aeronautics, space technology,
            exploration, space operations and education research and development activities, including research, development, operations,
            support, and services; maintenance and repair, facility planning and design; space flight, spacecraft control, and communications
            activities; program management; personnel and related costs, including uniforms or allowances therefor, as authorized by sections
            5901 and 5902 of title 5, United States Code; travel expenses; purchase and hire of passenger motor vehicles; not to exceed
            $63,000 for official reception and representation expenses; and purchase, lease, charter, maintenance, and operation of mission
            and administrative aircraft, $2,830,200,000, to remain available until September 30, 2019.
      Note.âA full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114â254). The amounts
         included for 2017 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0122â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Cross Agency Support (Direct)
                  2,800
                  2,764
                  2,830
               
               
                  0801
                  Cross Agency Support (Reimbursable)
                  2,525
                  2,726
                  2,548
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts
                  5,325
                  5,490
                  5,378
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  247
                  304
                  304
               
               
                  1010
                  Unobligated balance transfer to other accts Space Technology [080â0131]
                  â4
                  
                  
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  28
                  
                  
               
               
                  1033
                  Recoveries of prior year paid obligations
                  2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  273
                  304
                  304
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  2,769
                  2,764
                  2,830
               
               
                  1121
                  Appropriations transferred from other acct Science [080â0120]
                  1
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct Aeronautics [080â0126]
                  1
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct Exploration [080â0124]
                  2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  2,773
                  2,764
                  2,830
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  2,197
                  2,726
                  2,548
               
               
                  1701
                  Change in uncollected payments, Federal sources
                  386
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1750
                  Spending auth from offsetting collections, disc (total)
                  2,583
                  2,726
                  2,548
               
               
                  1900
                  Budget authority (total)
                  5,356
                  5,490
                  5,378
               
               
                  1930
                  Total budgetary resources available
                  5,629
                  5,794
                  5,682
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  304
                  304
                  304
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1,859
                  2,227
                  1,909
               
               
                  3010
                  New obligations, unexpired accounts
                  5,325
                  5,490
                  5,378
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  10
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â4,922
                  â5,808
                  â5,528
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â28
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â17
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  2,227
                  1,909
                  1,759
               
               
                  
                  Uncollected payments:
               
               
                  3060
                  Uncollected pymts, Fed sources, brought forward, Oct 1
                  â1,105
                  â1,443
                  â1,443
               
               
                  3070
                  Change in uncollected pymts, Fed sources, unexpired
                  â386
                  
                  
               
               
                  3071
                  Change in uncollected pymts, Fed sources, expired
                  48
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3090
                  Uncollected pymts, Fed sources, end of year
                  â1,443
                  â1,443
                  â1,443
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  754
                  784
                  466
               
               
                  3200
                  Obligated balance, end of year
                  784
                  466
                  316
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  5,356
                  5,490
                  5,378
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  3,089
                  4,392
                  4,302
               
               
                  4011
                  Outlays from discretionary balances
                  1,833
                  1,416
                  1,226
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  4,922
                  5,808
                  5,528
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4030
                  Federal sources
                  â2,024
                  â2,475
                  â2,295
               
               
                  4033
                  Non-Federal sources
                  â226
                  â251
                  â253
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4040
                  Offsets against gross budget authority  and outlays (total)
                  â2,250
                  â2,726
                  â2,548
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4050
                  Change in uncollected pymts, Fed sources, unexpired
                  â386
                  
                  
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  51
                  
                  
               
               
                  4053
                  Recoveries of prior year paid obligations, unexpired accounts
                  2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4060
                  Additional offsets against budget authority only (total)
                  â333
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  2,773
                  2,764
                  2,830
               
               
                  4080
                  Outlays, net (discretionary)
                  2,672
                  3,082
                  2,980
               
               
                  4180
                  Budget authority, net (total)
                  2,773
                  2,764
                  2,830
               
               
                  4190
                  Outlays, net (total)
                  2,672
                  3,082
                  2,980
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for NASA's supporting functions associated with the science, aeronautics, space technology, education,
            space operations, exploration, and construction and environmental compliance and restoration activities of the agency. This
            account provides for the operations and maintenance; salaries and related expenses; and other general and administrative activities
            supporting the programs within the Agency's six mission accounts.
         
         Safety, Security, and Mission Services provides a strategic focus for managing agency mission support functions and some of
            NASA's unique research facilities.
         
         Center Management and Operations includes the basic costs to manage and operate each of the nine NASA field centers and to
            maintain the technical capabilities required to support the Agency's Mission. This Budget is not directly identified or aligned
            to a specific program or project requirement, but is necessary for efficient and effective administration and operation of
            the NASA Centers.
         
         Agency Management and Operations provides for the management and oversight of Agency programs, the performance of Agency-wide
            activities and functions, and the maintenance of unique research capabilities and facilities. Responsibilities include the
            determination of programs and projects; establishment of management policies, procedures, and performance criteria; evaluation
            of progress; and the coordination and integration of all phases of the Agency's mission.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0122â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  879
                  866
                  994
               
               
                  11.3
                  Other than full-time permanent
                  18
                  18
                  20
               
               
                  11.5
                  Other personnel compensation
                  26
                  26
                  29
               
               
                  11.8
                  Special personal services payments
                  
                  
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  923
                  910
                  1,044
               
               
                  12.1
                  Civilian personnel benefits
                  277
                  273
                  314
               
               
                  13.0
                  Benefits for former personnel
                  1
                  1
                  1
               
               
                  21.0
                  Travel and transportation of persons
                  22
                  22
                  20
               
               
                  22.0
                  Transportation of things
                  2
                  2
                  3
               
               
                  23.1
                  Rental payments to GSA
                  7
                  7
                  7
               
               
                  23.2
                  Rental payments to others
                  24
                  24
                  20
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  59
                  58
                  58
               
               
                  24.0
                  Printing and reproduction
                  3
                  3
                  3
               
               
                  25.1
                  Advisory and assistance services
                  221
                  218
                  203
               
               
                  25.2
                  Other services from non-Federal sources
                  258
                  255
                  236
               
               
                  25.3
                  Other goods and services from Federal sources
                  50
                  49
                  45
               
               
                  25.4
                  Operation and maintenance of facilities
                  252
                  249
                  232
               
               
                  25.5
                  Research and development contracts
                  181
                  179
                  155
               
               
                  25.6
                  Medical care
                  8
                  8
                  7
               
               
                  25.7
                  Operation and maintenance of equipment
                  416
                  411
                  394
               
               
                  26.0
                  Supplies and materials
                  14
                  14
                  14
               
               
                  31.0
                  Equipment
                  41
                  40
                  37
               
               
                  32.0
                  Land and structures
                  25
                  25
                  22
               
               
                  41.0
                  Grants, subsidies, and contributions
                  16
                  16
                  15
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.0
                  Direct obligations
                  2,800
                  2,764
                  2,830
               
               
                  99.0
                  Reimbursable obligations
                  2,525
                  2,726
                  2,548
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  5,325
                  5,490
                  5,378
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0122â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  7,437
                  7,688
                  7,705
               
               
                  2001
                  Reimbursable civilian full-time equivalent employment
                  342
                  317
                  263
               
               
                  
                     
                  
               
            
         
      
         construction and environmental compliance and restorationFor necessary expenses for construction of facilities including repair, rehabilitation, revitalization, and modification of
            facilities, construction of new facilities and additions to existing facilities, facility planning and design, and restoration,
            and acquisition or condemnation of real property, as authorized by law, and environmental compliance and restoration, $496,100,000, to remain available until September 30, 2023: Provided, That proceeds from leases deposited into this account shall be available for a period of 5 years  to the extent and in amounts as provided in annual appropriations Acts: Provided further, That such proceeds referred to in the preceding proviso shall be available for obligation for fiscal year 2018 in an amount not to exceed $9,470,300: Provided further, That each annual budget request shall include an annual estimate of gross receipts and collections and proposed use of all
            funds collected pursuant to section 20145 of title 51, United States Code.
      Note.âA full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114â254). The amounts
         included for 2017 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0130â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Construction and Environmental Compliance and Restoration (Direct)
                  508
                  463
                  496
               
               
                  0801
                  Construction and Environmental Compliance and Restoration (Reimbursable)
                  5
                  9
                  9
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts
                  513
                  472
                  505
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  162
                  135
                  135
               
               
                  1011
                  Unobligated balance transfer from other acct Exploration [080â0124]
                  19
                  
                  
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  33
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  214
                  135
                  135
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  389
                  463
                  496
               
               
                  1121
                  Appropriations transferred from other acct Space Operations [080â0115]
                  11
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct Aeronautics [080â0126]
                  5
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct Science [080â0120]
                  5
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct Exploration [080â0124]
                  18
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  428
                  463
                  496
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  6
                  9
                  9
               
               
                  1900
                  Budget authority (total)
                  434
                  472
                  505
               
               
                  1930
                  Total budgetary resources available
                  648
                  607
                  640
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  135
                  135
                  135
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  734
                  719
                  728
               
               
                  3010
                  New obligations, unexpired accounts
                  513
                  472
                  505
               
               
                  3020
                  Outlays (gross)
                  â495
                  â463
                  â583
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â33
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  719
                  728
                  650
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  734
                  719
                  728
               
               
                  3200
                  Obligated balance, end of year
                  719
                  728
                  650
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  434
                  472
                  505
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  20
                  98
                  76
               
               
                  4011
                  Outlays from discretionary balances
                  475
                  365
                  507
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  495
                  463
                  583
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â6
                  â9
                  â9
               
               
                  4180
                  Budget authority, net (total)
                  428
                  463
                  496
               
               
                  4190
                  Outlays, net (total)
                  489
                  454
                  574
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for NASA's construction and environmental compliance and restoration activities, and allows the
            agency to use the net proceeds from Enhanced Use Leases for maintenance, capital revitalization, and improvement of real property
            assets and related personal property at NASA Centers under the authority of section 20145 of the National Aeronautics and
            Space Act (51 U.S.C. 20145). The costs provide for all of the research; development; operations; design, repair, rehabilitation,
            modification of facilities, and construction of new facilities; and other general and administrative activities required to
            execute the programs within this account.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0130â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  1
                  1
                  1
               
               
                  25.1
                  Advisory and assistance services
                  34
                  31
                  35
               
               
                  25.2
                  Other services from non-Federal sources
                  33
                  30
                  32
               
               
                  25.3
                  Other goods and services from Federal sources
                  29
                  26
                  51
               
               
                  25.4
                  Operation and maintenance of facilities
                  102
                  93
                  84
               
               
                  25.5
                  Research and development contracts
                  32
                  29
                  20
               
               
                  25.7
                  Operation and maintenance of equipment
                  10
                  9
                  7
               
               
                  26.0
                  Supplies and materials
                  
                  
                  1
               
               
                  31.0
                  Equipment
                  
                  
                  1
               
               
                  32.0
                  Land and structures
                  267
                  244
                  264
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.0
                  Direct obligations
                  508
                  463
                  496
               
               
                  99.0
                  Reimbursable obligations
                  5
                  9
                  9
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  513
                  472
                  505
               
               
                  
                     
                  
               
            
         
      
         Space operationsFor necessary expenses, not otherwise provided for, in the conduct and support of space operations research and development
            activities, including research, development, operations, support and services; space flight, spacecraft control and communications
            activities, including operations, production, and services; maintenance and repair, facility planning and design; program
            management; personnel and related costs, including uniforms or allowances therefor, as authorized by sections 5901 and 5902
            of title 5, United States Code; travel expenses; purchase and hire of passenger motor vehicles; and purchase, lease, charter,
            maintenance and operation of mission and administrative aircraft, $4,740,803,000, to remain available until September 30, 2019.
      Note.âA full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114â254). The amounts
         included for 2017 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0115â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Space Operations (Direct)
                  5,104
                  5,019
                  4,741
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  169
                  103
                  103
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  24
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  193
                  103
                  103
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  5,029
                  5,019
                  4,741
               
               
                  1120
                  Appropriations transferred to other accts CECR [080â0130]
                  â11
                  
                  
               
               
                  1120
                  Appropriations transferred to other acct Exploration [080â0124]
                  â4
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  5,014
                  5,019
                  4,741
               
               
                  1900
                  Budget authority (total)
                  5,014
                  5,019
                  4,741
               
               
                  1930
                  Total budgetary resources available
                  5,207
                  5,122
                  4,844
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  103
                  103
                  103
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1,589
                  1,716
                  1,790
               
               
                  3010
                  New obligations, unexpired accounts
                  5,104
                  5,019
                  4,741
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  18
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â4,951
                  â4,945
                  â4,814
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â24
                  
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â20
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  1,716
                  1,790
                  1,717
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1,589
                  1,716
                  1,790
               
               
                  3200
                  Obligated balance, end of year
                  1,716
                  1,790
                  1,717
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  5,014
                  5,019
                  4,741
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  3,313
                  3,413
                  3,224
               
               
                  4011
                  Outlays from discretionary balances
                  1,637
                  1,532
                  1,590
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  4,950
                  4,945
                  4,814
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4040
                  Offsets against gross budget authority  and outlays (total)
                  â1
                  
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  5,014
                  5,019
                  4,741
               
               
                  4080
                  Outlays, net (discretionary)
                  4,949
                  4,945
                  4,814
               
               
                  
                  Mandatory:
               
               
                  
                  Outlays, gross:
               
               
                  4101
                  Outlays from mandatory balances
                  1
                  
                  
               
               
                  4180
                  Budget authority, net (total)
                  5,014
                  5,019
                  4,741
               
               
                  4190
                  Outlays, net (total)
                  4,950
                  4,945
                  4,814
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for the full costs associated with the space operations activities of the agency. The full costs
            include all labor, travel, procurement, test, and fabrication costs to execute these programs, which provide for all of the
            research; development; operations; salaries and related expenses; and other general and administrative activities supporting
            the programs within this account. Major themes within the Space Operations account include the International Space Station,
            Space Transportation, and Space and Flight Support. Performance goals associated with these activities are addressed in NASA's
            detailed budget request.
         
         The International Space Station is a complex of research laboratories in low Earth orbit in which America and its international
            partners, including Russia, Canada, Europe, and Japan, conduct unique scientific and technological investigations in a microgravity
            environment. The objective of the International Space Station is to support human space exploration and conduct science experiments
            and technology development unique to the on-orbit attributes of the facility.
         
         Space and Flight Support is comprised of multiple capabilities that provide on-going customer support for a wide range of
            services. The programs include Space Communications and Navigation, Human Space Flight Operations, Launch Services, and Rocket
            Propulsion Testing. They are provided to a wide range of customers including NASA, other U.S. Federal agencies, foreign governments,
            and commercial customers. The programs are managed by NASA's Human Exploration and Operations Mission Directorate, which also
            manages programs in the Exploration account.
         
         The Space Transportation theme's objective is to transport U.S. astronauts and cargo safely back and forth to America's orbiting
            national laboratory, ISS. This theme includes the Commercial Crew Program and ISS Crew and Cargo. Maintaining the ISS requires
            a fleet of vehicles and launch locations to transport astronauts, science experiments, critical supplies, maintenance hardware,
            and propellant to ISS, and to dispose of waste generated on ISS. The Commercial Crew Program partners with the U.S. private
            sector to develop and operate safe, reliable, and affordable crew transportation to low-Earth orbit. Within ISS Crew and Cargo
            Transportation, NASA currently purchases cargo transportation to the ISS under the CRS contracts with Orbital ATK and SpaceX
            and crew transportation from the Russian Space Agency, Roscosmos.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0115â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  272
                  308
                  308
               
               
                  11.3
                  Other than full-time permanent
                  2
                  2
                  2
               
               
                  11.5
                  Other personnel compensation
                  1
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  275
                  312
                  312
               
               
                  12.1
                  Civilian personnel benefits
                  87
                  87
                  98
               
               
                  21.0
                  Travel and transportation of persons
                  13
                  13
                  12
               
               
                  22.0
                  Transportation of things
                  1,529
                  1,529
                  1,487
               
               
                  23.2
                  Rental payments to others
                  4
                  4
                  3
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  4
                  4
                  4
               
               
                  24.0
                  Printing and reproduction
                  1
                  1
                  
               
               
                  25.1
                  Advisory and assistance services
                  88
                  88
                  79
               
               
                  25.2
                  Other services from non-Federal sources
                  125
                  125
                  128
               
               
                  25.3
                  Other goods and services from Federal sources
                  26
                  26
                  26
               
               
                  25.4
                  Operation and maintenance of facilities
                  36
                  36
                  37
               
               
                  25.5
                  Research and development contracts
                  2,589
                  2,467
                  2,227
               
               
                  25.7
                  Operation and maintenance of equipment
                  256
                  256
                  260
               
               
                  26.0
                  Supplies and materials
                  22
                  22
                  19
               
               
                  31.0
                  Equipment
                  21
                  21
                  17
               
               
                  32.0
                  Land and structures
                  3
                  3
                  4
               
               
                  41.0
                  Grants, subsidies, and contributions
                  25
                  25
                  28
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  5,104
                  5,019
                  4,741
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0115â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  2,240
                  2,332
                  2,349
               
               
                  
                     
                  
               
            
         
      
         Office of inspector generalFor necessary expenses of the Office of Inspector General in carrying out the Inspector General Act of 1978, $39,300,000, to  remain available until September 30, 2019.
      Note.âA full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
         budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114â254). The amounts
         included for 2017 reflect the annualized level provided by the continuing resolution.
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0109â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Office of Inspector General (Direct)
                  37
                  37
                  39
               
               
                  0801
                  Office of Inspector General (Reimbursable)
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts
                  38
                  38
                  40
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  37
                  37
                  39
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  1
                  1
                  1
               
               
                  1900
                  Budget authority (total)
                  38
                  38
                  40
               
               
                  1930
                  Total budgetary resources available
                  38
                  38
                  40
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  4
                  4
                  
               
               
                  3010
                  New obligations, unexpired accounts
                  38
                  38
                  40
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  1
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â38
                  â42
                  â38
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  4
                  
                  2
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  4
                  4
                  
               
               
                  3200
                  Obligated balance, end of year
                  4
                  
                  2
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  38
                  38
                  40
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  34
                  38
                  36
               
               
                  4011
                  Outlays from discretionary balances
                  4
                  4
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  38
                  42
                  38
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4030
                  Federal sources
                  â1
                  â1
                  â1
               
               
                  4180
                  Budget authority, net (total)
                  37
                  37
                  39
               
               
                  4190
                  Outlays, net (total)
                  37
                  41
                  37
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for the full costs associated with the operations of the NASA Office of Inspector General. The
            mission of the Office of Inspector General is to conduct audits and investigations of agency activities to prevent and detect
            fraud, waste, abuse, and mismanagement. The Inspector General keeps the Administrator and the Congress informed of problems
            and deficiencies in agency programs and operations.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0109â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  11.1
                  Personnel compensation: Full-time permanent
                  23
                  23
                  23
               
               
                  12.1
                  Civilian personnel benefits
                  8
                  8
                  10
               
               
                  21.0
                  Travel and transportation of persons
                  1
                  1
                  1
               
               
                  25.2
                  Other services from non-Federal sources
                  3
                  3
                  3
               
               
                  25.3
                  Other goods and services from Federal sources
                  2
                  2
                  1
               
               
                  31.0
                  Equipment
                  
                  
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.0
                  Direct obligations
                  37
                  37
                  39
               
               
                  99.0
                  Reimbursable obligations
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  38
                  38
                  40
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0109â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  185
                  207
                  207
               
               
                  2001
                  Reimbursable civilian full-time equivalent employment
                  6
                  6
                  6
               
               
                  
                     
                  
               
            
         
      
         Science, Aeronautics, and Exploration                                                                                    
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0114â0â1â999
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  1
                  1
               
               
                  1930
                  Total budgetary resources available
                  1
                  1
                  1
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â1
                  
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1
                  
                  
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  
                  Outlays, gross:
               
               
                  4011
                  Outlays from discretionary balances
                  1
                  
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  1
                  
                  
               
               
                  
                     
                  
               
            
         
      
      
         NASA's Science, Aeronautics and Exploration account formerly included Science, Aeronautics Research, Exploration Systems and
            Cross Agency Support Programs. Beginning in 2009, Science, Aeronautics, Exploration, Education and Cross Agency Support were
            split into five separate appropriation accounts. The Science, Aeronautics, and Exploration account shows spending from balances
            prior to the account restructuring.
         
      
         Human Space Flight                                                                                                       
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0111â0â1â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  1
                  1
               
               
                  1930
                  Total budgetary resources available
                  1
                  1
                  1
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  7
                  5
                  
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  5
                  
                  
               
               
                  3020
                  Outlays (gross)
                  
                  â5
                  
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â7
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  5
                  
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  7
                  5
                  
               
               
                  3200
                  Obligated balance, end of year
                  5
                  
                  
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  
                  Outlays, gross:
               
               
                  4011
                  Outlays from discretionary balances
                  
                  5
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  
                  5
                  
               
               
                  
                     
                  
               
            
         
      
      
         NASA's Human Space Flight account formerly included the International Space Station; Space Shuttle Payload and Expendable
            Launch Vehicle Support; Human Exploration and Development of Space Investments and Support; Space Communications and Data
            Systems; and Safety, Mission Assurance and Engineering. Beginning in 2004, Safety, Mission Assurance, and Engineering was
            allocated as an indirect charge to all programs and all other programs (along with the Crosscutting Technologies portion of
            the Aerospace Technology Enterprise) were rolled into the Space Flight Capabilities account. In 2005, the Space Flight Capabilities
            account was renamed the Exploration Capabilities account. In 2009, the Exploration Capabilities account was renamed Space
            Operations. The Human Space Flight account shows spending from balances prior to the account restructuring.
         
      
         Science, Aeronautics and Technology                                                                                      
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0110â0â1â999
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  1
                  1
               
               
                  1930
                  Total budgetary resources available
                  1
                  1
                  1
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  1
                  1
                  1
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1
                  1
                  1
               
               
                  3200
                  Obligated balance, end of year
                  1
                  1
                  1
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  
                  
                  
               
               
                  
                     
                  
               
            
         
      
      
         NASA's Science, Aeronautics and Technology account formerly included Space Science, Biological and Physical Research, Earth
            Science, Aerospace Technology, and Education. Beginning in 2004, Space Science, Biological and Physical Research, Earth Science,
            the Aeronautics portion of Aerospace Technology, and Education were rolled into the Science, Aeronautics and Exploration account.
            These programs are now funded by the Aeronautics, Education, Science, and Exploration accounts. The Science, Aeronautics,
            and Technology account shows spending from balances prior to the account restructuring.
         
      
         Mission Support                                                                                                          
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0112â0â1â999
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  1
                  1
               
               
                  1930
                  Total budgetary resources available
                  1
                  1
                  1
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  1
                  1
                  1
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  
                  
                  
               
               
                  
                     
                  
               
            
         
      
      
         NASA's Mission Support account formerly included Research and Program Management and Construction of Facilities. The Mission
            Support account shows spending from residual construction of facilities balances from prior to 2004.
         
      
         Working Capital Fund                                                                                                     
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â4546â0â4â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0801
                  Working Capital Fund (Reimbursable)
                  415
                  491
                  498
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  10
                  12
                  19
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  3
                  6
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  13
                  18
                  19
               
               
                  
                  Budget authority:
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  414
                  492
                  492
               
               
                  1930
                  Total budgetary resources available
                  427
                  510
                  511
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  12
                  19
                  13
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  161
                  169
                  171
               
               
                  3010
                  New obligations, unexpired accounts
                  415
                  491
                  498
               
               
                  3020
                  Outlays (gross)
                  â404
                  â483
                  â492
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â3
                  â6
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  169
                  171
                  177
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  161
                  169
                  171
               
               
                  3200
                  Obligated balance, end of year
                  169
                  171
                  177
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  414
                  492
                  492
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  246
                  344
                  344
               
               
                  4011
                  Outlays from discretionary balances
                  158
                  139
                  148
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  404
                  483
                  492
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4030
                  Federal sources
                  â403
                  â475
                  â473
               
               
                  4033
                  Non-Federal sources
                  â11
                  â17
                  â19
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4040
                  Offsets against gross budget authority  and outlays (total)
                  â414
                  â492
                  â492
               
               
                  4080
                  Outlays, net (discretionary)
                  â10
                  â9
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  â10
                  â9
                  
               
               
                  
                     
                  
               
            
         
      
      
         The Working Capital Fund provides goods and services on a reimbursable basis. The Fund consists of four program activities.
            The first is the Solutions for Enterprise-wide Procurement program, which finances, on an agency-wide basis, scientific and
            engineering workstation procurement. The second program is the Information Technology Infrastructure Integration Program which
            consolidates and centralizes management of NASA information technology services in the areas of Tier 1 service desk and ordering,
            web services and technologies, enterprise business and management applications, integrated network/communications services,
            end user services, and data center services. The third program, NASA's Shared Services Center, performs selected financial
            management, human resources, information technology, and procurement services for NASA Headquarters and Centers. The last
            program, the National Center for Critical Information Processing and Storage, provides federal customers collocation services
            at a Tier III level with complete redundancy in the electrical distribution system from the national grid to the rack level.
            
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â4546â0â4â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Reimbursable obligations:
               
               
                  11.1
                  Personnel compensation: Full-time permanent
                  14
                  14
                  17
               
               
                  12.1
                  Civilian personnel benefits
                  5
                  5
                  6
               
               
                  21.0
                  Travel and transportation of persons
                  1
                  1
                  1
               
               
                  25.1
                  Advisory and assistance services
                  1
                  1
                  1
               
               
                  25.2
                  Other services from non-Federal sources
                  46
                  46
                  46
               
               
                  25.3
                  Other goods and services from Federal sources
                  1
                  1
                  1
               
               
                  25.4
                  Operation and maintenance of facilities
                  4
                  4
                  4
               
               
                  25.7
                  Operation and maintenance of equipment
                  343
                  419
                  422
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  415
                  491
                  498
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â4546â0â4â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  2001
                  Reimbursable civilian full-time equivalent employment
                  145
                  140
                  161
               
               
                  
                     
                  
               
            
         
      
      Trust Funds  
         Science, Space, and Technology Education Trust Fund                                                                      
            
         Special and Trust Fund Receipts (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â8978â0â7â503
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  0100
                  Balance, start of year
                  15
                  15
                  15
               
               
                  
                  Receipts:
               
               
                  
                  Current law:
               
               
                  1140
                  Earnings on Investments, Science, Space and Technology Education Trust Fund
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  2000
                  Total: Balances and receipts
                  16
                  16
                  16
               
               
                  
                  Appropriations:
               
               
                  
                  Current law:
               
               
                  2101
                  Science, Space, and Technology Education Trust Fund
                  â1
                  â1
                  â1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  5099
                  Balance, end of year
                  15
                  15
                  15
               
               
                  
                     
                  
               
            
         
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â8978â0â7â503
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Science, Space, and Technology Education Trust Fund (Direct)
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations (object class 41.0)
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, mandatory:
               
               
                  1201
                  Appropriation (special or trust fund)
                  1
                  1
                  1
               
               
                  1930
                  Total budgetary resources available
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3010
                  New obligations, unexpired accounts
                  1
                  1
                  1
               
               
                  3020
                  Outlays (gross)
                  â1
                  â1
                  â1
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Mandatory:
               
               
                  4090
                  Budget authority, gross
                  1
                  1
                  1
               
               
                  
                  Outlays, gross:
               
               
                  4100
                  Outlays from new mandatory authority
                  
                  1
                  1
               
               
                  4101
                  Outlays from mandatory balances
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4110
                  Outlays, gross (total)
                  1
                  1
                  1
               
               
                  4180
                  Budget authority, net (total)
                  1
                  1
                  1
               
               
                  4190
                  Outlays, net (total)
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  5000
                  Total investments, SOY: Federal securities: Par value
                  16
                  16
                  16
               
               
                  5001
                  Total investments, EOY: Federal securities: Par value
                  16
                  16
                  16
               
               
                  
                     
                  
               
            
         
      
         National Space Grant Program                                                                                             
            
         Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â8977â0â7â252
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  1
                  1
                  1
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1
                  1
                  1
               
               
                  3200
                  Obligated balance, end of year
                  1
                  1
                  1
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  
                  
                  
               
               
                  
                     
                  
               
            
         
      
         Administrative Provisions                                                                                                
            
         
         Administrative provisions
         (Including transfers of funds)Funds for any announced prize otherwise authorized shall remain available, without fiscal year limitation, until the prize
            is claimed or the offer is withdrawn.
      Not to exceed 5 percent of any appropriation made available for the current fiscal year for the National Aeronautics and Space
            Administration in this Act may be transferred between such appropriations, but no such appropriation, except as otherwise
            specifically provided, shall be increased by more than 10 percent by any such transfers. Any such funds transferred to "Construction and Environmental Compliance and Restoration" for construction activities shall
               not increase that appropriation by more than 20 percent. Balances so transferred shall be merged with and available for the same purposes and the same time period as the appropriations
            to which transferred. Any transfer pursuant to this provision shall be treated as a reprogramming of funds under section  504 of this Act and shall not be available for obligation except in compliance with the procedures set forth in that section.
      The spending plan required by this Act shall be provided by NASA at the theme and program level. The spending plan, as well as any subsequent change of an amount established in that spending plan that meets the
            notification requirements of section 504 of this Act, shall be treated as a reprogramming under section 504 of this Act and shall not be available for obligation or expenditure except in compliance with the procedures set forth in
            that section.
      
      
      
         General and Administrative Provisions                                                                                    
            
         
         GENERAL FUND RECEIPT ACCOUNTS                                                                                            
            
         (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  
                  2016 actual
                  2017 est.
                  2018 est.
               
               
                  
                     
                  
               
               
                  Offsetting receipts from the public:
               
               
                  080â322000
                  All Other General Fund Proprietary Receipts Including Budget Clearing Accounts
                  5
                  15
                  15
               
               
                  General Fund Offsetting receipts from the public
                  5
                  15
                  15
               
               
                  
                     
                  
               
               
                  
               
               
                  Intragovernmental payments:
               
               
                  080â388500
                  Undistributed Intragovernmental Payments and Receivables from Cancelled Accounts
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  General Fund Intragovernmental payments
                  1