[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,  $6,306,500,000, to remain available until September 30,  2022.
      (Science Appropriations Act, 2020.)
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0120â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Science
                  6,576
                  7,139
                  6,307
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  400
                  745
                  749
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  34
                  74
                  74
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  434
                  819
                  823
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  6,906
                  7,139
                  6,307
               
               
                  1120
                  Appropriations transferred to other accts CECR [080â0130]
                  â10
                  
                  
               
               
                  1120
                  Appropriations transferred to other acct Aeronautics [080â0126]
                  â9
                  
                  
               
               
                  1131
                  Unobligated balance of appropriations permanently reduced
                  
                  â70
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  6,887
                  7,069
                  6,307
               
               
                  1930
                  Total budgetary resources available
                  7,321
                  7,888
                  7,130
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  745
                  749
                  823
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  4,082
                  4,367
                  5,304
               
               
                  3010
                  New obligations, unexpired accounts
                  6,576
                  7,139
                  6,307
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  108
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â6,254
                  â6,128
                  â6,490
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â34
                  â74
                  â74
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â111
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  4,367
                  5,304
                  5,047
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  4,082
                  4,367
                  5,304
               
               
                  3200
                  Obligated balance, end of year
                  4,367
                  5,304
                  5,047
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  6,887
                  7,069
                  6,307
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  2,575
                  2,616
                  2,334
               
               
                  4011
                  Outlays from discretionary balances
                  3,679
                  3,512
                  4,156
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  6,254
                  6,128
                  6,490
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â7
                  
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  7
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4060
                  Additional offsets against budget authority only (total)
                  7
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  6,887
                  7,069
                  6,307
               
               
                  4080
                  Outlays, net (discretionary)
                  6,247
                  6,128
                  6,490
               
               
                  4180
                  Budget authority, net (total)
                  6,887
                  7,069
                  6,307
               
               
                  4190
                  Outlays, net (total)
                  6,247
                  6,128
                  6,490
               
               
                  
                     
                  
               
            
         
      
      
         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, focus on three interdisciplinary objectives: discovering the secrets
            of the Universe; searching for life in the Solar System and beyond; and safeguarding and improving life on Earth. These objectives
            include research 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. Additionally, the Budget
            funds within Science a lunar robotic exploration program that will support innovative approaches to achieving human and science
            exploration goals. It also supports a Mars exploration program that develops and operates robotic missions and conducts research
            and analysis to address decadal science objectives and prepare for future human exploration. 
         
         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
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  263
                  257
                  252
               
               
                  11.3
                  Other than full-time permanent
                  3
                  3
                  3
               
               
                  11.5
                  Other personnel compensation
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  267
                  261
                  256
               
               
                  12.1
                  Civilian personnel benefits
                  84
                  91
                  81
               
               
                  21.0
                  Travel and transportation of persons
                  24
                  26
                  23
               
               
                  22.0
                  Transportation of things
                  9
                  10
                  9
               
               
                  23.2
                  Rental payments to others
                  4
                  4
                  4
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  6
                  7
                  6
               
               
                  24.0
                  Printing and reproduction
                  1
                  1
                  1
               
               
                  25.1
                  Advisory and assistance services
                  97
                  105
                  93
               
               
                  25.2
                  Other services from non-Federal sources
                  131
                  142
                  126
               
               
                  25.3
                  Other goods and services from Federal sources
                  246
                  267
                  236
               
               
                  25.4
                  Operation and maintenance of facilities
                  23
                  25
                  22
               
               
                  25.5
                  Research and development contracts
                  4,641
                  5,068
                  4,449
               
               
                  25.7
                  Operation and maintenance of equipment
                  128
                  139
                  123
               
               
                  26.0
                  Supplies and materials
                  34
                  37
                  33
               
               
                  31.0
                  Equipment
                  40
                  43
                  38
               
               
                  32.0
                  Land and structures
                  1
                  1
                  1
               
               
                  41.0
                  Grants, subsidies, and contributions
                  840
                  912
                  806
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  6,576
                  7,139
                  6,307
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0120â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  2,010
                  1,851
                  1,862
               
               
                  
                     
                  
               
            
         
      
         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,  $819,000,000, to remain available until September 30,  2022.
      (Science Appropriations Act, 2020.)
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0126â0â1â402
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Aeronautics
                  729
                  784
                  819
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  25
                  27
                  39
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  6
                  12
                  12
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  31
                  39
                  51
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  725
                  784
                  819
               
               
                  1120
                  Appropriations transferred to other CECR [080â0130]
                  â9
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct Science [080â0120]
                  9
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  725
                  784
                  819
               
               
                  1930
                  Total budgetary resources available
                  756
                  823
                  870
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  27
                  39
                  51
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  395
                  406
                  473
               
               
                  3010
                  New obligations, unexpired accounts
                  729
                  784
                  819
               
               
                  3020
                  Outlays (gross)
                  â710
                  â705
                  â796
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â6
                  â12
                  â12
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  406
                  473
                  484
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  395
                  406
                  473
               
               
                  3200
                  Obligated balance, end of year
                  406
                  473
                  484
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  725
                  784
                  819
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  372
                  400
                  418
               
               
                  4011
                  Outlays from discretionary balances
                  338
                  305
                  378
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  710
                  705
                  796
               
               
                  4180
                  Budget authority, net (total)
                  725
                  784
                  819
               
               
                  4190
                  Outlays, net (total)
                  710
                  705
                  796
               
               
                  
                     
                  
               
            
         
      
      
         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, Transformative Aeronautics Concepts, and Aerosciences Evaluation
            and Test Capabilities. Full costs of these programs include all labor, travel, procurement, test, and fabrication costs associated
            with the research, development, operations, and other general and administrative activities required to execute the programs.
            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
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  163
                  149
                  156
               
               
                  11.3
                  Other than full-time permanent
                  4
                  4
                  4
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  167
                  153
                  160
               
               
                  12.1
                  Civilian personnel benefits
                  53
                  57
                  60
               
               
                  21.0
                  Travel and transportation of persons
                  7
                  8
                  8
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  3
                  3
                  3
               
               
                  25.1
                  Advisory and assistance services
                  24
                  26
                  27
               
               
                  25.2
                  Other services from non-Federal sources
                  28
                  30
                  31
               
               
                  25.3
                  Other goods and services from Federal sources
                  6
                  6
                  7
               
               
                  25.4
                  Operation and maintenance of facilities
                  40
                  43
                  45
               
               
                  25.5
                  Research and development contracts
                  262
                  296
                  308
               
               
                  25.7
                  Operation and maintenance of equipment
                  39
                  55
                  58
               
               
                  26.0
                  Supplies and materials
                  16
                  17
                  18
               
               
                  31.0
                  Equipment
                  28
                  30
                  31
               
               
                  32.0
                  Land and structures
                  1
                  1
                  1
               
               
                  41.0
                  Grants, subsidies, and contributions
                  55
                  59
                  62
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  729
                  784
                  819
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0126â0â1â402
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  1,374
                  1,194
                  1,161
               
               
                  
                     
                  
               
            
         
      
          Exploration Technology
         For necessary expenses, not otherwise provided for, in the conduct and support of space exploration technology  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,  $1,578,300,000, to remain available until September 30,  2022.
      (Science Appropriations Act, 2020.)
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0131â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Exploration Technology
                  906
                  1,100
                  1,578
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  40
                  67
                  79
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  6
                  12
                  12
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  46
                  79
                  91
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  927
                  1,100
                  1,578
               
               
                  1930
                  Total budgetary resources available
                  973
                  1,179
                  1,669
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  67
                  79
                  91
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  528
                  613
                  658
               
               
                  3010
                  New obligations, unexpired accounts
                  906
                  1,100
                  1,578
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  2
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â813
                  â1,043
                  â1,219
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â6
                  â12
                  â12
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â4
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  613
                  658
                  1,005
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  528
                  613
                  658
               
               
                  3200
                  Obligated balance, end of year
                  613
                  658
                  1,005
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  927
                  1,100
                  1,578
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  384
                  451
                  647
               
               
                  4011
                  Outlays from discretionary balances
                  429
                  592
                  572
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  813
                  1,043
                  1,219
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â1
                  
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  927
                  1,100
                  1,578
               
               
                  4080
                  Outlays, net (discretionary)
                  812
                  1,043
                  1,219
               
               
                  4180
                  Budget authority, net (total)
                  927
                  1,100
                  1,578
               
               
                  4190
                  Outlays, net (total)
                  812
                  1,043
                  1,219
               
               
                  
                     
                  
               
            
         
      
      
         The Budget renames the Space Technology account to Exploration Technology to better reflect the focus of this account on supporting
            the Exploration Campaign.  Space Technology Mission Directorate is and will continue to be the organization name.
         
         The Exploration Technology appropriation provides for the costs associated with the research and technology development needed
            for space exploration. 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 programs within the Exploration Technology account enable and reduce barriers to new exploration 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 Exploration Technology appropriation funds
            several programs: Small Business Innovative Research (SBIR), Small Business Technology Transfer (STTR), Early Stage Innovation
            & Partnerships, Technology Maturation, and Technology Demonstrations. 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
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  92
                  90
                  90
               
               
                  11.3
                  Other than full-time permanent
                  2
                  2
                  3
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  94
                  92
                  93
               
               
                  12.1
                  Civilian personnel benefits
                  30
                  40
                  44
               
               
                  21.0
                  Travel and transportation of persons
                  5
                  6
                  9
               
               
                  22.0
                  Transportation of things
                  2
                  2
                  3
               
               
                  25.1
                  Advisory and assistance services
                  34
                  45
                  71
               
               
                  25.2
                  Other services from non-Federal sources
                  35
                  46
                  74
               
               
                  25.3
                  Other goods and services from Federal sources
                  32
                  41
                  68
               
               
                  25.4
                  Operation and maintenance of facilities
                  4
                  5
                  7
               
               
                  25.5
                  Research and development contracts
                  582
                  713
                  1,035
               
               
                  25.7
                  Operation and maintenance of equipment
                  19
                  23
                  43
               
               
                  26.0
                  Supplies and materials
                  11
                  13
                  19
               
               
                  31.0
                  Equipment
                  9
                  11
                  16
               
               
                  41.0
                  Grants, subsidies, and contributions
                  49
                  63
                  96
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  906
                  1,100
                  1,578
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0131â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  751
                  668
                  669
               
               
                  
                     
                  
               
            
         
      
         deep space exploration systemsFor 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,  $8,761,700,000, to remain available until September 30,  2022.
      (Science Appropriations Act, 2020.)
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0124â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Deep Space Exploration Systems
                  5,290
                  6,018
                  8,762
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  416
                  198
                  251
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  27
                  53
                  53
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  443
                  251
                  304
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  5,051
                  6,018
                  8,762
               
               
                  1120
                  Appropriations transferred to other CECR [080â0130]
                  â6
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  5,045
                  6,018
                  8,762
               
               
                  1930
                  Total budgetary resources available
                  5,488
                  6,269
                  9,066
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  198
                  251
                  304
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1,375
                  2,118
                  2,517
               
               
                  3010
                  New obligations, unexpired accounts
                  5,290
                  6,018
                  8,762
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  26
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â4,523
                  â5,566
                  â7,141
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â27
                  â53
                  â53
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â23
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  2,118
                  2,517
                  4,085
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1,375
                  2,118
                  2,517
               
               
                  3200
                  Obligated balance, end of year
                  2,118
                  2,517
                  4,085
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  5,045
                  6,018
                  8,762
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  3,099
                  3,671
                  5,345
               
               
                  4011
                  Outlays from discretionary balances
                  1,424
                  1,895
                  1,796
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  4,523
                  5,566
                  7,141
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â1
                  
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  5,045
                  6,018
                  8,762
               
               
                  4080
                  Outlays, net (discretionary)
                  4,522
                  5,566
                  7,141
               
               
                  4180
                  Budget authority, net (total)
                  5,045
                  6,018
                  8,762
               
               
                  4190
                  Outlays, net (total)
                  4,522
                  5,566
                  7,141
               
               
                  
                     
                  
               
            
         
      
      
         The Budget has renamed the Exploration account Deep Space Exploration Systems to better reflect the activities in the account.
         This appropriation provides for costs associated with the development of systems and capabilities required for human exploration
            of space. The capabilities include launch and crew vehicles for missions beyond low Earth orbit; providing integrated systems
            to keep astronauts safe, healthy, and functional during deep space missions; and advancing the tools to increase exploration
            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 deep space exploration programs include the Space Launch System, Orion, Exploration Ground Systems under the
            Exploration Systems Development theme, as well as the Exploration Research and Development theme which consists of Advanced
            Exploration Systems, the Gateway, Advanced Cislunar and Surface Capabilities, the Human Landing System, and the Human Research
            Program.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0124â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  343
                  390
                  400
               
               
                  11.3
                  Other than full-time permanent
                  3
                  3
                  5
               
               
                  11.5
                  Other personnel compensation
                  2
                  2
                  3
               
               
                  11.8
                  Special personal services payments
                  1
                  1
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  349
                  396
                  410
               
               
                  12.1
                  Civilian personnel benefits
                  114
                  130
                  189
               
               
                  13.0
                  Benefits for former personnel
                  1
                  1
                  2
               
               
                  21.0
                  Travel and transportation of persons
                  15
                  17
                  25
               
               
                  22.0
                  Transportation of things
                  1
                  1
                  2
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  25
                  28
                  41
               
               
                  25.1
                  Advisory and assistance services
                  397
                  452
                  658
               
               
                  25.2
                  Other services from non-Federal sources
                  48
                  55
                  80
               
               
                  25.3
                  Other goods and services from Federal sources
                  40
                  45
                  66
               
               
                  25.4
                  Operation and maintenance of facilities
                  133
                  151
                  220
               
               
                  25.5
                  Research and development contracts
                  3,466
                  3,944
                  5,908
               
               
                  25.7
                  Operation and maintenance of equipment
                  182
                  207
                  301
               
               
                  26.0
                  Supplies and materials
                  42
                  48
                  70
               
               
                  31.0
                  Equipment
                  55
                  63
                  91
               
               
                  32.0
                  Land and structures
                  349
                  397
                  578
               
               
                  41.0
                  Grants, subsidies, and contributions
                  73
                  83
                  121
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  5,290
                  6,018
                  8,762
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0124â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  2,793
                  2,703
                  2,785
               
               
                  
                     
                  
               
            
         
      
         Science, Technology, Engineering, and Mathematics Engagement Unobligated balances previously appropriated under this heading shall be available for purposes of the closure of the Office
               of STEM Engagement, including, but not limited to, ongoing administration, oversight, monitoring, and funding of grants previously
               awarded by the Office of STEM Engagement.
      (Science Appropriations Act, 2020.)
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0128â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  STEM Engagement
                  110
                  120
                  
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  8
                  9
                  11
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  1
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  9
                  11
                  13
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  110
                  120
                  
               
               
                  1930
                  Total budgetary resources available
                  119
                  131
                  13
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  9
                  11
                  13
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  148
                  149
                  151
               
               
                  3010
                  New obligations, unexpired accounts
                  110
                  120
                  
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  1
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â107
                  â116
                  â89
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â1
                  â2
                  â2
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  149
                  151
                  60
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  148
                  149
                  151
               
               
                  3200
                  Obligated balance, end of year
                  149
                  151
                  60
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  110
                  120
                  
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  14
                  16
                  
               
               
                  4011
                  Outlays from discretionary balances
                  93
                  100
                  89
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  107
                  116
                  89
               
               
                  4180
                  Budget authority, net (total)
                  110
                  120
                  
               
               
                  4190
                  Outlays, net (total)
                  107
                  116
                  89
               
               
                  
                     
                  
               
            
         
      
      
         The Budget proposes to terminate funding for the Office of Science, Technology, Engineering, and Mathematics (STEM) Engagement's
            portfolio of programs and projects. Unobligated balances previously appropriated may be used to support close-out costs. Moving
            forward, a small team at NASA headquarters funded out of Safety, Security, and Mission Services will be accountable for strategic
            direction and coordination of the agency's STEM engagement efforts.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0128â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  11.1
                  Direct obligations: Personnel compensation: Full-time permanent
                  4
                  4
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  4
                  4
                  
               
               
                  12.1
                  Civilian personnel benefits
                  2
                  2
                  
               
               
                  25.1
                  Advisory and assistance services
                  2
                  2
                  
               
               
                  25.2
                  Other services from non-Federal sources
                  6
                  7
                  
               
               
                  25.5
                  Research and development contracts
                  6
                  7
                  
               
               
                  25.7
                  Operation and maintenance of equipment
                  6
                  7
                  
               
               
                  41.0
                  Grants, subsidies, and contributions
                  84
                  91
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  110
                  120
                  
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0128â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  36
                  38
                  
               
               
                  
                     
                  
               
            
         
      
         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,  $3,009,900,000, to remain available until September 30,  2022.
      (Science Appropriations Act, 2020.)
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0122â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Safety, Security and Mission Services
                  2,776
                  2,913
                  3,010
               
               
                  0801
                  Cross Agency Support (Reimbursable)
                  1,633
                  2,344
                  1,932
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts
                  4,409
                  5,257
                  4,942
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  550
                  781
                  829
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  62
                  48
                  48
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  612
                  829
                  877
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  2,755
                  2,913
                  3,010
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  1,582
                  2,344
                  1,932
               
               
                  1701
                  Change in uncollected payments, Federal sources
                  241
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1750
                  Spending auth from offsetting collections, disc (total)
                  1,823
                  2,344
                  1,932
               
               
                  1900
                  Budget authority (total)
                  4,578
                  5,257
                  4,942
               
               
                  1930
                  Total budgetary resources available
                  5,190
                  6,086
                  5,819
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  781
                  829
                  877
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  2,420
                  2,134
                  1,887
               
               
                  3010
                  New obligations, unexpired accounts
                  4,409
                  5,257
                  4,942
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  20
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â4,629
                  â5,456
                  â5,336
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â62
                  â48
                  â48
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â24
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  2,134
                  1,887
                  1,445
               
               
                  
                  Uncollected payments:
               
               
                  3060
                  Uncollected pymts, Fed sources, brought forward, Oct 1
                  â1,882
                  â1,907
                  â1,907
               
               
                  3070
                  Change in uncollected pymts, Fed sources, unexpired
                  â241
                  
                  
               
               
                  3071
                  Change in uncollected pymts, Fed sources, expired
                  216
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3090
                  Uncollected pymts, Fed sources, end of year
                  â1,907
                  â1,907
                  â1,907
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  538
                  227
                  â20
               
               
                  3200
                  Obligated balance, end of year
                  227
                  â20
                  â462
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  4,578
                  5,257
                  4,942
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  2,720
                  3,127
                  3,065
               
               
                  4011
                  Outlays from discretionary balances
                  1,909
                  2,329
                  2,271
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  4,629
                  5,456
                  5,336
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4030
                  Federal sources
                  â1,588
                  â2,094
                  â1,682
               
               
                  4033
                  Non-Federal sources
                  â209
                  â250
                  â250
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4040
                  Offsets against gross budget authority  and outlays (total)
                  â1,797
                  â2,344
                  â1,932
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4050
                  Change in uncollected pymts, Fed sources, unexpired
                  â241
                  
                  
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  215
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4060
                  Additional offsets against budget authority only (total)
                  â26
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  2,755
                  2,913
                  3,010
               
               
                  4080
                  Outlays, net (discretionary)
                  2,832
                  3,112
                  3,404
               
               
                  4180
                  Budget authority, net (total)
                  2,755
                  2,913
                  3,010
               
               
                  4190
                  Outlays, net (total)
                  2,832
                  3,112
                  3,404
               
               
                  
                     
                  
               
            
         
      
      
         Safety, Security, and Mission Services (SSMS) manages agency-wide mission support functions and some of NASA's research facilities.
            This appropriation provides for the operations and maintenance, salaries and related expenses, and other general and administrative
            activities that support all NASA's missions. Beginning in FY 2021, NASA's Operating Plan and accounting structure will reflect
            the new architecture adopted by the Agency for the administrative functions funded under SSMS.  Under the new architecture,
            programs, projects and activities fall under the two Themes described below.
         
          Mission Services and Capabilities (MSaC) delivers enterprise solutions through three programs: Information Technology; Mission
            Enabling Services; and Infrastructure and Technical Capabilities. These programs meet workforce, infrastructure, information
            technology and business operations requirements necessary to enable NASA's mission.  MSaC ensures that critical Agency operations
            across all NASA Centers are effective, efficient, safe, and meet statutory, regulatory, and fiduciary responsibilities.
         
          
         Engineering, Safety, and Operations (ESO) provides for the ongoing management of NASA Headquarters, nine Centers, and component
            facilities.  It funds medical and engineering technical authorities and contributes to the reduction of program risks by ensuring
            that technical skills and assets are ready and available to meet program and project requirements. ESO ensures that Center
            practices are technically and scientifically sound and that specialized infrastructure at the Centers is safe and reliable.
         
         
          
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0122â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  897
                  941
                  973
               
               
                  11.3
                  Other than full-time permanent
                  20
                  21
                  22
               
               
                  11.5
                  Other personnel compensation
                  36
                  38
                  39
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  953
                  1,000
                  1,034
               
               
                  12.1
                  Civilian personnel benefits
                  295
                  310
                  320
               
               
                  13.0
                  Benefits for former personnel
                  1
                  1
                  1
               
               
                  21.0
                  Travel and transportation of persons
                  25
                  26
                  27
               
               
                  22.0
                  Transportation of things
                  1
                  1
                  1
               
               
                  23.2
                  Rental payments to others
                  21
                  22
                  23
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  82
                  86
                  89
               
               
                  24.0
                  Printing and reproduction
                  3
                  3
                  3
               
               
                  25.1
                  Advisory and assistance services
                  241
                  253
                  261
               
               
                  25.2
                  Other services from non-Federal sources
                  238
                  250
                  258
               
               
                  25.3
                  Other goods and services from Federal sources
                  46
                  48
                  50
               
               
                  25.4
                  Operation and maintenance of facilities
                  203
                  213
                  220
               
               
                  25.5
                  Research and development contracts
                  160
                  168
                  173
               
               
                  25.6
                  Medical care
                  7
                  7
                  8
               
               
                  25.7
                  Operation and maintenance of equipment
                  388
                  407
                  421
               
               
                  26.0
                  Supplies and materials
                  16
                  17
                  17
               
               
                  31.0
                  Equipment
                  60
                  63
                  65
               
               
                  32.0
                  Land and structures
                  16
                  17
                  17
               
               
                  41.0
                  Grants, subsidies, and contributions
                  20
                  21
                  22
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.0
                  Direct obligations
                  2,776
                  2,913
                  3,010
               
               
                  99.0
                  Reimbursable obligations
                  1,633
                  2,344
                  1,932
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  4,409
                  5,257
                  4,942
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0122â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  7,158
                  7,601
                  7,602
               
               
                  2001
                  Reimbursable civilian full-time equivalent employment
                  434
                  301
                  301
               
               
                  
                     
                  
               
            
         
      
         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,  $539,085,000, to remain available until September 30,  2026: 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  2021 in an amount not to exceed  $18,700,000: 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.
      (Science Appropriations Act, 2020.)
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0130â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Construction and Environmental Compliance and Restoration (Direct)
                  460
                  373
                  539
               
               
                  0801
                  Construction and Environmental Compliance and Restoration (Reimbursable)
                  
                  22
                  22
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts
                  460
                  395
                  561
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  370
                  319
                  393
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  17
                  75
                  75
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  387
                  394
                  468
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  348
                  373
                  539
               
               
                  1120
                  Appropriations transferred to other acct Space Operations [080â0115]
                  â2
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct Aeronautics [080â0126]
                  9
                  
                  
               
               
                  1121
                  Appropriations transferred from other Science [080â0120]
                  10
                  
                  
               
               
                  1121
                  Appropriations transferred from other Exploration [080â0124]
                  6
                  
                  
               
               
                  1121
                  Appropriations transferred from other Space Operations [080â0115]
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  372
                  373
                  539
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  22
                  21
                  21
               
               
                  1900
                  Budget authority (total)
                  394
                  394
                  560
               
               
                  1930
                  Total budgetary resources available
                  781
                  788
                  1,028
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1940
                  Unobligated balance expiring
                  â2
                  
                  
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  319
                  393
                  467
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  784
                  753
                  562
               
               
                  3010
                  New obligations, unexpired accounts
                  460
                  395
                  561
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  18
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â475
                  â511
                  â500
               
               
                  3031
                  Unpaid obligations transferred from other accts [080â0110]
                  1
                  
                  
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â17
                  â75
                  â75
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â18
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  753
                  562
                  548
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  784
                  753
                  562
               
               
                  3200
                  Obligated balance, end of year
                  753
                  562
                  548
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  394
                  394
                  560
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  18
                  25
                  35
               
               
                  4011
                  Outlays from discretionary balances
                  457
                  486
                  465
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  475
                  511
                  500
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â22
                  â21
                  â21
               
               
                  4180
                  Budget authority, net (total)
                  372
                  373
                  539
               
               
                  4190
                  Outlays, net (total)
                  453
                  490
                  479
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for NASA's construction and environmental compliance and restoration activities, and makes available
            the net proceeds from Enhanced Use Leases for maintenance, capital revitalization, and improvement of real property assets
            and related personal property at NASA Centers received under the authority of section 20145 of the National Aeronautics and
            Space Act (51 U.S.C. 20145). The funding provides 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
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  2
                  2
                  2
               
               
                  25.1
                  Advisory and assistance services
                  24
                  19
                  28
               
               
                  25.2
                  Other services from non-Federal sources
                  52
                  42
                  61
               
               
                  25.3
                  Other goods and services from Federal sources
                  52
                  42
                  61
               
               
                  25.4
                  Operation and maintenance of facilities
                  53
                  45
                  63
               
               
                  25.5
                  Research and development contracts
                  9
                  7
                  11
               
               
                  25.7
                  Operation and maintenance of equipment
                  20
                  16
                  24
               
               
                  31.0
                  Equipment
                  1
                  1
                  1
               
               
                  32.0
                  Land and structures
                  246
                  199
                  288
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.0
                  Direct obligations
                  459
                  373
                  539
               
               
                  99.0
                  Reimbursable obligations
                  1
                  22
                  22
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  460
                  395
                  561
               
               
                  
                     
                  
               
            
         
      
          LEO and Spaceflight operations
         For 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,  $4,187,300,000, to remain available until September 30,  2022.
      (Science Appropriations Act, 2020.)
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0115â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  LEO and Spaceflight Operations
                  4,780
                  4,140
                  4,187
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  117
                  98
                  425
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  121
                  327
                  327
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  238
                  425
                  752
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  4,639
                  4,140
                  4,187
               
               
                  1120
                  Appropriations transferred to other accts CECR [080â0130]
                  â1
                  
                  
               
               
                  1121
                  Appropriations transferred from other acct CECR [080â0130]
                  2
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1160
                  Appropriation, discretionary (total)
                  4,640
                  4,140
                  4,187
               
               
                  1900
                  Budget authority (total)
                  4,640
                  4,140
                  4,187
               
               
                  1930
                  Total budgetary resources available
                  4,878
                  4,565
                  4,939
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  98
                  425
                  752
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  2,426
                  2,593
                  2,066
               
               
                  3010
                  New obligations, unexpired accounts
                  4,780
                  4,140
                  4,187
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  13
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â4,499
                  â4,340
                  â4,201
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â121
                  â327
                  â327
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â6
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  2,593
                  2,066
                  1,725
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  2,426
                  2,593
                  2,066
               
               
                  3200
                  Obligated balance, end of year
                  2,593
                  2,066
                  1,725
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  4,640
                  4,140
                  4,187
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  2,964
                  2,774
                  2,805
               
               
                  4011
                  Outlays from discretionary balances
                  1,535
                  1,566
                  1,396
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  4,499
                  4,340
                  4,201
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4033
                  Non-Federal sources
                  â3
                  
                  
               
               
                  
                  Additional offsets against gross budget authority only:
               
               
                  4052
                  Offsetting collections credited to expired accounts
                  3
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4060
                  Additional offsets against budget authority only (total)
                  3
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4070
                  Budget authority, net (discretionary)
                  4,640
                  4,140
                  4,187
               
               
                  4080
                  Outlays, net (discretionary)
                  4,496
                  4,340
                  4,201
               
               
                  4180
                  Budget authority, net (total)
                  4,640
                  4,140
                  4,187
               
               
                  4190
                  Outlays, net (total)
                  4,496
                  4,340
                  4,201
               
               
                  
                     
                  
               
            
         
      
      
         
         This appropriation provides for the full costs associated with human-related Low Earth Orbit (LEO) and spaceflight operations
            activities of the Agency. The full costs include all labor, travel, procurement, test, and fabrication costs associated with
            the research, development, operations, and other general and administrative activities conducted by the programs within this
            account. Major themes within the LEO and Spaceflight Operations account include the International Space Station, Space Transportation,
            Space and Flight Support, and Commercial LEO Development. Performance goals associated with these activities are addressed
            in NASA's detailed budget request.
         
         The International Space Station (ISS) is a complex of research laboratories in LEO where 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 activities unique to the on-orbit attributes of the facility.
         
         The Space Transportation theme is comprised of the Commercial Crew Program and Crew and Cargo Program, which transport U.S.
            astronauts and cargo safely back and forth to the ISS and, in the future, to other orbital platforms and destinations. Maintaining
            the ISS requires a fleet of vehicles and launch locations to transport astronauts, science experiments, supplies, maintenance
            hardware, and propellant to the ISS, and to dispose of waste generated on the ISS. The Commercial Crew Program partners with
            two U.S. companies, SpaceX and Boeing, to develop and operate safe, reliable, and affordable crew transportation to LEO. The
            Crew and Cargo Program purchases cargo transportation services to the ISS through contracts with Northrop Grumman, SpaceX,
            and Sierra Nevada and purchases crew transportation services from Boeing and SpaceX. Payments to develop and test commercial
            crew vehicles, and for initial Post Certification Missions for each provider are funded by the Commercial Crew Program, whereas
            subsequent payments for operational commercial crew missions are funded by the Crew and Cargo Program.
         
         Space and Flight Support is comprised of multiple programs that provide ongoing support for a wide range of services required
            for safe and successful space mission operations. These programs include Space Communications and Navigation, Communications
            Services Program, Human Space Flight Operations, Launch Services, and Rocket Propulsion Testing. Services are provided to
            a wide range of customers including NASA, other U.S. Federal agencies, foreign governments, and industry partners.
         
         Commercial LEO Development supports efforts to expand commercial activities in LEO, with a focus on enabling, developing,
            and deploying commercial platforms that can be used by NASA and other customers and on supporting the growth of private sector
            activity in LEO.
         
      
      Object Classification (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0115â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  
                  Personnel compensation:
               
               
                  11.1
                  Full-time permanent
                  292
                  253
                  256
               
               
                  11.3
                  Other than full-time permanent
                  3
                  3
                  3
               
               
                  11.5
                  Other personnel compensation
                  2
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  11.9
                  Total personnel compensation
                  297
                  258
                  261
               
               
                  12.1
                  Civilian personnel benefits
                  95
                  82
                  83
               
               
                  21.0
                  Travel and transportation of persons
                  15
                  13
                  13
               
               
                  22.0
                  Transportation of things
                  1,932
                  1,673
                  1,692
               
               
                  23.2
                  Rental payments to others
                  2
                  2
                  2
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  10
                  9
                  9
               
               
                  25.1
                  Advisory and assistance services
                  103
                  89
                  90
               
               
                  25.2
                  Other services from non-Federal sources
                  175
                  152
                  153
               
               
                  25.3
                  Other goods and services from Federal sources
                  76
                  66
                  67
               
               
                  25.4
                  Operation and maintenance of facilities
                  45
                  39
                  39
               
               
                  25.5
                  Research and development contracts
                  1,674
                  1,449
                  1,466
               
               
                  25.7
                  Operation and maintenance of equipment
                  274
                  237
                  240
               
               
                  26.0
                  Supplies and materials
                  18
                  16
                  16
               
               
                  31.0
                  Equipment
                  15
                  13
                  13
               
               
                  32.0
                  Land and structures
                  7
                  6
                  6
               
               
                  41.0
                  Grants, subsidies, and contributions
                  42
                  36
                  37
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  4,780
                  4,140
                  4,187
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0115â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  2,290
                  2,175
                  2,155
               
               
                  
                     
                  
               
            
         
      
         Office of inspector generalFor necessary expenses of the Office of Inspector General in carrying out the Inspector General Act of 1978,  $44,200,000,  to remain available until September 30,  2022.
      (Science Appropriations Act, 2020.)
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0109â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Office of Inspector General (Direct)
                  39
                  42
                  43
               
               
                  0801
                  Office of Inspector General (Reimbursable)
                  1
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts
                  40
                  44
                  45
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  
                  
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, discretionary:
               
               
                  1100
                  Appropriation
                  39
                  42
                  44
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  1
                  2
                  2
               
               
                  1900
                  Budget authority (total)
                  40
                  44
                  46
               
               
                  1930
                  Total budgetary resources available
                  41
                  44
                  46
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1940
                  Unobligated balance expiring
                  â1
                  
                  
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  
                  
                  1
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  5
                  7
                  7
               
               
                  3010
                  New obligations, unexpired accounts
                  40
                  44
                  45
               
               
                  3011
                  Obligations ("upward adjustments"), expired accounts
                  1
                  
                  
               
               
                  3020
                  Outlays (gross)
                  â38
                  â44
                  â45
               
               
                  3041
                  Recoveries of prior year unpaid obligations, expired
                  â1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  7
                  7
                  7
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  5
                  7
                  7
               
               
                  3200
                  Obligated balance, end of year
                  7
                  7
                  7
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  40
                  44
                  46
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  34
                  39
                  40
               
               
                  4011
                  Outlays from discretionary balances
                  4
                  5
                  5
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  38
                  44
                  45
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4030
                  Federal sources
                  â1
                  â2
                  â2
               
               
                  4180
                  Budget authority, net (total)
                  39
                  42
                  44
               
               
                  4190
                  Outlays, net (total)
                  37
                  42
                  43
               
               
                  
                     
                  
               
            
         
      
      
         This appropriation provides for 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 NASA 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
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Direct obligations:
               
               
                  11.1
                  Personnel compensation: Full-time permanent
                  22
                  23
                  23
               
               
                  12.1
                  Civilian personnel benefits
                  9
                  10
                  10
               
               
                  21.0
                  Travel and transportation of persons
                  1
                  1
                  1
               
               
                  25.2
                  Other services from non-Federal sources
                  3
                  4
                  5
               
               
                  25.3
                  Other goods and services from Federal sources
                  1
                  1
                  1
               
               
                  25.7
                  Operation and maintenance of equipment
                  2
                  2
                  2
               
               
                  31.0
                  Equipment
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.0
                  Direct obligations
                  39
                  42
                  43
               
               
                  99.0
                  Reimbursable obligations
                  1
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  40
                  44
                  45
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0109â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  1001
                  Direct civilian full-time equivalent employment
                  170
                  184
                  187
               
               
                  2001
                  Reimbursable civilian full-time equivalent employment
                  5
                  5
                  5
               
               
                  
                     
                  
               
            
         
      
         Science, Aeronautics, and ExplorationProgram and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0114â0â1â999
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  
                  
               
               
                  1029
                  Other balances withdrawn to Treasury
                  â1
                  
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  
                  
                  
               
               
                  
                     
                  
               
            
         
      
      
         
      
         Human Space FlightProgram and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0111â0â1â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  1
                  
                  
               
               
                  1029
                  Other balances withdrawn to Treasury
                  â1
                  
                  
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1
                  
                  
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â1
                  
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1
                  
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  
                  
                  
               
               
                  
                     
                  
               
            
         
      
      
         
      
         Science, Aeronautics and TechnologyProgram and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0110â0â1â999
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  
                  
               
               
                  1029
                  Other balances withdrawn to Treasury
                  â1
                  
                  
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  1
                  
                  
               
               
                  3030
                  Unpaid obligations transferred to other accts [080â0130]
                  â1
                  
                  
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  1
                  
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  
                  
                  
               
               
                  
                     
                  
               
            
         
      
      
         
      
         Mission SupportProgram and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â0112â0â1â999
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  
                  
               
               
                  1029
                  Other balances withdrawn to Treasury
                  â1
                  
                  
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  
                  
                  
               
               
                  
                     
                  
               
            
         
      
      
         
      
         Working Capital FundProgram and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â4546â0â4â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0801
                  Working Capital Fund (Reimbursable)
                  482
                  531
                  558
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  14
                  30
                  38
               
               
                  1021
                  Recoveries of prior year unpaid obligations
                  2
                  8
                  8
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  1050
                  Unobligated balance (total)
                  16
                  38
                  46
               
               
                  
                  Budget authority:
               
               
                  
                  Spending authority from offsetting collections, discretionary:
               
               
                  1700
                  Collected
                  496
                  531
                  558
               
               
                  1930
                  Total budgetary resources available
                  512
                  569
                  604
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  30
                  38
                  46
               
               
                  
                     
                  
               
               
                  
                  Change in obligated balance:
               
               
                  
                  Unpaid obligations:
               
               
                  3000
                  Unpaid obligations, brought forward, Oct 1
                  195
                  214
                  198
               
               
                  3010
                  New obligations, unexpired accounts
                  482
                  531
                  558
               
               
                  3020
                  Outlays (gross)
                  â461
                  â539
                  â547
               
               
                  3040
                  Recoveries of prior year unpaid obligations, unexpired
                  â2
                  â8
                  â8
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  3050
                  Unpaid obligations, end of year
                  214
                  198
                  201
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  3100
                  Obligated balance, start of year
                  195
                  214
                  198
               
               
                  3200
                  Obligated balance, end of year
                  214
                  198
                  201
               
               
                  
                     
                  
               
               
                  
                  Budget authority and outlays, net:
               
               
                  
                  Discretionary:
               
               
                  4000
                  Budget authority, gross
                  496
                  531
                  558
               
               
                  
                  Outlays, gross:
               
               
                  4010
                  Outlays from new discretionary authority
                  272
                  319
                  335
               
               
                  4011
                  Outlays from discretionary balances
                  189
                  220
                  212
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4020
                  Outlays, gross (total)
                  461
                  539
                  547
               
               
                  
                  Offsets against gross budget authority and outlays:
               
               
                  
                  Offsetting collections (collected) from:
               
               
                  4030
                  Federal sources
                  â476
                  â496
                  â496
               
               
                  4033
                  Non-Federal sources
                  â20
                  â35
                  â62
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  4040
                  Offsets against gross budget authority  and outlays (total)
                  â496
                  â531
                  â558
               
               
                  4080
                  Outlays, net (discretionary)
                  â35
                  8
                  â11
               
               
                  4180
                  Budget authority, net (total)
                  
                  
                  
               
               
                  4190
                  Outlays, net (total)
                  â35
                  8
                  â11
               
               
                  
                     
                  
               
            
         
      
      
         The Working Capital Fund provides goods and services on a reimbursable basis. The Fund finances 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 customer service 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 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
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Reimbursable obligations:
               
               
                  11.1
                  Personnel compensation: Full-time permanent
                  15
                  17
                  19
               
               
                  12.1
                  Civilian personnel benefits
                  5
                  6
                  6
               
               
                  21.0
                  Travel and transportation of persons
                  1
                  1
                  1
               
               
                  23.3
                  Communications, utilities, and miscellaneous charges
                  7
                  8
                  8
               
               
                  25.2
                  Other services from non-Federal sources
                  43
                  48
                  50
               
               
                  25.3
                  Other goods and services from Federal sources
                  1
                  1
                  1
               
               
                  25.4
                  Operation and maintenance of facilities
                  24
                  27
                  28
               
               
                  25.7
                  Operation and maintenance of equipment
                  384
                  421
                  443
               
               
                  26.0
                  Supplies and materials
                  1
                  1
                  1
               
               
                  31.0
                  Equipment
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  99.9
                  Total new obligations, unexpired accounts
                  482
                  531
                  558
               
               
                  
                     
                  
               
            
         
      
      Employment Summary
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â4546â0â4â252
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  2001
                  Reimbursable civilian full-time equivalent employment
                  138
                  179
                  179
               
               
                  
                     
                  
               
            
         
      
      Trust Funds
         Science, Space, and Technology Education Trust FundSpecial and Trust Fund Receipts (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â8978â0â7â503
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  0100
                  Balance, start of year
                  16
                  16
                  16
               
               
                  
                  Receipts:
               
               
                  
                  Current law:
               
               
                  1140
                  Earnings on Investments, Science, Space and Technology Education Trust Fund
                  
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  2000
                  Total: Balances and receipts
                  16
                  17
                  17
               
               
                  
                  Appropriations:
               
               
                  
                  Current law:
               
               
                  2101
                  Science, Space, and Technology Education Trust Fund
                  â1
                  â1
                  â1
               
               
                  5098
                  Rounding adjustment
                  1
                  
                  
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  5099
                  Balance, end of year
                  16
                  16
                  16
               
               
                  
                     
                  
               
            
         
      
      Program and Financing (in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  Identification code 080â8978â0â7â503
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  
                  Obligations by program activity:
               
               
                  0001
                  Science, Space, and Technology Education Trust Fund
                  1
                  1
                  1
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  0900
                  Total new obligations, unexpired accounts (object class 41.0)
                  1
                  1
                  1
               
               
                  
                     
                  
               
               
                  
                  Budgetary resources:
               
               
                  
                  Unobligated balance:
               
               
                  1000
                  Unobligated balance brought forward, Oct 1
                  1
                  1
                  1
               
               
                  
                  Budget authority:
               
               
                  
                  Appropriations, mandatory:
               
               
                  1201
                  Appropriation (special or trust fund)
                  1
                  1
                  1
               
               
                  1930
                  Total budgetary resources available
                  2
                  2
                  2
               
               
                  
                  Memorandum (non-add) entries:
               
               
                  1941
                  Unexpired unobligated balance, end of year
                  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
                  17
                  16
                  15
               
               
                  5001
                  Total investments, EOY: Federal securities: Par value
                  16
                  15
                  14
               
               
                  
                     
                  
               
            
         
      
         Administrative Provisions
         Administrative provisions
         (including transfers of funds)Funds for any announced prize otherwise authorized shall remain available, without fiscal year limitation, until a 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 funds transferred to "Construction
            and Environmental Compliance and Restoration" for construction activities shall not increase that account 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.
      Not to exceed 5 percent of any appropriation provided for the National Aeronautics and Space Administration under previous
            appropriations Acts that remains available for obligation or expenditure in fiscal year  2021 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 transfer pursuant to this provision shall retain its original
            availability and 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.
      Notwithstanding the limitations in the preceding two paragraphs, upon the determination of the Administrator that such action
               is necessary in support of establishment of a United States strategic presence on the Moon, the Administrator may transfer
               funds between Deep Space Exploration Systems and LEO and Spaceflight Operations appropriations available to the National Aeronautics
               and Space Administration, including funds appropriated in prior Acts that remain available for obligation or expenditure,
               to be merged with and to be available for the same purposes as the appropriation 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.
      
      (Science Appropriations Act, 2020.)
         General and Administrative Provisions
         GENERAL FUND RECEIPT ACCOUNTS(in millions of dollars)
      
         
            
               
                  
                     
                  
               
               
                  
                  2019 actual
                  2020 est.
                  2021 est.
               
               
                  
                     
                  
               
               
                  Offsetting receipts from the public:
               
               
                  080â322000
                  All Other General Fund Proprietary Receipts Including Budget Clearing Accounts
                  2
                  4
                  4
               
               
                  General Fund Offsetting receipts from the public
                  2
                  4
                  4
               
               
                  
                     
                  
               
               
                  
               
               
                  Intragovernmental payments:
               
               
                  080â388500
                  Undistributed Intragovernmental Payments and Receivables from Cancelled Accounts
                  1
                  2
                  2
               
               
                  
                  
                  
                     
                  
                  
                     
                  
                  
                     
                  
               
               
                  General Fund Intragovernmental payments
                  1
                  2
                  2