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    [Appendix]
    [Detailed Budget Estimates by Agency]
    [National Science Foundation]
    [From the U.S. Government Publishing Office, www.gpo.gov]

             <h1>NATIONAL SCIENCE FOUNDATION

             </h1>

          NATIONAL SCIENCE FOUNDATION

          Federal Funds
             Research and Related ActivitiesFor necessary expenses in carrying out the National Science Foundation Act of 1950 (42 U.S.C. 1861 et seq.), and Public Law
                86–209 (42 U.S.C. 1880 et seq.); services as authorized by section 3109 of title 5, United States Code; maintenance and operation
                of aircraft and purchase of flight services for research support; acquisition of aircraft; and authorized travel; $5,361,650,000, to remain available until September 30, 2019, of which not to exceed $500,000,000 shall remain available until expended for polar research and operations support, and for reimbursement to other Federal agencies
                for operational and science support and logistical and other related activities for the United States Antarctic program: Provided, That receipts for scientific support services and materials furnished by the National Research Centers and other National
                Science Foundation supported research facilities may be credited to this appropriation.
          Note.—A full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
             budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114–254). The amounts
             included for 2017 reflect the annualized level provided by the continuing resolution.

          Program and Financing (in millions of dollars)

                      Identification code 049–0100–0–1–999
                      2016 actual
                      2017 est.
                      2018 est.

                      Obligations by program activity:

                      0001
                      Biological Sciences
                      724
                      744
                      672

                      0002
                      Computer and Information Science and Engineering
                      935
                      936
                      839

                      0003
                      Engineering
                      915
                      916
                      834

                      0005
                      Geosciences
                      1,327
                      1,320
                      783

                      0006
                      Mathematical and Physical Sciences
                      1,349
                      1,362
                      1,220

                      0007
                      Social, Behavioral and Economic Sciences
                      272
                      272
                      244

                      0008
                      Integrative Activities
                      426
                      437
                      316

                      0009
                      Office of International Science and Engineering
                      49
                      49
                      44

                      0010
                      Office of Polar Programs

                      409

                      0013
                      Arctic Research Commission
                      1
                      1
                      1

                      0799
                      Total direct obligations
                      5,998
                      6,037
                      5,362

                      0801
                      Research and Related Activities (Reimbursable)
                      84
                      126
                      120

                      0900
                      Total new obligations, unexpired accounts
                      6,082
                      6,163
                      5,482

                      Budgetary resources:

                      Unobligated balance:

                      1000
                      Unobligated balance brought forward, Oct 1
                      11
                      20

                      1021
                      Recoveries of prior year unpaid obligations
                      13

                      1050
                      Unobligated balance (total)
                      24
                      20

                      Budget authority:

                      Appropriations, discretionary:

                      1100
                      Appropriation
                      6,034
                      6,023
                      5,362

                      1120
                      Appropriations transferred to other acct [049–0551]
                      –20

                      1120
                      Appropriations transferred to other acct [049–0180]
                      –24

                      1160
                      Appropriation, discretionary (total)
                      5,990
                      6,023
                      5,362

                      Spending authority from offsetting collections, discretionary:

                      1700
                      Collected
                      69
                      120
                      120

                      1701
                      Change in uncollected payments, Federal sources
                      21

                      1750
                      Spending auth from offsetting collections, disc (total)
                      90
                      120
                      120

                      1900
                      Budget authority (total)
                      6,080
                      6,143
                      5,482

                      1930
                      Total budgetary resources available
                      6,104
                      6,163
                      5,482

                      Memorandum (non-add) entries:

                      1940
                      Unobligated balance expiring
                      –2

                      1941
                      Unexpired unobligated balance, end of year
                      20

                      Change in obligated balance:

                      Unpaid obligations:

                      3000
                      Unpaid obligations, brought forward, Oct 1
                      9,672
                      10,099
                      10,601

                      3010
                      New obligations, unexpired accounts
                      6,082
                      6,163
                      5,482

                      3011
                      Obligations ("upward adjustments"), expired accounts
                      2

                      3020
                      Outlays (gross)
                      –5,586
                      –5,661
                      –5,527

                      3040
                      Recoveries of prior year unpaid obligations, unexpired
                      –13

                      3041
                      Recoveries of prior year unpaid obligations, expired
                      –58

                      3050
                      Unpaid obligations, end of year
                      10,099
                      10,601
                      10,556

                      Uncollected payments:

                      3060
                      Uncollected pymts, Fed sources, brought forward, Oct 1
                      –98
                      –88
                      –88

                      3070
                      Change in uncollected pymts, Fed sources, unexpired
                      –21

                      3071
                      Change in uncollected pymts, Fed sources, expired
                      31

                      3090
                      Uncollected pymts, Fed sources, end of year
                      –88
                      –88
                      –88

                      Memorandum (non-add) entries:

                      3100
                      Obligated balance, start of year
                      9,574
                      10,011
                      10,513

                      3200
                      Obligated balance, end of year
                      10,011
                      10,513
                      10,468

                      Budget authority and outlays, net:

                      Discretionary:

                      4000
                      Budget authority, gross
                      6,080
                      6,143
                      5,482

                      Outlays, gross:

                      4010
                      Outlays from new discretionary authority
                      684
                      1,325
                      1,192

                      4011
                      Outlays from discretionary balances
                      4,902
                      4,336
                      4,335

                      4020
                      Outlays, gross (total)
                      5,586
                      5,661
                      5,527

                      Offsets against gross budget authority and outlays:

                      Offsetting collections (collected) from:

                      4030
                      Federal sources
                      –98
                      –120
                      –120

                      4033
                      Non-Federal sources
                      –1

                      4040
                      Offsets against gross budget authority  and outlays (total)
                      –99
                      –120
                      –120

                      Additional offsets against gross budget authority only:

                      4050
                      Change in uncollected pymts, Fed sources, unexpired
                      –21

                      4052
                      Offsetting collections credited to expired accounts
                      30

                      4060
                      Additional offsets against budget authority only (total)
                      9

                      4070
                      Budget authority, net (discretionary)
                      5,990
                      6,023
                      5,362

                      4080
                      Outlays, net (discretionary)
                      5,487
                      5,541
                      5,407

                      4180
                      Budget authority, net (total)
                      5,990
                      6,023
                      5,362

                      4190
                      Outlays, net (total)
                      5,487
                      5,541
                      5,407

             The Research and Related Activities appropriation enables the United States to provide leadership and promote progress across
                the expanding frontiers of scientific and engineering research and education.

             The major research program activities of NSF are:
             Biological Sciences.—This activity supports understanding how complex living systems function and interact with each other and with non-living
                systems, which has direct impact on issues of national importance related to the economy, food, human welfare, and the environment.
                Research in this activity promotes scientific progress through support of research that crosses scales, from molecules to
                cells through organisms to ecosystems. This activity's investment portfolio includes projects on understanding the fundamental
                characteristics of biological energy systems, the changing dynamics of the biosphere, and infrastructure and research resources
                such as databases, research centers, and observatories, and efforts to broaden participation and develop the next generation
                of biological researchers.

             Computer and Information Science and Engineering.—This activity supports investigator initiated research in all areas of computer and information science and engineering,
                helps develop and maintain cutting-edge national computational and information infrastructure for research and education generally,
                and contributes to the education and training of the next generation of computer and computational engineers.

             Engineering.—Research supported by this activity aims to increase U.S. engineering capability and strength, and focus that capability
                and strength on areas that are relevant to national problems and long-term needs. This activity also includes small business
                innovation research.

             Geosciences.—This activity supports research and associated infrastructure to advance knowledge of the properties and dynamics of the
                planet on which we live. Research includes understanding the causes and implications of earth system dynamics, as well as
                disruptive processes such as earthquakes and storms.

             Mathematical and Physical Sciences.—Research in this activity is directed at increasing understanding of natural laws and phenomena across the astronomical
                sciences, chemistry, materials sciences, mathematical sciences, and physics. Research support is available in multiple modalities
                ranging from multi-user facilities and mid-scale instrumentation to individual investigator awards, from sites for undergraduate
                research experiences to early career faculty development and collaborative and international efforts.

             Social, Behavioral, and Economic Sciences.—This activity supports research, education, and infrastructure in the social, behavioral, cognitive, and economic sciences
                and funds the collection and dissemination of statistics on the science and engineering enterprise.

             Office of International Science and Engineering.—This activity serves as the focal point of international activities at NSF. In addition to strategic funding and co-funding
                that targets catalytic partnerships and workforce-building international research opportunities, OISE advances NSF's global
                science leadership through extensive interactions with U.S. and global counterpart agencies and organizations.

             Office of Polar Programs.—This activity supports Arctic and Antarctic research and operational science support and other related activities for United
                States polar research programs, including the funding to reimburse Federal agencies for logistical and other related activities
                supported by the United States Antarctic Program.

             Integrative Activities.—This activity supports emerging cross disciplinary research efforts and major research instrumentation. This activity also
                provides support for the Science and Technology Policy Institute. The Experimental Program to Stimulate Competitive Research
                broadens participation of States and regions in science and engineering by helping institutions expand their research capacity
                and competitiveness.

             The United States Arctic Research Commission (USARC) is an independent agency, funded through NSF's appropriations. USARC promotes Arctic research and recommends national Arctic
                research policies to guide Federal agencies in developing and implementing their research programs in the Arctic region.

          Object Classification (in millions of dollars)

                      Identification code 049–0100–0–1–999
                      2016 actual
                      2017 est.
                      2018 est.

                      Direct obligations:

                      11.8
                      Personnel compensation: Special personal services payments
                      1
                      50
                      50

                      21.0
                      Travel and transportation of persons
                      15
                      15
                      15

                      25.1
                      Advisory and assistance services
                      123
                      125
                      125

                      25.2
                      Other services from non-Federal sources
                      6
                      6
                      6

                      25.3
                      Other goods and services from Federal sources
                      136
                      80
                      75

                      25.4
                      Operation and maintenance of facilities
                      214
                      275
                      270

                      25.5
                      Research and development contracts
                      5
                      5
                      5

                      31.0
                      Equipment
                      1

                      41.0
                      Grants, subsidies, and contributions
                      5,497
                      5,481
                      4,816

                      99.0
                      Direct obligations
                      5,998
                      6,037
                      5,362

                      99.0
                      Reimbursable obligations
                      84
                      126
                      120

                      99.9
                      Total new obligations, unexpired accounts
                      6,082
                      6,163
                      5,482

          Employment Summary

                      Identification code 049–0100–0–1–999
                      2016 actual
                      2017 est.
                      2018 est.

                      1001
                      Direct civilian full-time equivalent employment
                      3
                      3
                      3

             major research equipment and facilities constructionFor necessary expenses for the acquisition, construction, commissioning, and upgrading of major research equipment, facilities,
                and other such capital assets pursuant to the National Science Foundation Act of 1950 (42 U.S.C. 1861 et seq.), including
                authorized travel, $182,800,000, to remain available until expended.
          Note.—A full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
             budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114–254). The amounts
             included for 2017 reflect the annualized level provided by the continuing resolution.

          Program and Financing (in millions of dollars)

                      Identification code 049–0551–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Obligations by program activity:

                      0001
                      Major Research Equipment and Facilities Construction
                      241
                      237
                      183

                      0900
                      Total new obligations, unexpired accounts (object class 41.0)
                      241
                      237
                      183

                      Budgetary resources:

                      Unobligated balance:

                      1000
                      Unobligated balance brought forward, Oct 1
                      58
                      37

                      1021
                      Recoveries of prior year unpaid obligations
                      2

                      1050
                      Unobligated balance (total)
                      60
                      37

                      Budget authority:

                      Appropriations, discretionary:

                      1100
                      Appropriation
                      200
                      200
                      183

                      1120
                      Appropriations transferred to other acct [049–0180]
                      –2

                      1121
                      Appropriations transferred from other acct [049–0100]
                      20

                      1160
                      Appropriation, discretionary (total)
                      218
                      200
                      183

                      1900
                      Budget authority (total)
                      218
                      200
                      183

                      1930
                      Total budgetary resources available
                      278
                      237
                      183

                      Memorandum (non-add) entries:

                      1941
                      Unexpired unobligated balance, end of year
                      37

                      Change in obligated balance:

                      Unpaid obligations:

                      3000
                      Unpaid obligations, brought forward, Oct 1
                      174
                      240
                      322

                      3010
                      New obligations, unexpired accounts
                      241
                      237
                      183

                      3020
                      Outlays (gross)
                      –173
                      –155
                      –166

                      3040
                      Recoveries of prior year unpaid obligations, unexpired
                      –2

                      3050
                      Unpaid obligations, end of year
                      240
                      322
                      339

                      Memorandum (non-add) entries:

                      3100
                      Obligated balance, start of year
                      174
                      240
                      322

                      3200
                      Obligated balance, end of year
                      240
                      322
                      339

                      Budget authority and outlays, net:

                      Discretionary:

                      4000
                      Budget authority, gross
                      218
                      200
                      183

                      Outlays, gross:

                      4010
                      Outlays from new discretionary authority

                      12
                      11

                      4011
                      Outlays from discretionary balances
                      173
                      143
                      155

                      4020
                      Outlays, gross (total)
                      173
                      155
                      166

                      4180
                      Budget authority, net (total)
                      218
                      200
                      183

                      4190
                      Outlays, net (total)
                      173
                      155
                      166

             The Major Research Equipment and Facilities Construction activity supports the acquisition, construction, and commissioning
                of unique national research platforms and major research facilities and equipment. Performance of each construction project
                is measured against an established baseline at regular intervals and at major milestones.

             Agency operations and award managementFor agency operations and award management necessary in carrying out the National Science Foundation Act of 1950 (42 U.S.C.
                1861 et seq.); services authorized by section 3109 of title 5, United States Code; hire of passenger motor vehicles; uniforms
                or allowances therefor, as authorized by sections 5901 and 5902 of title 5, United States Code; rental of conference rooms
                in the District of Columbia; and reimbursement of the Department of Homeland Security for security guard services; $328,510,000: Provided, That not to exceed $8,280 is for official reception and representation expenses: Provided further, That contracts may be entered into under this heading in fiscal year 2018 for maintenance and operation of facilities and for other services to be provided during the next fiscal year: Provided further, That of the amount provided for costs associated with the acquisition, occupancy, and related costs of new headquarters
                space, not more than $5,000,000 shall remain available until expended.
          Note.—A full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
             budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114–254). The amounts
             included for 2017 reflect the annualized level provided by the continuing resolution.

          Program and Financing (in millions of dollars)

                      Identification code 049–0180–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Obligations by program activity:

                      0001
                      Agency Operations and Award Management
                      351
                      354
                      329

                      0801
                      Agency Operations and Award Management (Reimbursable)
                      5
                      10
                      10

                      0900
                      Total new obligations, unexpired accounts
                      356
                      364
                      339

                      Budgetary resources:

                      Unobligated balance:

                      1000
                      Unobligated balance brought forward, Oct 1
                      18
                      25

                      Budget authority:

                      Appropriations, discretionary:

                      1100
                      Appropriation
                      330
                      329
                      329

                      1121
                      Appropriations transferred from other acct [049–0100]
                      24

                      1121
                      Appropriations transferred from other acct [049–0551]
                      2

                      1121
                      Appropriations transferred from other acct [049–0106]
                      1

                      1160
                      Appropriation, discretionary (total)
                      357
                      329
                      329

                      Spending authority from offsetting collections, discretionary:

                      1700
                      Collected
                      6
                      10
                      10

                      1900
                      Budget authority (total)
                      363
                      339
                      339

                      1930
                      Total budgetary resources available
                      381
                      364
                      339

                      Memorandum (non-add) entries:

                      1941
                      Unexpired unobligated balance, end of year
                      25

                      Change in obligated balance:

                      Unpaid obligations:

                      3000
                      Unpaid obligations, brought forward, Oct 1
                      89
                      116
                      113

                      3010
                      New obligations, unexpired accounts
                      356
                      364
                      339

                      3011
                      Obligations ("upward adjustments"), expired accounts
                      1

                      3020
                      Outlays (gross)
                      –324
                      –367
                      –359

                      3041
                      Recoveries of prior year unpaid obligations, expired
                      –6

                      3050
                      Unpaid obligations, end of year
                      116
                      113
                      93

                      Uncollected payments:

                      3060
                      Uncollected pymts, Fed sources, brought forward, Oct 1
                      –1

                      3071
                      Change in uncollected pymts, Fed sources, expired
                      1

                      Memorandum (non-add) entries:

                      3100
                      Obligated balance, start of year
                      88
                      116
                      113

                      3200
                      Obligated balance, end of year
                      116
                      113
                      93

                      Budget authority and outlays, net:

                      Discretionary:

                      4000
                      Budget authority, gross
                      363
                      339
                      339

                      Outlays, gross:

                      4010
                      Outlays from new discretionary authority
                      263
                      280
                      280

                      4011
                      Outlays from discretionary balances
                      61
                      87
                      79

                      4020
                      Outlays, gross (total)
                      324
                      367
                      359

                      Offsets against gross budget authority and outlays:

                      Offsetting collections (collected) from:

                      4030
                      Federal sources
                      –6
                      –10
                      –10

                      4033
                      Non-Federal sources
                      –1

                      4040
                      Offsets against gross budget authority  and outlays (total)
                      –7
                      –10
                      –10

                      Additional offsets against gross budget authority only:

                      4052
                      Offsetting collections credited to expired accounts
                      1

                      4060
                      Additional offsets against budget authority only (total)
                      1

                      4070
                      Budget authority, net (discretionary)
                      357
                      329
                      329

                      4080
                      Outlays, net (discretionary)
                      317
                      357
                      349

                      4180
                      Budget authority, net (total)
                      357
                      329
                      329

                      4190
                      Outlays, net (total)
                      317
                      357
                      349

             This account funds NSF's scientific, professional, and administrative workforce, the physical and technological infrastructure
                necessary for a productive, safe and secure work environment, and the essential business operations critical to NSF's administrative
                processes.

          Object Classification (in millions of dollars)

                      Identification code 049–0180–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Direct obligations:

                      Personnel compensation:

                      11.1
                      Full-time permanent
                      145
                      146
                      156

                      11.3
                      Other than full-time permanent
                      13
                      14
                      15

                      11.5
                      Other personnel compensation
                      2
                      2
                      3

                      11.9
                      Total personnel compensation
                      160
                      162
                      174

                      12.1
                      Civilian personnel benefits
                      49
                      50
                      52

                      21.0
                      Travel and transportation of persons
                      6
                      6
                      5

                      22.0
                      Transportation of things
                      1
                      1
                      1

                      23.1
                      Rental payments
                      33
                      33
                      27

                      23.2
                      Rental payments to others

                      1

                      23.3
                      Communications, utilities, and miscellaneous charges
                      2
                      2
                      3

                      25.1
                      Advisory and assistance services
                      78
                      77
                      44

                      25.2
                      Other services from non-Federal sources
                      7
                      7
                      8

                      25.3
                      Other goods and services from Federal sources
                      8
                      9
                      7

                      26.0
                      Supplies and materials
                      1
                      1
                      1

                      31.0
                      Equipment
                      6
                      6
                      6

                      99.0
                      Direct obligations
                      351
                      354
                      329

                      99.0
                      Reimbursable obligations
                      5
                      10
                      10

                      99.9
                      Total new obligations, unexpired accounts
                      356
                      364
                      339

          Employment Summary

                      Identification code 049–0180–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      1001
                      Direct civilian full-time equivalent employment
                      1,276
                      1,310
                      1,310

             Office of the national science boardFor necessary expenses (including payment of salaries, authorized travel, hire of passenger motor vehicles, the rental of
                conference rooms in the District of Columbia, and the employment of experts and consultants under section 3109 of title 5,
                United States Code) involved in carrying out section 4 of the National Science Foundation Act of 1950 (42 U.S.C. 1863) and
                Public Law 86–209 (42 U.S.C. 1880 et seq.), $4,370,000: Provided, That not to exceed $2,500 shall be available for official reception and representation expenses.
          Note.—A full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
             budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114–254). The amounts
             included for 2017 reflect the annualized level provided by the continuing resolution.

          Program and Financing (in millions of dollars)

                      Identification code 049–0350–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Obligations by program activity:

                      0001
                      Office of the National Science Board (Direct)
                      4
                      4
                      4

                      Budgetary resources:

                      Budget authority:

                      Appropriations, discretionary:

                      1100
                      Appropriation
                      4
                      4
                      4

                      1930
                      Total budgetary resources available
                      4
                      4
                      4

                      Change in obligated balance:

                      Unpaid obligations:

                      3000
                      Unpaid obligations, brought forward, Oct 1
                      1
                      1
                      1

                      3010
                      New obligations, unexpired accounts
                      4
                      4
                      4

                      3020
                      Outlays (gross)
                      –4
                      –4
                      –4

                      3050
                      Unpaid obligations, end of year
                      1
                      1
                      1

                      Memorandum (non-add) entries:

                      3100
                      Obligated balance, start of year
                      1
                      1
                      1

                      3200
                      Obligated balance, end of year
                      1
                      1
                      1

                      Budget authority and outlays, net:

                      Discretionary:

                      4000
                      Budget authority, gross
                      4
                      4
                      4

                      Outlays, gross:

                      4010
                      Outlays from new discretionary authority
                      3
                      3
                      3

                      4011
                      Outlays from discretionary balances
                      1
                      1
                      1

                      4020
                      Outlays, gross (total)
                      4
                      4
                      4

                      4180
                      Budget authority, net (total)
                      4
                      4
                      4

                      4190
                      Outlays, net (total)
                      4
                      4
                      4

             This appropriation provides policy-making and related responsibilities for NSF and provides guidance on significant national
                policy issues in science and engineering research and education, as required by law.

          Object Classification (in millions of dollars)

                      Identification code 049–0350–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Direct obligations:

                      11.1
                      Personnel compensation: Full-time permanent
                      2
                      2
                      2

                      12.1
                      Civilian personnel benefits
                      1
                      1
                      1

                      25.1
                      Advisory and assistance services
                      1
                      1
                      1

                      99.9
                      Total new obligations, unexpired accounts
                      4
                      4
                      4

          Employment Summary

                      Identification code 049–0350–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      1001
                      Direct civilian full-time equivalent employment
                      18
                      18
                      19

             Office of inspector generalFor necessary expenses of the Office of Inspector General as authorized by the Inspector General Act of 1978, $15,008,000, of which $400,000 shall remain available until September 30, 2019.
          Note.—A full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
             budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114–254). The amounts
             included for 2017 reflect the annualized level provided by the continuing resolution.

          Program and Financing (in millions of dollars)

                      Identification code 049–0300–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Obligations by program activity:

                      0001
                      Office of Inspector General (Direct)
                      15
                      15
                      15

                      Budgetary resources:

                      Budget authority:

                      Appropriations, discretionary:

                      1100
                      Appropriation
                      15
                      15
                      15

                      1930
                      Total budgetary resources available
                      15
                      15
                      15

                      Change in obligated balance:

                      Unpaid obligations:

                      3000
                      Unpaid obligations, brought forward, Oct 1
                      2
                      4
                      4

                      3010
                      New obligations, unexpired accounts
                      15
                      15
                      15

                      3011
                      Obligations ("upward adjustments"), expired accounts
                      1

                      3020
                      Outlays (gross)
                      –14
                      –15
                      –15

                      3050
                      Unpaid obligations, end of year
                      4
                      4
                      4

                      Memorandum (non-add) entries:

                      3100
                      Obligated balance, start of year
                      2
                      4
                      4

                      3200
                      Obligated balance, end of year
                      4
                      4
                      4

                      Budget authority and outlays, net:

                      Discretionary:

                      4000
                      Budget authority, gross
                      15
                      15
                      15

                      Outlays, gross:

                      4010
                      Outlays from new discretionary authority
                      13
                      12
                      12

                      4011
                      Outlays from discretionary balances
                      1
                      3
                      3

                      4020
                      Outlays, gross (total)
                      14
                      15
                      15

                      4180
                      Budget authority, net (total)
                      15
                      15
                      15

                      4190
                      Outlays, net (total)
                      14
                      15
                      15

             This appropriation provides agency-wide audit and investigative functions to identify and correct management and administrative
                deficiencies which create conditions for existing or potential instances of fraud, waste, and mismanagement consistent with
                the Inspector General Act of 1978, as amended (5 U.S.C. App. 3).

          Object Classification (in millions of dollars)

                      Identification code 049–0300–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Direct obligations:

                      11.1
                      Personnel compensation: Full-time permanent
                      9
                      9
                      9

                      12.1
                      Civilian personnel benefits
                      3
                      3
                      3

                      25.2
                      Other services from non-Federal sources
                      3
                      3
                      3

                      99.9
                      Total new obligations, unexpired accounts
                      15
                      15
                      15

          Employment Summary

                      Identification code 049–0300–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      1001
                      Direct civilian full-time equivalent employment
                      68
                      68
                      69

             Education and human resourcesFor necessary expenses in carrying out science, mathematics and engineering education and human resources programs and activities
                pursuant to the National Science Foundation Act of 1950 (42 U.S.C. 1861 et seq.), including services as authorized by section
                3109 of title 5, United States Code, authorized travel, and rental of conference rooms in the District of Columbia, $760,550,000, to remain available until September 30, 2019.
          Note.—A full-year 2017 appropriation for this account was not enacted at the time the budget was prepared; therefore, the
             budget assumes this account is operating under the Further Continuing Appropriations Act, 2017 (P.L. 114–254). The amounts
             included for 2017 reflect the annualized level provided by the continuing resolution.

          Program and Financing (in millions of dollars)

                      Identification code 049–0106–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Obligations by program activity:

                      0001
                      Education and Human Resources
                      884
                      882
                      761

                      0100
                      Total Disc obligations
                      884
                      882
                      761

                      0302
                      Low income scholarship program
                      139
                      129
                      75

                      0303
                      ITEST grants for Mathematics, Science, or Engineering enrichment courses
                      46
                      47
                      25

                      0391
                      Total Mandatory Obligations (H-1B)
                      185
                      176
                      100

                      0799
                      Total direct obligations
                      1,069
                      1,058
                      861

                      0801
                      Education and Human Resources (Reimbursable)
                      5
                      15
                      15

                      0900
                      Total new obligations, unexpired accounts
                      1,074
                      1,073
                      876

                      Budgetary resources:

                      Unobligated balance:

                      1000
                      Unobligated balance brought forward, Oct 1
                      121
                      80

                      1001
                      Discretionary unobligated balance brought fwd, Oct 1
                      5
                      5

                      1021
                      Recoveries of prior year unpaid obligations
                      12

                      1050
                      Unobligated balance (total)
                      133
                      80

                      Budget authority:

                      Appropriations, discretionary:

                      1100
                      Appropriation
                      880
                      878
                      761

                      1120
                      Appropriations transferred to other acct [049–0180]
                      –1

                      1160
                      Appropriation, discretionary (total)
                      879
                      878
                      761

                      Appropriations, mandatory:

                      1201
                      Appropriation (special or trust fund)
                      139
                      100
                      100

                      1203
                      Appropriation (previously unavailable)
                      7
                      7
                      7

                      1232
                      Appropriations and/or unobligated balance of appropriations temporarily reduced
                      –7
                      –7

                      1260
                      Appropriations, mandatory (total)
                      139
                      100
                      107

                      Spending authority from offsetting collections, discretionary:

                      1700
                      Collected
                      2
                      15
                      15

                      1701
                      Change in uncollected payments, Federal sources
                      3

                      1750
                      Spending auth from offsetting collections, disc (total)
                      5
                      15
                      15

                      1900
                      Budget authority (total)
                      1,023
                      993
                      883

                      1930
                      Total budgetary resources available
                      1,156
                      1,073
                      883

                      Memorandum (non-add) entries:

                      1940
                      Unobligated balance expiring
                      –2

                      1941
                      Unexpired unobligated balance, end of year
                      80

                      7

                      Change in obligated balance:

                      Unpaid obligations:

                      3000
                      Unpaid obligations, brought forward, Oct 1
                      2,104
                      2,242
                      2,340

                      3010
                      New obligations, unexpired accounts
                      1,074
                      1,073
                      876

                      3011
                      Obligations ("upward adjustments"), expired accounts
                      1

                      3020
                      Outlays (gross)
                      –911
                      –975
                      –1,001

                      3040
                      Recoveries of prior year unpaid obligations, unexpired
                      –12

                      3041
                      Recoveries of prior year unpaid obligations, expired
                      –14

                      3050
                      Unpaid obligations, end of year
                      2,242
                      2,340
                      2,215

                      Uncollected payments:

                      3060
                      Uncollected pymts, Fed sources, brought forward, Oct 1
                      –5
                      –7
                      –7

                      3070
                      Change in uncollected pymts, Fed sources, unexpired
                      –3

                      3071
                      Change in uncollected pymts, Fed sources, expired
                      1

                      3090
                      Uncollected pymts, Fed sources, end of year
                      –7
                      –7
                      –7

                      Memorandum (non-add) entries:

                      3100
                      Obligated balance, start of year
                      2,099
                      2,235
                      2,333

                      3200
                      Obligated balance, end of year
                      2,235
                      2,333
                      2,208

                      Budget authority and outlays, net:

                      Discretionary:

                      4000
                      Budget authority, gross
                      884
                      893
                      776

                      Outlays, gross:

                      4010
                      Outlays from new discretionary authority
                      110
                      138
                      122

                      4011
                      Outlays from discretionary balances
                      706
                      695
                      698

                      4020
                      Outlays, gross (total)
                      816
                      833
                      820

                      Offsets against gross budget authority and outlays:

                      Offsetting collections (collected) from:

                      4030
                      Federal sources
                      –2
                      –15
                      –15

                      4033
                      Non-Federal sources
                      –1

                      4040
                      Offsets against gross budget authority  and outlays (total)
                      –3
                      –15
                      –15

                      Additional offsets against gross budget authority only:

                      4050
                      Change in uncollected pymts, Fed sources, unexpired
                      –3

                      4052
                      Offsetting collections credited to expired accounts
                      1

                      4060
                      Additional offsets against budget authority only (total)
                      –2

                      4070
                      Budget authority, net (discretionary)
                      879
                      878
                      761

                      4080
                      Outlays, net (discretionary)
                      813
                      818
                      805

                      Mandatory:

                      4090
                      Budget authority, gross
                      139
                      100
                      107

                      Outlays, gross:

                      4100
                      Outlays from new mandatory authority

                      11
                      12

                      4101
                      Outlays from mandatory balances
                      95
                      131
                      169

                      4110
                      Outlays, gross (total)
                      95
                      142
                      181

                      4180
                      Budget authority, net (total)
                      1,018
                      978
                      868

                      4190
                      Outlays, net (total)
                      908
                      960
                      986

             The Education and Human Resources (EHR) appropriation funds and manages a comprehensive set of programs that further NSF's
                goals of ensuring a diverse, globally competitive U.S. science, technology, engineering, and mathematics (STEM) workforce,
                as well as a scientifically literate population. To advance those goals, EHR collaborates with other NSF research units, federal
                agencies, and promotes public-private partnerships. EHR supports research on STEM teaching and learning to provide the evidence
                base for improvements in education at all levels in the STEM disciplines. Supporting development and effective implementation
                of new learning technologies is also a priority. EHR's pre-K-12 education-research programs, for example, develop and test
                new instruction materials for students and teachers, which incorporate the latest advances in teaching, learning, and education
                technologies. STEM teacher-education opportunities occur throughout the full continuum, from pre-service and in-service, through
                life-long learning. Research programs at the undergraduate level improve curricula, strengthen laboratory courses, enhance
                faculty effectiveness and lead education reforms in STEM disciplines. Advanced technological education programs strengthen
                student preparation for the high-technology workforce. Support of graduate-level STEM education primarily includes fellowships
                and traineeships to sustain U.S. leadership in global science and technology. All EHR programs aim to broaden participation
                of groups underrepresented in STEM fields by, for example, improving infrastructure and academic programs at minority-serving
                institutions.  EHR activities also include programs supported by H-1B non-immigrant visa fees, which provide undergraduate
                and graduate scholarships in STEM disciplines, improve educational opportunities for students, and provide research opportunities
                for STEM teachers and students.

          Object Classification (in millions of dollars)

                      Identification code 049–0106–0–1–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Direct obligations:

                      21.0
                      Travel and transportation of persons
                      2
                      3
                      3

                      25.1
                      Advisory and assistance services
                      22
                      24
                      24

                      25.2
                      Other services from non-Federal sources
                      4
                      4
                      4

                      41.0
                      Grants, subsidies, and contributions
                      1,041
                      1,027
                      830

                      99.0
                      Direct obligations
                      1,069
                      1,058
                      861

                      99.0
                      Reimbursable obligations
                      5
                      15
                      15

                      99.9
                      Total new obligations, unexpired accounts
                      1,074
                      1,073
                      876

          Trust Funds
             Donations

             Special and Trust Fund Receipts (in millions of dollars)

                      Identification code 049–8960–0–7–251
                      2016 actual
                      2017 est.
                      2018 est.

                      0100
                      Balance, start of year

                      Receipts:

                      Current law:

                      1130
                      Donations, National Science Foundation
                      24
                      35
                      35

                      2000
                      Total: Balances and receipts
                      24
                      35
                      35

                      Appropriations:

                      Current law:

                      2101
                      Donations
                      –24
                      –35
                      –35

                      5099
                      Balance, end of year

          Program and Financing (in millions of dollars)

                      Identification code 049–8960–0–7–251
                      2016 actual
                      2017 est.
                      2018 est.

                      Obligations by program activity:

                      0001
                      Atacama Large Millimeter Array
                      3
                      3
                      1

                      0002
                      Gemini Telescope
                      9
                      21
                      11

                      0003
                      B&M Gates Foundation
                      1
                      4
                      1

                      0004
                      International Ocean Drilling
                      17
                      30
                      22

                      0900
                      Total new obligations, unexpired accounts (object class 41.0)
                      30
                      58
                      35

                      Budgetary resources:

                      Unobligated balance:

                      1000
                      Unobligated balance brought forward, Oct 1
                      29
                      23

                      Budget authority:

                      Appropriations, mandatory:

                      1201
                      Appropriation (special or trust fund)
                      24
                      35
                      35

                      1930
                      Total budgetary resources available
                      53
                      58
                      35

                      Memorandum (non-add) entries:

                      1941
                      Unexpired unobligated balance, end of year
                      23

                      Change in obligated balance:

                      Unpaid obligations:

                      3000
                      Unpaid obligations, brought forward, Oct 1
                      36
                      38
                      65

                      3010
                      New obligations, unexpired accounts
                      30
                      58
                      35

                      3020
                      Outlays (gross)
                      –28
                      –31
                      –33

                      3050
                      Unpaid obligations, end of year
                      38
                      65
                      67

                      Memorandum (non-add) entries:

                      3100
                      Obligated balance, start of year
                      36
                      38
                      65

                      3200
                      Obligated balance, end of year
                      38
                      65
                      67

                      Budget authority and outlays, net:

                      Mandatory:

                      4090
                      Budget authority, gross
                      24
                      35
                      35

                      Outlays, gross:

                      4100
                      Outlays from new mandatory authority

                      21
                      21

                      4101
                      Outlays from mandatory balances
                      28
                      10
                      12

                      4110
                      Outlays, gross (total)
                      28
                      31
                      33

                      4180
                      Budget authority, net (total)
                      24
                      35
                      35

                      4190
                      Outlays, net (total)
                      28
                      31
                      33

             This account consists of contributions from foreign governments, organizations, and individuals to fund various cooperative
                efforts in science, research, and education. These efforts include major international projects, such as operation of the
                Gemini telescopes, and the NSF ocean discovery program. Other smaller activities supported include cooperative research, joint
                seminars, exchange of senior scientists, short-term research development visits, international conferences, and support for
                certain special functions of NSF and the National Science Board. These funds are not otherwise available.

             Administrative Provision

             Administrative provisionNot to exceed 5 percent of any appropriation made available for the current fiscal year for the National Science Foundation
                in this Act may be transferred between such appropriations, but no such appropriation shall be increased by more than 10 percent
                by any such transfers. Any transfer pursuant to this section 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.

             General and Administrative Provisions

             GENERAL FUND RECEIPT ACCOUNTS

             (in millions of dollars)

                      2016 actual
                      2017 est.
                      2018 est.

                      Offsetting receipts from the public:

                      049–320000
                      Collections of Receivables from Canceled Accounts
                      1
                      1
                      1

                      049–322000
                      All Other General Fund Proprietary Receipts Including Budget Clearing Accounts
                      4
                      2
                      2

                      General Fund Offsetting receipts from the public
                      5
                      3
                      3