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

                         THE BUDGET FOR FISCAL YEAR 2004

    [[Page 955]]

                  NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

                                  Federal Funds

    General and special funds:

                      Science, Aeronautics and Exploration

                          (including transfer of funds)

        For necessary expenses, not otherwise provided for, in the conduct
    and support of science, aeronautics and exploration research and
    development activities, including research, development, operations,
    support and services; maintenance; 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; environmental
    compliance and restoration; space flight, spacecraft control and
    communications activities including operations, production, and
    services; program management; personnel and related costs, including
    uniforms or allowances therefor, as authorized by 5 U.S.C. 5901-5902;
    travel expenses; purchase and hire of passenger motor vehicles; not to
    exceed $24,000 for official reception and representation expenses; and
    purchase, lease, charter, maintenance and operation of mission and
    administrative aircraft, $7,660,900,000, to remain available until
    September 30, 2005, of which amounts as determined by the Administrator
    for salaries and benefits; training, travel and awards; facility and
    related costs; information technology services; science, engineering,
    fabricating and testing services; and other administrative services may
    be transferred to ``Space Flight capabilities'' in accordance with
    section 312(b) of the National Aeronautics and Space Act of 1958, as
    amended by Public Law 106-377.

        Note.--A regular 2003 appropriation for this account had not been
    enacted at the time the budget was prepared; therefore, this account is
    operating under a continuing resolution (P.L. 107-229, as amended). The
    amounts included for 2003 in this budget reflect the Administration's
    2003 policy proposals.

                   Program and Financing (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0114-0-1-999      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

        Obligations by program activity:
    00.01 Space science.....................                               3,809
    00.02 Earth science.....................                               1,475
    00.03 Biological & physical research....                                 924
    00.04 Aeronautics.......................                                 907
    00.05 Education programs................                                 161
    09.01 Reimbursable program..............                                 617
                                               ---------   ---------  ----------
    10.00   Total new obligations...........                               7,893
    ----------------------------------------------------------------------------

        Budgetary resources available for obligation:
    22.00 New budget authority (gross)......                               8,278
    23.95 Total new obligations.............                              -7,893
    24.40 Unobligated balance carried
            forward, end of year............                                 385
    ----------------------------------------------------------------------------

        New budget authority (gross), detail:
          Discretionary:

    40.00   Appropriation...................                               7,661
    68.00 Spending authority from offsetting
            collections: Offsetting
            collections (cash)..............                                 617
                                               ---------   ---------  ----------
    70.00   Total new budget authority
              (gross).......................                               8,278
    ----------------------------------------------------------------------------

        Change in obligated balances:
    73.10 Total new obligations.............                               7,893
    73.20 Total outlays (gross).............                              -4,602
    74.40 Obligated balance, end of year....                               3,291
    ----------------------------------------------------------------------------

        Outlays (gross), detail:
    86.90 Outlays from new discretionary
            authority.......................                               4,602
    ----------------------------------------------------------------------------

        Offsets:
          Against gross budget authority and outlays:

            Offsetting collections (cash)
                from:
    88.00     Federal sources...............                                -540
    88.40     Non-Federal sources...........                                 -77
                                               ---------   ---------  ----------
    88.90       Total, offsetting
                  collections (cash)........                                -617
    ----------------------------------------------------------------------------

        Net budget authority and outlays:
    89.00 Budget authority..................                               7,661
    90.00 Outlays...........................                               3,985
    ----------------------------------------------------------------------------

    Additional net budget authority and outlays to cover cost of fully accruing
                                     retirement:
    99.00 Budget authority..................                                  63
    99.01 Outlays...........................                                  63
    ---------------------------------------------------------------------------

        This appropriation provides for the full costs associated with the
    Science, Aeronautics and Exploration (SAE) activities of the Agency,
    which consist of the Space Science, Earth Science, Biological and
    Physical Research, Aeronautics, and Education Programs. The full costs
    include both the direct and the indirect costs supporting these
    programs, and provide for all of the research; development; operations;
    salaries and related expenses; design, repair, rehabilitation, and
    modification of facilities and construction of new facilities;
    maintenance and operation of existing facilities; and other general and
    administrative activities supporting Science, Aeronautics and
    Exploration programs. This account includes activities that were
    previously funded in the Science, Aeronautics, and Technology account.

    Performance Objectives

        Detailed performance goals associated with the Science, Aeronautics
    and Exploration (SAE) activities are addressed in NASA's FY 2004
    President's Budget. The SAE activities include: Space Science, Earth
    Science, Biological and Physical Research, Aeronautics, and Education
    Programs; and are described below.

        Space Science.--NASA's Space Science program seeks to answer
    fundamental questions concerning: the galaxy and the universe; the
    connections among the Sun, Earth and heliosphere; the origin and
    evolution of planetary systems; and the origin and distribution of life
    in the universe. The Space Science program is comprised of many research
    and development activities, including flight missions, major space-based
    facilities, technology and mission development programs, and research
    and data analysis.

        NASA will proceed in the development of several major missions,
    including the Stratospheric Observatory for Infrared Astronomy (SOFIA),
    the Solar Terrestrial Relations Observatory (STEREO), the Gamma-ray
    Large-Area Space Telescope (GLAST), the Solar Dynamics Observatory (SDO)
    and the final Hubble Space Telescope (HST) Servicing Mission. SOFIA
    development will continue in preparation for a spring 2005 first science
    flight. STEREO, scheduled for launch in November 2005, will advance our
    understanding of the Sun's corona (its outer ``atmosphere''), the origin
    of huge eruptions of solar material known as coronal mass ejections
    (CMEs), and the interaction between CMEs and the Earth's environment.
    GLAST, which will investigate the high-energy world of black holes and
    neutron stars, is on track for launch in the fall of 2006. SDO will
    increase our understanding of the Sun's magnetic field, solar wind,
    energetic particles, and variations in solar irradiance. Development of
    SDO begins in 2004. During the final HST Servicing Mission, also
    scheduled for 2004, astronauts will install the Cosmic Origins
    Spectrograph (COS) and Wide Field Camera 3 (WFC3) to extend the
    telescope's operational life to 2010. Development activities supporting
    several key missions in the payloads program, such as Solar-B and
    Herschel, will also continue in 2004.

    [[Page 956]]

        Support for the Explorer and New Millennium programs will continue.
    Small- and Medium-class Explorer missions provide frequent flight
    opportunities for a diverse array of world-class scientific
    investigations--recently selected projects will examine diffuse
    intergalactic radiation and ice in Earth's mesosphere. Another Small
    Explorers mission, the second of the Two Wide-angle Imaging Neutral-atom
    Spectrometers (TWINS), will be launched in 2004 to provide stereoscopic
    images of the Earth's magnetosphere for the first time. The New
    Millennium Program provides flight demonstrations of critical new
    technologies that will reduce the mass and cost of future science and
    spacecraft subsystems, while maintaining or improving mission
    capabilities. Several of these innovative Space Technology projects (ST-
    5, 6, and 7) are scheduled for launch from 2004 through 2006.

        The Discovery Program provides frequent access to space for small
    planetary missions that will perform high-quality scientific
    investigations. Both Deep Impact, the first space mission to probe
    beneath the surface of a comet and reveal the secrets of its interior,
    and the Mercury Surface, Space Environment, Geochemistry and Ranging
    (MESSENGER) mission to orbit Mercury are scheduled for launch in 2004.
    The Kepler Mission to explore the structure and diversity of planetary
    systems, with a special emphasis on detecting Earth-size planets in the
    habitable zones around other stars, will be in development in 2004, as
    will the Dawn mission to study the asteroids 1 Ceres and 4 Vesta.

        Focused technology programs are included in each of the five major
    Space Science themes: Astronomical Search for Origins, Structure and
    Evolution of the Universe, Solar System Exploration, Mars Exploration
    Program, and Sun-Earth Connection. Funding is provided for early
    technology development in support of strategic missions, such as the
    James Webb (formerly ``Next Generation'') Space Telescope and the Living
    With a Star Program. The goal is to retire technology risk early in a
    mission's lifecycle, before proceeding to full-scale development. Funds
    are also provided to continue ongoing operations of approximately thirty
    spacecraft, and to conduct robust research and analysis, data analysis,
    and suborbital research campaigns.

        The budget request for 2004 features two new initiatives: Optical
    Communication and the Jupiter Icy Moons Tour. Optical Communication
    seeks to use lasers to improve by many orders of magnitude the
    communication data rate for deep space missions. Current limitations on
    data transfer using radio constrain scientific discovery and public
    participation in our space missions. The Jupiter Icy Moons Tour will
    explore the icy moons of Jupiter (Europa, Ganymede, and Callisto),
    providing a full characterization of the moons through orbital
    reconnaissance. This will set the stage for the next phase of Jovian
    exploration, to include surface chemical and organic investigations, and
    a probe to explore the sub-surface environment. This mission will be
    part of Project Prometheus, an effort started last year to demonstrate
    nuclear power and nuclear electric propulsion technology that can open
    the solar system to detailed research and exploration.

        Earth Science.--NASA's Earth Science Program contributes to the
    Agency's mission to understand and protect our home planet by developing
    a scientific understanding of the Earth system and its response to both
    natural and human-induced changes to enable improved prediction of
    climate, weather and natural hazards for present and future generations.

        The Earth Science Program seeks to answer a question of fundamental
    importance to science and society: How is the Earth system changing, and
    what are the consequences for life on Earth? In pursuit of this
    question, NASA has pioneered the interdisciplinary research field of
    Earth System Science, which recognizes that the Earth's land surface,
    oceans, atmosphere, ice sheets, and life itself all interact in a highly
    dynamic system. Employing a constellation of over 15 Earth observing
    satellites routinely making measurements with over 80 remote sensing
    instruments, NASA has made it an Agency goal to understand the Earth
    system and apply Earth System Science to improve prediction of climate,
    weather, and natural hazards. Within this goal, we have defined two
    strategic objectives: (1) Science--observe, analyze, and model the Earth
    system to discover how it is changing and the consequences for life on
    Earth; and (2) Applications--expand and accelerate the realization of
    economic and societal benefits from Earth science information and
    technology; with Earth System Science and Earth Science Applications as
    the corresponding budget themes.

        Within Earth System Science, NASA works with the science community
    to identify questions on the frontiers of science that have profound
    societal importance, and to which remote sensing of the Earth can make a
    defining contribution. These science questions become the foundation of
    a research strategy, which defines requirements for scientific
    observations, and a roadmap for combining the technology, observations,
    modeling efforts, basic research, and partnerships needed to answer the
    questions over time. We are responding to the scientific community's
    call for comprehensive observation of the Earth's major components using
    the Earth Observing System (EOS). NASA uses the global view from space
    to contribute to the U.S. Government's Global Change Research Program
    (USGCRP) and Climate Change Research Initiative (CCRI). We have
    identified key areas of investment that will enable us to do more, and
    do it more rapidly, with a targeted investment in observations,
    research, and modeling of uncertainties surrounding the forces acting on
    the climate system.

        Within Earth Science Applications, NASA enables the application of
    information and knowledge gained through partnerships with other federal
    agencies. These partnerships focus on innovative approaches for using
    Earth science information and knowledge to provide decision support
    information. This information supports myriad operational applications,
    as well as policy discussions, and is used to address a variety of
    national priorities, including economic issues and homeland security.
    Through the Earth Science Applications program, NASA is working with
    organizations with the appropriate information infrastructure to apply
    NASA's Earth science results to help manage coastal environments,
    agriculture and water resources, and aviation safety; monitor air and
    water quality, forest fires, and the impacts of infectious diseases and
    invasive species; and conduct hurricane forecasting and disaster relief
    efforts. The potential socioeconomic benefits of these applications are
    significant.

        Biological and Physical Research.--NASA's Biological and Physical
    Research (BPR) Enterprise addresses the opportunities and challenges of
    space flight through basic and applied research on the ground and in
    space. The program exploits the rich opportunities of space flight in
    pursuit of answers to a broad set of scientific questions that support
    NASA's goals to explore the fundamental principles of physics, chemistry
    and biology through research in the unique natural laboratory of space,
    and to extend the duration and boundaries of human space flight to
    create new opportunities for scientific exploration and discovery. The
    major outcomes of this research include fundamental scientific progress
    and safer more efficient space travel. BPR includes three themes:
    Biological Sciences Research, Physical Sciences Research, and Research
    Partnerships and Flight Support.

        Physical Science Research supports basic and applied research that
    takes advantage of the unique environment of space to expand our
    understanding of the fundamental laws

    [[Page 957]]

    of nature. The theme supports NASA's mission to explore the universe and
    search for life both through applied research to improve safety and
    performance and through exploratory research on the fundamental laws of
    nature. The theme supports NASA's mission to understand and protect our
    home planet by producing research results that have direct application
    to industrial products and processes.

        Biological Science Research conducts basic and applied research to
    enable and support a safe human presence in space in support of NASA's
    mission to explore the universe and search for life. This theme includes
    a basic biology research component that pursues fundamental biological
    research questions as an integral element of understanding how space
    affects life at all levels, from genes to cells to organisms. This theme
    supports research to define and control the physiological and
    psychological challenges to human health associated with space flight,
    including research on radiation risks, risks associated with
    microgravity, and risks associated with prolonged isolation and small
    group dynamics. The theme also includes research and development to
    improve the reliability and performance of life support systems and
    spacecraft crew interfaces.

        The FY 2004 budget request reflects the results of the NASA Advisory
    Council's Research Maximization and Prioritization (ReMaP) Task Force
    recommendations. The request expands planned biomedical research and
    countermeasures experiments, including a new Human Research Initiative;
    initiates a limited flight program in high priority advanced human
    support technology; places additional emphasis on physical science
    research, including applications to human space flight; and reinstates
    funding for plant and animal habitats for planned centrifuge research on
    the International Space Station (ISS).

        Implementing ReMaP in the FY 2004 budget is a crucial first step in
    a longer running planning and prioritization process. In the near term,
    research and facility development are aligned with the ReMaP priorities
    in the FY 04 Budget. At the same time, BPR has responded to NASA's new
    strategic plan by adopting a 5-year direction consistent with overall
    agency vision, mission and goals. This direction has identified major
    research thrusts, consistent with the agency strategic plan and the
    management changes required to support these thrusts.

        Aeronautics.--Aeronautics Technology addresses the Agency's goal to
    ``enable a safer, more secure, efficient, and environmentally friendly
    air transportation system'' by performing research and technology to:
    decrease the aircraft fatal accident rate and the vulnerability of the
    air transportation system to threats; protect the local and global
    environmental quality by reducing aircraft noise and emissions; and
    enable more people and goods to travel faster and farther with fewer
    delays. NASA works closely with the Federal Aviation Administration
    (FAA) in setting these goals. Additionally, in support of the Agency
    goal ``to create a more secure world and improve the quality of life by
    investing in technologies and to collaborate with other agencies,
    industry and academia,'' Aeronautics Technology supports national
    security through aeronautical partnerships with the Department of
    Defense and other government agencies. Finally, this theme enables
    pioneering aeronautical concepts to support earth and space science
    missions and new commercial markets in support of the Agency goal to
    ``enable revolutionary capabilities through new technology.''

        Three research and technology programs compose the Aeronautics
    Technology theme. The Aviation Safety and Security Program develops and
    demonstrates technologies and strategies for the prevention,
    intervention, and mitigation of factors contributing to aviation
    accidents. This theme gives highest priority to the factors that are
    most strongly tied to accident and fatality rates, as well as those that
    address multiple classes of hazards, including hazardous weather,
    controlled flight into terrain, accidents and incidents caused by human
    error, and mechanical or software malfunctions. The program develops and
    integrates technologies needed to build a safer aviation system, to
    support pilots and air traffic controllers, and to provide information
    to assess situations and trends that might indicate unsafe conditions
    before accidents occur. NASA develops, validates and transfers these
    advanced concepts, technologies and procedures through a partnership
    with the Federal Aviation Administration (FAA) and in cooperation with
    the U.S. aeronautics industry.

        To enable increased capacity and mobility of the nation's air
    transportation system, the Airspace Systems program develops and
    demonstrates technology for revolutionary improvements to, and
    modernization of, the air traffic management (ATM) system. The
    technology enables new ATM decision support tools and airspace concepts
    as well as new systems for aircraft whose operation can take advantage
    of the improved, modern ATM system. The resultant benefit to the
    traveling public will be reduced flight delays and shorter doorstep-to-
    destination times. Users of the technologies that result from this
    program include: the FAA, state and local airport authorities and their
    systems suppliers, existing and new commercial and personal aviation
    operators, and the aircraft developers and their system suppliers. This
    program directly supports the FAA's ``Free Flight'' activities and the
    Operational Evolution Plan (OEP) and maintains pace with a continually
    evolving technical environment.

        The Vehicle Systems program develops breakthrough technologies to
    enable new capability and functionality in future aircraft. Technologies
    from this program are then further developed in the Aviation Safety and
    Security Program and the Airspace Systems program to reduce aircraft
    emissions and noise, enable more people and goods to travel faster and
    farther, and to increase air system safety and security. The Vehicle
    Systems program also supports development of common advanced air vehicle
    technologies with the DOD.

        Education.--Since its establishment, NASA has served the Nation's
    educational interests by sharing its unique mission, facilities,
    personnel, and research results with inquisitive minds throughout the
    United States and around the globe. The results have opened the minds of
    people of all ages, races and background to the universe, new
    technologies and expanded possibilities. As the 21st century begins, and
    new national challenges are before us, it is appropriate that NASA re-
    examine and re-energize the Agency's education mission and organization.
    To that end, a NASA Education Office has been established as a new,
    mission-focused organization that will aggregate NASA's education
    programs, management and staff. This Office will position NASA to more
    effectively leverage its resources to encourage student interest in
    math, science, and technology education--to inspire the next generation
    of explorers, as only NASA can.

        The NASA Education Office will work toward achieving four
    priorities: (1) motivating K-16+ students to pursue careers in science,
    math and engineering; (2) providing educators with unique teaching tools
    and compelling teaching experiences; (3) seeking to ensure that we are
    investing the taxpayer's resources wisely; and (4) engaging minority and
    underrepresented students, educators and researchers in NASA's education
    program. An important and visible component of the NASA Education Office
    is the Minority University Research and Education Program, insuring that
    minority education programs are a high priority for the Agency.

                   Object Classification (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0114-0-1-999      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

          Direct obligations:

            Personnel compensation:
    11.1      Full-time permanent...........                                 789

    [[Page 958]]

    11.3      Other than full-time permanent                                  16
    11.5      Other personnel compensation..                                  15
    11.8      Special personal services
                payments....................                                   8
                                               ---------   ---------  ----------
    11.9        Total personnel compensation                                 828
    12.1    Civilian personnel benefits.....                                 199
    21.0    Travel and transportation of
              persons.......................                                  32
    22.0    Transportation of things........                                   6
    23.1    Rental payments to GSA..........                                  14
    23.3    Communications, utilities, and
              miscellaneous charges.........                                  73
    24.0    Printing and reproduction.......                                   4
    25.1    Advisory and assistance services                                 134
    25.2    Other services..................                                 671
    25.3    Other purchases of goods and
              services from Government
              accounts......................                                 261
    25.4    Operation and maintenance of
              facilities....................                                 238
    25.5    Research and development
              contracts.....................                               3,209
    25.7    Operation and maintenance of
              equipment.....................                                  81
    26.0    Supplies and materials..........                                 154
    31.0    Equipment.......................                                 101
    32.0    Land and structures.............                                 186
    41.0    Grants, subsidies, and
              contributions.................                               1,085
                                               ---------   ---------  ----------
    99.0      Direct obligations............                               7,276
    99.0  Reimbursable obligations..........                                 617
                                               ---------   ---------  ----------
    99.9    Total new obligations...........                               7,893
    ---------------------------------------------------------------------------

                                  Personnel Summary

    ----------------------------------------------------------------------------
    Identification code 80-0114-0-1-999      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------
        Direct:
          Total compensable workyears:

    1001    Civilian full-time equivalent
              employment....................                               9,184
        Reimbursable:
    2001  Total compensable workyears:
            Civilian full-time equivalent
            employment......................                                  63
    ---------------------------------------------------------------------------

                            Space Flight Capabilities

                          (including transfer of funds)

        For necessary expenses, not otherwise provided for, in the conduct
    and support of space flight capabilities research and development
    activities, including research, development, operations, support and
    services; maintenance; 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 acquisition or condemnation of real
    property, as authorized by law; environmental compliance and
    restoration; space flight, spacecraft control and communications
    activities including operations, production, and services; program
    management; personnel and related costs, including uniforms or
    allowances therefor, as authorized by 5 U.S.C. 5901-5902; travel
    expenses; purchase and hire of passenger motor vehicles; not to exceed
    $24,000 for official reception and representation expenses; and
    purchase, lease, charter, maintenance and operation of mission and
    administrative aircraft, $7,782,100,000, to remain available until
    September 30, 2005, of which amounts as determined by the Administrator
    for salaries and benefits; training, travel and awards; facility and
    related costs; information technology services; science, engineering,
    fabricating and testing services; and other administrative services may
    be transferred to ``Science, aeronautics and exploration'' in accordance
    with section 312(b) of the National Aeronautics and Space Act of 1958,
    as amended by Public Law 106-377.

        Note.--A regular 2003 appropriation for this account had not been
    enacted at the time the budget was prepared; therefore, this account is
    operating under a continuing resolution (P.L. 107-229, as amended). The
    amounts included for 2003 in this budget reflect the Administration's
    2003 policy proposals.

                   Program and Financing (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0115-0-1-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

        Obligations by program activity:
    00.01 Space flight......................                               5,804
    00.02 Crosscutting technology...........                               1,591
    09.01 Reimbursable program..............                                 328
                                               ---------   ---------  ----------
    10.00   Total new obligations...........                               7,723
    ----------------------------------------------------------------------------

        Budgetary resources available for obligation:
    22.00 New budget authority (gross)......                               8,110
    23.95 Total new obligations.............                              -7,723
    24.40 Unobligated balance carried
            forward, end of year............                                 387
    ----------------------------------------------------------------------------

        New budget authority (gross), detail:
          Discretionary:

    40.00   Appropriation...................                               7,782
    68.00 Spending authority from offsetting
            collections: Offsetting
            collections (cash)..............                                 328
                                               ---------   ---------  ----------
    70.00   Total new budget authority
              (gross).......................                               8,110
    ----------------------------------------------------------------------------

        Change in obligated balances:
    73.10 Total new obligations.............                               7,723
    73.20 Total outlays (gross).............                              -5,613
    74.40 Obligated balance, end of year....                               2,110
    ----------------------------------------------------------------------------

        Outlays (gross), detail:
    86.90 Outlays from new discretionary
            authority.......................                               5,613
    ----------------------------------------------------------------------------

        Offsets:
          Against gross budget authority and outlays:

            Offsetting collections (cash)
                from:
    88.00     Federal sources...............                                -272
    88.40     Non-Federal sources...........                                 -56
                                               ---------   ---------  ----------
    88.90       Total, offsetting
                  collections (cash)........                                -328
    ----------------------------------------------------------------------------

        Net budget authority and outlays:
    89.00 Budget authority..................                               7,782
    90.00 Outlays...........................                               5,285
    ----------------------------------------------------------------------------

    Additional net budget authority and outlays to cover cost of fully accruing
                                     retirement:
    99.00 Budget authority..................                                  63
    99.01 Outlays...........................                                  63
    ---------------------------------------------------------------------------

        This appropriation provides for the full costs associated with the
    capabilities that support Agency research, which consist of the Space
    Flight and Crosscutting Technology Programs. The full costs include both
    the direct and the indirect costs supporting these programs, and provide
    for all of the research; development; operations; salaries and related
    expenses; design, repair, rehabilitation, and modification of facilities
    and construction of new facilities; maintenance and operation of
    existing facilities; and other general and administrative activities
    supporting Science, Aeronautics and Exploration programs. This account
    includes activities that were previously funded in the Human Space
    Flight and Science, Aeronautics, and Technology accounts.

    Performance Objectives

        Detailed performance goals associated with the Enabling Capabilities
    activities are addressed in NASA's FY 2004 President's Budget. The
    Enabling Capabilities activities include Space Flight and Crosscutting
    Technology, and are described below.

        Space Flight.--Space Flight encompasses the following themes:
    International Space Station (ISS), Space Shuttle Program, and Space and
    Flight Support.

        The ISS is a complex of research laboratories in low Earth orbit
    (LEO) in which American, Russian, Canadian, European, and Japanese
    astronauts are conducting unique scientific and technological
    investigations in a micro-gravity environment. The objectives of the
    Station are to support scientific research and other activities
    requiring the unique attributes of humans in space, and establish a
    permanent

    [[Page 959]]

    human presence in Earth orbit. Program estimates have been determined to
    be credible by independent assessment teams, however, concerns were
    raised in regard to the sufficiency of funding levels to cover risks to
    program performance and to expand research. To this end, the FY 2004
    Budget request provides increased funding for continued development of
    the vehicle and for operations in support of continued assembly,
    logistics re-supply, crew exchange, research operations and other
    utilization. With fourteen U.S. assembly and logistic missions
    successfully completed, the budget includes funding to keep subsequent
    assembly missions on schedule through U.S. Core Complete (Flight 10A),
    currently planned for calendar year 2004, and to continue to expand
    research opportunities commensurate with the build-up of on-orbit
    utilization capabilities and resources.

        The Space Shuttle Program plays a vital role in NASA's strategic
    goal to advance human exploration, use, and development of space by
    providing safe, routine access to space in support of permanent human
    operations in Low Earth Orbit. NASA planning assumes the Space Shuttle
    will need to be capable of supporting assembly and operation of the
    Space Station for at least this decade. Specific program investments are
    required in order to maintain this human transport capability through
    this decade. These investments are consistent with NASA's strategy of
    ensuring the Space Shuttle remains viable until a new transportation
    system is operational. The FY 2004 budget request will allow NASA to
    meet the intended flight rates, provide appropriate contingency planning
    to assure transportation and assembly support to the ISS program and
    include high priority projects for safety and supportability. These
    projects will combat obsolescence of vehicles, ground systems, and
    facilities, in order to maintain the program's safety and viability
    through this decade.

        Space and Flight Support is comprised of separate ``enabling
    capabilities'' programs that provide on-going customer support for a
    wide range of services including environmental activities, space
    communications, Space Shuttle payloads processing, expendable launch
    vehicles, and rocket propulsion systems testing. These services are
    critical for the conduct of space exploration, aeronautical research and
    physiological research. They are provided to a wide range of customers
    including NASA, other U.S. federal agencies, foreign governments and
    commercial interests. Space and Flight Support also includes the
    Advanced Systems program, which will enable NASA to take a ``stepping
    stone'' approach to future NASA missions through by advanced research
    and technology development.

        Crosscutting Technology.--The Aerospace Technology Enterprise
    includes three themes in Crosscutting Technology: Space Launch
    Initiative, Mission & Science Measurement Technology, and Innovative
    Technology Partnerships.

        The Space Launch Initiative (SLI) will develop the Orbital Space
    Plan (OSP) to help assure safe, affordable, and reliable U.S.-based crew
    access and return from the Space Station. The OSP will start as a crew
    return vehicle, launched on an Evolved Expendable Launch Vehicle (EELV).
    Initially, the OSP will provide crew return capability by 2010. By 2012,
    the Orbital Space Plane will evolve to be flown on a human-rated EELV
    and will transfer crew, and possibly limited cargo, to and from the
    International Space Station. This capability will serve as a complement
    and backup to the Space Shuttle for taking crew into space. Later, the
    Orbital Space Plane could become the basis for a crew transfer vehicle
    on a new reusable launch vehicle. Funds for the OSP will support an
    aggressive effort to assess options and complete a preliminary design by
    2005. If the Orbital Space Plane is approved for full-scale development,
    the program will be managed in a streamlined approach to reduce the cost
    of development and maintain an aggressive schedule. The Next Generation
    Launch Technology (NGLT) program will be responsible for making the
    investments relating to the next SLI goal, that focuses on making future
    space transportation systems safer, more affordable, and more reliable.
    NASA will make focused, strategic investments in key technology areas--
    including propulsion, structures and operations--to be applied to both
    reusable and expendable launch systems. The NGLT program will enable
    future development decisions on launch systems that support NASA's space
    transportation needs for the upcoming decades.

        The Mission and Science Measurement Technology (MSM) theme enables
    revolutionary capabilities through new technology. MSM objectives are to
    develop science-driven architectures and technology, to create knowledge
    from scientific data, and to develop capabilities for assessing and
    managing mission risk. The advanced system concepts, fundamental
    technologies, and engineering tools developed by MSM are unique to NASA
    needs, and are applicable across many classes of missions in multiple
    Enterprises. These products may require many years to progress from
    initial concept definition to mission infusion. Three programs have been
    formulated to accomplish MSM objectives: the Computing, Information, and
    Communications Technologies (CICT) Program, that develops breakthrough
    information and communication systems to increase our understanding of
    scientific data and phenomena; the Engineering for Complex Systems (ECS)
    Program, that develops the capabilities to assess and manage risk in the
    synthesis of complex systems; and the Enabling Concepts and Technologies
    (ECT) Program, that defines new system concepts, and develops new
    technologies to enable new science measurements for the NASA
    Enterprises.

        NASA's Innovative Technology Partnership activities consist of:
    Commercial Programs, Technology Transfer agents, the Enterprise Engine,
    and the Small Business Research programs. In FY 2004, NASA will initiate
    an orderly phase- out of the existing Commercial Technology Program, and
    a new concept--the Enterprise Engine--will be introduced. The Enterprise
    Engine will create partnerships between NASA, industrial firms and the
    venture capital community to address NASA's new technology mission needs
    through innovative technology development partnerships. NASA's Small
    Business Research programs will continue. They include the Small
    Business Innovation Research (SBIR) and the Small Business Technology
    Transfer (STTR) programs, which were created by Congress, and promote
    awards of NASA research contracts to the small business community and
    promote commercialization of the products of this research by the small
    business community. These programs help NASA develop innovative
    technologies by providing competitive research contracts to U.S. owned
    small businesses.

                   Object Classification (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0115-0-1-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

          Direct obligations:

            Personnel compensation:
    11.1      Full-time permanent...........                                 780
    11.3      Other than full-time permanent                                  16
    11.5      Other personnel compensation..                                  15
    11.8      Special personal services
                payments....................                                   7
                                               ---------   ---------  ----------
    11.9        Total personnel compensation                                 818
    12.1    Civilian personnel benefits.....                                 196
    21.0    Travel and transportation of
              persons.......................                                  31
    22.0    Transportation of things........                                   6
    23.1    Rental payments to GSA..........                                   1
    23.3    Communications, utilities, and
              miscellaneous charges.........                                  59
    24.0    Printing and reproduction.......                                   5
    25.1    Advisory and assistance services                                  39
    25.2    Other services..................                                 360
    25.3    Other purchases of goods and
              services from Government
              accounts......................                                 102
    25.4    Operation and maintenance of
              facilities....................                               2,499

    [[Page 960]]

    25.5    Research and development
              contracts.....................                               2,848
    25.7    Operation and maintenance of
              equipment.....................                                  46
    26.0    Supplies and materials..........                                 169
    31.0    Equipment.......................                                  96
    32.0    Land and structures.............                                 100
    41.0    Grants, subsidies, and
              contributions.................                                  20
                                               ---------   ---------  ----------
    99.0      Direct obligations............                               7,395
    99.0  Reimbursable obligations..........                                 328
                                               ---------   ---------  ----------
    99.9    Total new obligations...........                               7,723
    ---------------------------------------------------------------------------

                                  Personnel Summary

    ----------------------------------------------------------------------------
    Identification code 80-0115-0-1-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------
        Direct:
          Total compensable workyears:

    1001    Civilian full-time equivalent
              employment....................                               9,422
        Reimbursable:
    2001  Total compensable workyears:
            Civilian full-time equivalent
            employment......................                                  24
    ---------------------------------------------------------------------------

                               Human Space Flight

                   Program and Financing (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0111-0-1-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

        Obligations by program activity:
          Direct program:

    00.01   Space station...................       1,752       1,573          75
    00.02   Payload and ELV support.........          96          92           4
    00.03   Investments and support.........       1,001       1,233          31
    00.04   Space shuttle...................       3,290       3,117         160
    00.05   Space communications and data
              systems.......................         444         162           6
    00.07   Safety, mission assurance &
              engineering...................          46          49           2
    09.01 Reimbursable program..............         277         346
                                               ---------   ---------  ----------
    10.00   Total new obligations...........       6,906       6,572         278
    ----------------------------------------------------------------------------

        Budgetary resources available for obligation:
    21.40 Unobligated balance carried
            forward, start of year..........         171         373         278
    22.00 New budget authority (gross)......       7,063       6,477
    22.10 Resources available from
            recoveries of prior year
            obligations.....................          45
                                               ---------   ---------  ----------
    23.90   Total budgetary resources
              available for obligation......       7,279       6,850         278
    23.95 Total new obligations.............      -6,906      -6,572        -278
    24.40 Unobligated balance carried
            forward, end of year............         373         278
    ----------------------------------------------------------------------------

        New budget authority (gross), detail:
          Discretionary:

    40.00   Appropriation...................       6,988       6,131
    40.73   Reduction pursuant to P.L. 107-
              206...........................          -5
    41.00   Transferred to other accounts...        -210
                                               ---------   ---------  ----------
    43.00     Appropriation (total
                discretionary)..............       6,773       6,131
          Spending authority from offsetting
              collections:

    68.00   Offsetting collections (cash)...         267         346
    68.10   Change in uncollected customer
              payments from Federal sources
              (unexpired)...................          23
                                               ---------   ---------  ----------
    68.90     Spending authority from
                offsetting collections
                (total discretionary).......         290         346
                                               ---------   ---------  ----------
    70.00   Total new budget authority
              (gross).......................       7,063       6,477
    ----------------------------------------------------------------------------

        Change in obligated balances:
    72.40 Obligated balance, start of year..       1,468       1,697       1,773
    73.10 Total new obligations.............       6,906       6,572         278
    73.20 Total outlays (gross).............      -6,608      -6,496      -1,821
    73.40 Adjustments in expired accounts
            (net)...........................          -1
    73.45 Recoveries of prior year
            obligations.....................         -45
    74.00 Change in uncollected customer
            payments from Federal sources
            (unexpired).....................         -23
    74.10 Change in uncollected customer
            payments from Federal sources
            (expired).......................          -1
    74.40 Obligated balance, end of year....       1,697       1,773         230
    ----------------------------------------------------------------------------

        Outlays (gross), detail:
    86.90 Outlays from new discretionary
            authority.......................       5,086       4,515
    86.93 Outlays from discretionary
            balances........................       1,522       1,981       1,821
                                               ---------   ---------  ----------
    87.00   Total outlays (gross)...........       6,608       6,496       1,821
    ----------------------------------------------------------------------------

        Offsets:
          Against gross budget authority and outlays:

            Offsetting collections (cash)
                from:
    88.00     Federal sources...............        -244        -312
    88.40     Non-Federal sources...........         -27         -34
                                               ---------   ---------  ----------
    88.90       Total, offsetting
                  collections (cash)........        -271        -346
          Against gross budget authority only:

    88.95   Change in uncollected customer
              payments from Federal sources
              (unexpired)...................         -23
    88.96   Portion of offsetting
              collections (cash) credited to
              expired accounts..............           4
    ----------------------------------------------------------------------------

        Net budget authority and outlays:
    89.00 Budget authority..................       6,773       6,131
    90.00 Outlays...........................       6,336       6,150       1,821
    ----------------------------------------------------------------------------

    Additional net budget authority and outlays to cover cost of fully accruing
                                     retirement:
    99.00 Budget authority..................          39          44
    99.01 Outlays...........................          39          44
    ---------------------------------------------------------------------------

        NASA's ``Human Space Flight'' (HSF) account included the
    International Space Station; Space Shuttle; Payload and ELV Support;
    Human Exploration and Development of Space (HEDS) Investments and
    Support; Space Communications and Data Systems; and Safety, Mission
    Assurance and Engineering (SMA&E). With the exception of SMA&E, these
    activities, along with the Crosscutting portion of Aerospace Technology,
    will be included under the ``Enabling Capabilities'' account. Beginning
    in FY 2004, SMA&E is allocated as an indirect charge to all programs.
    This account shows spending from balances prior to the account
    restructuring.

                   Object Classification (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0111-0-1-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

          Direct obligations:

            Personnel compensation:
    11.1      Full-time permanent...........         500         569
    11.3      Other than full-time permanent           8           5
    11.5      Other personnel compensation..          12          16
    11.8      Special personal services
                payments....................           8          13
                                               ---------   ---------  ----------
    11.9        Total personnel compensation         528         603
    12.1    Civilian personnel benefits.....         125         131
    21.0    Travel and transportation of
              persons.......................          21          23
    22.0    Transportation of things........           6           6
    23.1    Rental payments to GSA..........           1           1
    23.3    Communications, utilities, and
              miscellaneous charges.........          56          51           3
    24.0    Printing and reproduction.......           5           5
    25.1    Advisory and assistance services          37          34           2
    25.2    Other services..................         340         312          16
    25.3    Other purchases of goods and
              services from Government
              accounts......................          96          88           4
    25.4    Operation and maintenance of
              facilities....................       2,357       2,170         110
    25.5    Research and development
              contracts.....................       2,646       2,430         125
    25.6    Medical care....................           5
    25.7    Operation and maintenance of
              equipment.....................          43          39           2
    26.0    Supplies and materials..........         159         146           7
    31.0    Equipment.......................          91          84           4
    32.0    Land and structures.............          94          86           4
    41.0    Grants, subsidies, and
              contributions.................          19          17           1
                                               ---------   ---------  ----------
    99.0      Direct obligations............       6,629       6,226         278
    99.0  Reimbursable obligations..........         277         346
                                               ---------   ---------  ----------
    99.9    Total new obligations...........       6,906       6,572         278
    ---------------------------------------------------------------------------

    [[Page 961]]

                                  Personnel Summary

    ----------------------------------------------------------------------------
    Identification code 80-0111-0-1-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------
        Direct:
          Total compensable workyears:

    1001    Civilian full-time equivalent
              employment....................       6,531       6,912
        Reimbursable:
    2001  Total compensable workyears:
            Civilian full-time equivalent
            employment......................          26          30
    ---------------------------------------------------------------------------

                       Science, Aeronautics and Technology

                   Program and Financing (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0110-0-1-999      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

        Obligations by program activity:
          Direct program:

    00.01   Space science...................       2,863       3,428         161
    00.02   Biological and physical research         816         882          37
    00.03   Earth science...................       1,616       1,734          74
    00.04   Aerospace technology............       2,539       2,803         118
    00.06   Academic programs...............         212         176          24
    09.01 Reimbursable program..............         455         642
                                               ---------   ---------  ----------
    10.00   Total new obligations...........       8,501       9,665         414
    ----------------------------------------------------------------------------

        Budgetary resources available for obligation:
    21.40 Unobligated balance carried
            forward, start of year..........         448         593         414
    22.00 New budget authority (gross)......       8,616       9,486
    22.10 Resources available from
            recoveries of prior year
            obligations.....................          30
                                               ---------   ---------  ----------
    23.90   Total budgetary resources
              available for obligation......       9,094      10,079         414
    23.95 Total new obligations.............      -8,501      -9,665        -414
    24.40 Unobligated balance carried
            forward, end of year............         593         414
    ----------------------------------------------------------------------------

        New budget authority (gross), detail:
          Discretionary:

    40.00   Appropriation...................       7,890       8,844
    40.76   Reduction pursuant to P.L. 107-
              206...........................          -5
    42.00   Transferred from other accounts.         210
                                               ---------   ---------  ----------
    43.00     Appropriation (total
                discretionary)..............       8,095       8,844
          Spending authority from offsetting
              collections:

    68.00   Offsetting collections (cash)...         587         642
    68.10   Change in uncollected customer
              payments from Federal sources
              (unexpired)...................         -66
                                               ---------   ---------  ----------
    68.90     Spending authority from
                offsetting collections
                (total discretionary).......         521         642
                                               ---------   ---------  ----------
    70.00   Total new budget authority
              (gross).......................       8,616       9,486
    ----------------------------------------------------------------------------

        Change in obligated balances:
    72.40 Obligated balance, start of year..       3,360       3,748       4,494
    73.10 Total new obligations.............       8,501       9,665         414
    73.20 Total outlays (gross).............      -8,130      -8,917      -4,048
    73.40 Adjustments in expired accounts
            (net)...........................         -37
    73.45 Recoveries of prior year
            obligations.....................         -30
    74.00 Change in uncollected customer
            payments from Federal sources
            (unexpired).....................          66
    74.10 Change in uncollected customer
            payments from Federal sources
            (expired).......................          18
    74.40 Obligated balance, end of year....       3,748       4,494         861
    ----------------------------------------------------------------------------

        Outlays (gross), detail:
    86.90 Outlays from new discretionary
            authority.......................       4,805       5,241
    86.93 Outlays from discretionary
            balances........................       3,325       3,676       4,048
                                               ---------   ---------  ----------
    87.00   Total outlays (gross)...........       8,130       8,917       4,048
    ----------------------------------------------------------------------------

        Offsets:
          Against gross budget authority and outlays:

            Offsetting collections (cash)
                from:
    88.00     Federal sources...............        -562        -551
    88.40     Non-Federal sources...........         -36         -91
                                               ---------   ---------  ----------
    88.90       Total, offsetting
                  collections (cash)........        -598        -642
          Against gross budget authority only:

    88.95   Change in uncollected customer
              payments from Federal sources
              (unexpired)...................          66
    88.96   Portion of offsetting
              collections (cash) credited to
              expired accounts..............          11
    ----------------------------------------------------------------------------

        Net budget authority and outlays:
    89.00 Budget authority..................       8,095       8,844
    90.00 Outlays...........................       7,532       8,275       4,048
    ----------------------------------------------------------------------------

    Additional net budget authority and outlays to cover cost of fully accruing
                                     retirement:
    99.00 Budget authority..................          72          75
    99.01 Outlays...........................          72          75
    ---------------------------------------------------------------------------

        NASA's ``Science, Aeronautics and Technology'' (SAT) account
    included Space Science, Biological and Physical Research, Earth Science,
    Aerospace Technology, and Academic Programs. Beginning in 2004, Space
    Science, Biological and Physical Research, Earth Science, the
    Aeronautics portion of Aerospace Technology, and Academic Programs
    (which, beginning in FY 2004, is renamed Education Programs), will be
    included under the ``Science, Aeronautics and Exploration'' (SAE)
    account. This account shows spending from balances prior to the account
    restructuring.

                   Object Classification (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0110-0-1-999      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

          Direct obligations:

            Personnel compensation:
    11.1      Full-time permanent...........         921         949
    11.3      Other than full-time permanent          18          17
    11.5      Other personnel compensation..          20          26
    11.8      Special personal services
                payments....................           1           2
                                               ---------   ---------  ----------
    11.9        Total personnel compensation         960         994
    12.1    Civilian personnel benefits.....         212         219
    21.0    Travel and transportation of
              persons.......................          33          36
    22.0    Transportation of things........           7           8
    23.1    Rental payments to GSA..........          15          17
    23.3    Communications, utilities, and
              miscellaneous charges.........          80          91           5
    24.0    Printing and reproduction.......           5           6
    25.1    Advisory and assistance services         147         167           9
    25.2    Other services..................         734         834          44
    25.3    Other purchases of goods and
              services from Government
              accounts......................         286         325          17
    25.4    Operation and maintenance of
              facilities....................         260         295          16
    25.5    Research and development
              contracts.....................       3,551       4,035         216
    25.7    Operation and maintenance of
              equipment.....................          89         101           5
    26.0    Supplies and materials..........         169         192          10
    31.0    Equipment.......................         111         126           7
    32.0    Land and structures.............         203         231          12
    41.0    Grants, subsidies, and
              contributions.................       1,184       1,346          73
                                               ---------   ---------  ----------
    99.0      Direct obligations............       8,046       9,023         414
    99.0  Reimbursable obligations..........         455         642
                                               ---------   ---------  ----------
    99.9    Total new obligations...........       8,501       9,665         414
    ---------------------------------------------------------------------------

                                  Personnel Summary

    ----------------------------------------------------------------------------
    Identification code 80-0110-0-1-999      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------
        Direct:
          Total compensable workyears:

    1001    Civilian full-time equivalent
              employment....................      11,835      11,832
        Reimbursable:
    2001  Total compensable workyears:
            Civilian full-time equivalent
            employment......................          79          63
    ---------------------------------------------------------------------------

                                 Mission Support

                   Program and Financing (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0112-0-1-999      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

        Obligations by program activity:
          Direct program:

    00.01   Safety, mission assurance,
              engineering, and advanced
              concepts......................           5
    00.02   Research and program management.          41
    00.03   Construction of facilities......          70          47
                                               ---------   ---------  ----------
    01.00   Total direct program............         116          47
    09.01 Reimbursable program..............           4
                                               ---------   ---------  ----------
    10.00   Total new obligations...........         120          47
    ----------------------------------------------------------------------------

    [[Page 962]]

        Budgetary resources available for obligation:
    21.40 Unobligated balance carried
            forward, start of year..........         146          47
    22.00 New budget authority (gross)......           5
    22.10 Resources available from
            recoveries of prior year
            obligations.....................           7
    22.22 Unobligated balance transferred
            from other accounts.............          10
                                               ---------   ---------  ----------
    23.90   Total budgetary resources
              available for obligation......         168          47
    23.95 Total new obligations.............        -120         -47
    23.98 Unobligated balance expiring or
            withdrawn.......................          -1
    24.40 Unobligated balance carried
            forward, end of year............          47
    ----------------------------------------------------------------------------

        New budget authority (gross), detail:
          Spending authority from offsetting
              collections:

            Discretionary:
    68.00     Offsetting collections (cash).          15
    68.10     Change in uncollected customer
                payments from Federal
                sources (unexpired).........         -10
                                               ---------   ---------  ----------
    68.90       Spending authority from
                  offsetting collections
                  (total discretionary).....           5
    ----------------------------------------------------------------------------

        Change in obligated balances:
    72.40 Obligated balance, start of year..         623         187          89
    73.10 Total new obligations.............         120          47
    73.20 Total outlays (gross).............        -556        -145         -89
    73.40 Adjustments in expired accounts
            (net)...........................         -10
    73.45 Recoveries of prior year
            obligations.....................          -7
    74.00 Change in uncollected customer
            payments from Federal sources
            (unexpired).....................          10
    74.10 Change in uncollected customer
            payments from Federal sources
            (expired).......................           8
    74.40 Obligated balance, end of year....         187          89
    ----------------------------------------------------------------------------

        Outlays (gross), detail:
    86.90 Outlays from new discretionary
            authority.......................           5
    86.93 Outlays from discretionary
            balances........................         551         145          89
                                               ---------   ---------  ----------
    87.00   Total outlays (gross)...........         556         145          89
    ----------------------------------------------------------------------------

        Offsets:
          Against gross budget authority and outlays:

            Offsetting collections (cash)
                from:
    88.00     Federal sources...............         -15
    88.40     Non-Federal sources...........          -7
                                               ---------   ---------  ----------
    88.90       Total, offsetting
                  collections (cash)........         -22
          Against gross budget authority only:

    88.95   Change in uncollected customer
              payments from Federal sources
              (unexpired)...................          10
    88.96   Portion of offsetting
              collections (cash) credited to
              expired accounts..............           7
    ----------------------------------------------------------------------------

        Net budget authority and outlays:
    89.00 Budget authority..................
    90.00 Outlays...........................         534         145          89
    ---------------------------------------------------------------------------

        NASA's ``Mission Support'' account included Research and Program
    Management (R&PM) and Construction of Facilities (CoF), which have not
    been included in a separate appropriation since 2001. Instead, those
    ``Mission Support'' activities are budgeted as part of the full costs
    associated with projects in the Science, Aeronautics and Exploration
    account or the Enabling Capabilities account (except for environmental
    activities, which had previously been included in CoF, and is now
    budgeted separately under Enabling Capabilities). This account shows
    spending from balances prior to the account restructuring.

                   Object Classification (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0112-0-1-999      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

          Direct obligations:

    23.1    Rental payments to GSA..........           4
    24.0    Printing and reproduction.......           1
    25.1    Advisory and assistance services           1
    25.2    Other services..................          28
    25.3    Other purchases of goods and
              services from Government
              accounts......................           5
    25.4    Operation and maintenance of
              facilities....................           6
    25.5    Research and development
              contracts.....................           8
    25.7    Operation and maintenance of
              equipment.....................           5
    26.0    Supplies and materials..........           3
    31.0    Equipment.......................           2
    32.0    Land and structures.............          52          47
    41.0    Grants, subsidies, and
              contributions.................           1
                                               ---------   ---------  ----------
    99.0      Direct obligations............         116          47
    99.0  Reimbursable obligations..........           4
                                               ---------   ---------  ----------
    99.9    Total new obligations...........         120          47
    ---------------------------------------------------------------------------

                           Construction of Facilities

                   Program and Financing (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0107-0-1-999      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

        Obligations by program activity:
    00.01 Construction of facilities........          -5
                                               ---------   ---------  ----------
    10.00   Total new obligations (object
              class 32.0)...................          -5
    ----------------------------------------------------------------------------

        Budgetary resources available for obligation:
    21.40 Unobligated balance carried
            forward, start of year..........           5
    22.21 Unobligated balance transferred to
            other accounts..................         -10
                                               ---------   ---------  ----------
    23.90   Total budgetary resources
              available for obligation......          -5
    23.95 Total new obligations.............           5
    ----------------------------------------------------------------------------

        Change in obligated balances:
    72.40 Obligated balance, start of year..           6
    73.10 Total new obligations.............          -5
    73.20 Total outlays (gross).............          -2
    ----------------------------------------------------------------------------

        Outlays (gross), detail:
    86.93 Outlays from discretionary
            balances........................           2
    ----------------------------------------------------------------------------

        Net budget authority and outlays:
    89.00 Budget authority..................
    90.00 Outlays...........................           2
    ---------------------------------------------------------------------------

        Beginning in 2004, NASA's Construction of Facilities (CoF)
    activities will be performed in the Science, Aeronautics and Exploration
    or Enabling Capabilities accounts. From 1995 to 2003, CoF facilities
    activities were included in Human Space Flight; Science, Aeronautics and
    Technology; and Mission Support. This account shows spending from
    balances prior to the account restructuring.

                           Office of Inspector General

        For necessary expenses of the Office of Inspector General in
    carrying out the Inspector General Act of 1978, as amended, $26,300,000.

        Note.--A regular 2003 appropriation for this account had not been
    enacted at the time the budget was prepared; therefore, this account is
    operating under a continuing resolution (P.L. 107-229, as amended). The
    amounts included for 2003 in this budget reflect the Administration's
    2003 policy proposals.

                   Program and Financing (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0109-0-1-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

        Obligations by program activity:
    00.01 Direct program activity...........          23          25          26
                                               ---------   ---------  ----------
    10.00   Total new obligations...........          23          25          26
    ----------------------------------------------------------------------------

        Budgetary resources available for obligation:
    22.00 New budget authority (gross)......          24          25          26
    23.95 Total new obligations.............         -23         -25         -26
    ----------------------------------------------------------------------------

        New budget authority (gross), detail:
          Discretionary:

    40.00   Appropriation...................          24          25          26
    ----------------------------------------------------------------------------

    [[Page 963]]

        Change in obligated balances:
    72.40 Obligated balance, start of year..           3           3           3
    73.10 Total new obligations.............          23          25          26
    73.20 Total outlays (gross).............         -24         -25         -26
    74.40 Obligated balance, end of year....           3           3           3
    ----------------------------------------------------------------------------

        Outlays (gross), detail:
    86.90 Outlays from new discretionary
            authority.......................          21          22          23
    86.93 Outlays from discretionary
            balances........................           3           3           3
                                               ---------   ---------  ----------
    87.00   Total outlays (gross)...........          24          25          26
    ----------------------------------------------------------------------------

        Net budget authority and outlays:
    89.00 Budget authority..................          24          25          26
    90.00 Outlays...........................          24          25          26
    ----------------------------------------------------------------------------

    Additional net budget authority and outlays to cover cost of fully accruing
                                     retirement:
    99.00 Budget authority..................           1           1           1
    99.01 Outlays...........................           1           1           1
    ---------------------------------------------------------------------------

        The mission of the Office of Inspector General is to conduct audits
    and investigations of agency activities. The Inspector General keeps the
    Administrator informed of problems and deficiencies in agency programs
    and operations.

                   Object Classification (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-0109-0-1-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------
    11.1  Personnel compensation: Full-time
            permanent.......................          16          18          19
    12.1  Civilian personnel benefits.......           5           5           5
    21.0  Travel and transportation of
            persons.........................           1           1           1
    26.0  Supplies and materials............           1           1           1
                                               ---------   ---------  ----------
    99.9    Total new obligations...........          23          25          26
    ---------------------------------------------------------------------------

                                  Personnel Summary

    ----------------------------------------------------------------------------
    Identification code 80-0109-0-1-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------
        Direct:
          Total compensable workyears:

    1001    Civilian full-time equivalent
              employment....................         200         213         213
    ---------------------------------------------------------------------------

                                   Trust Funds

               Science, Space, and Technology Education Trust Fund

                  Unavailable Collections (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-8978-0-7-503      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------
    01.99 Balance, start of year............
        Receipts:
    02.40 Earnings on investments; Science,
            Space and Technology Education,
            Trust Fu........................           1           1           1
        Appropriations:
    05.00 Science, space, and technology
            education trust fund............          -1          -1          -1
                                               ---------   ---------  ----------
    07.99 Balance, end of year..............
    ---------------------------------------------------------------------------

                   Program and Financing (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-8978-0-7-503      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

        Obligations by program activity:
    00.01 Direct program activity...........           1           1           1
                                               ---------   ---------  ----------
    10.00   Total new obligations (object
              class 41.0)...................           1           1           1
    ----------------------------------------------------------------------------

        Budgetary resources available for obligation:
    21.40 Unobligated balance carried
            forward, start of year..........          15          15          15
    22.00 New budget authority (gross)......           1           1           1
                                               ---------   ---------  ----------
    23.90   Total budgetary resources
              available for obligation......          16          16          16
    23.95 Total new obligations.............          -1          -1          -1
    24.40 Unobligated balance carried
            forward, end of year............          15          15          15
    ----------------------------------------------------------------------------

        New budget authority (gross), detail:
          Mandatory:

    60.26   Appropriation (trust fund)......           1           1           1
    ----------------------------------------------------------------------------

        Change in obligated balances:
    73.10 Total new obligations.............           1           1           1
    73.20 Total outlays (gross).............          -1          -1          -1
    ----------------------------------------------------------------------------

        Outlays (gross), detail:
    86.97 Outlays from new mandatory
            authority.......................           1           1           1
    ----------------------------------------------------------------------------

        Net budget authority and outlays:
    89.00 Budget authority..................           1           1           1
    90.00 Outlays...........................           1           1           1
    ----------------------------------------------------------------------------

        Memorandum (non-add) entries:
    92.01 Total investments, start of year:
            Federal securities: Par value...          14          14          15
    92.02 Total investments, end of year:
            Federal securities: Par value...          14          15          15
    ---------------------------------------------------------------------------

                          National Space Grant Program

                   Program and Financing (in millions of dollars)

    ----------------------------------------------------------------------------
    Identification code 80-8977-0-7-252      2002 actual   2003 est.   2004 est.
    ----------------------------------------------------------------------------

        Obligations by program activity:
    00.01 Direct program activity...........                       3
                                               ---------   ---------  ----------
    10.00   Total new obligations (object
              class 41.0)...................                       3
    ----------------------------------------------------------------------------

        Budgetary resources available for obligation:
    21.40 Unobligated balance carried
            forward, start of year..........           3           3
    23.95 Total new obligations.............                      -3
    24.40 Unobligated balance carried
            forward, end of year............           3
    ----------------------------------------------------------------------------

        Change in obligated balances:
    73.10 Total new obligations.............                       3
    73.20 Total outlays (gross).............                      -3
    ----------------------------------------------------------------------------

        Outlays (gross), detail:
    86.98 Outlays from mandatory balances...                       3
    ----------------------------------------------------------------------------

        Net budget authority and outlays:
    89.00 Budget authority..................
    90.00 Outlays...........................                       3
    ---------------------------------------------------------------------------

                            Administrative Provisions

        Notwithstanding the limitation on the availability of funds
    appropriated for ``Science, aeronautics and exploration'', or ``Space
    flight capabilities'' by this appropriations Act, when any activity has
    been initiated by the incurrence of obligations for construction of
    facilities as authorized by law, such amount available for such activity
    shall remain available until expended. This provision does not apply to
    the amounts appropriated for institutional minor revitalization and
    construction of facilities, and institutional facility planning and
    design.
        Notwithstanding the limitation on the availability of funds
    appropriated for ``Science, aeronautics and exploration'', or ``Space
    flight capabilities'' by this appropriations Act, the amounts
    appropriated for construction of facilities shall remain available until
    September 30, 2006.
        From amounts made available in this Act for these activities, the
    Administration may transfer amounts between aeronautics of the
    ``Science, Aeronautics and Exploration'' account and crosscutting
    technologies of the ``Space flight capabilities'' account.
        Funds for announced prizes otherwise authorized shall remain
    available, without fiscal year limitation, until the prize is claimed or
    the offer is withdrawn.
        The unexpired balances of prior appropriations to NASA for
    activities for which funds are provided under this Act may be
    transferred to the new account established for the appropriation that
    provides such activity under this Act. Balances so transferred may be
    merged with funds in the newly established account and thereafter may be
    accounted for as one fund under the same terms and conditions.