The Energy and Water Development appropriations bill includes funding for civil works projects of the U.S. Army Corps of Engineers (Corps), the Department of the Interior's Central Utah Project (CUP) and Bureau of Reclamation (Reclamation), the Department of Energy (DOE), and a number of independent agencies, including the Nuclear Regulatory Commission (NRC) and the Appalachian Regional Commission (ARC). President Obama's FY2016 budget request, released February 2, 2015, would have provided $36.04 billion for agencies in the Energy and Water Development bill—3.6% above the $34.78 billion appropriated for FY2015. The FY2016 request for DOE was up by 8.4%, led by a proposed 13.0% increase in energy programs. The Corps would have been reduced by 13.2%, and the Bureau of Reclamation would have received a 3.0% cut. Figure 1 compares the major components of the Energy and Water Development bill. The House approved its version of the FY2016 Energy and Water Development Appropriations Bill ( H.R. 2028 , H.Rept. 114-91 ) May 1, 2015, by a vote of 244-177. Total funding in the bill, including rescissions, was $35.4 billion, 1.8% below the Administration's request. The House provided $5.64 billion for the Corps, 19.2% above the request, and $28.97 billion for DOE, 5.1% below the request. The House total for the Bureau of Reclamation was nearly the same as the request. The Senate Appropriations Committee reported its version of H.R. 2028 ( S.Rept. 114-54 ) on May 21, 2015. Total funding in the bill was $35.37 billion, including rescissions, slightly below the House-passed level. Compared with the House level, the Senate committee bill increased DOE funding by $333 million (1.2%) and decreased the Corps by $268 million (4.7%). The Senate measure did not include the House amendments discussed below. Congress enacted an omnibus funding measure for the entire federal government on December 18, 2015, the Consolidated Appropriations Act, 2016 ( P.L. 114-113 ). The omnibus measure provided a total of $37.3 billion for energy and water programs for FY2016, an increase of 7.3% over FY2015. Funding in the omnibus measure included $29.7 billion for DOE (up 5.7%), $6.0 billion for the Corps (up 9.8%), $1.3 billion for Reclamation (up 11.8%), and $342 million for independent agencies (up 27.0%). President Obama strongly opposed the House Appropriations Committee bill in an April 28, 2015, Statement of Administration Policy. The Administration particularly criticized the bill's reductions in the President's budget request for energy efficiency and renewable energy and strongly objected to a prohibition on the Corps rulemaking on the definition of "waters of the United States." According to the Administration statement, the President's senior advisors would have recommended a veto of the House Committee bill. Several amendments generated substantial debate and were adopted by the House after recorded votes: Prohibiting DOE from using funds in the bill to enforce light bulb efficiency standards. Offered by Representative Michael C. Burgess; adopted 232-189. This prohibition was included in Division D, Sec. 312 of P.L. 114-113 . Prohibiting DOE from using a report on lifecycle greenhouse gas emissions when making determinations on liquefied natural gas exports. Offered by Representative Keith J. Rothfus; adopted 232-172. It was not included in P.L. 110-114 . Prohibiting funds in the bill from being used for DOE's Climate Model Development and Validation program. Offered by Representative Paul A. Gosar; adopted 224-184. It was not included in P.L. 110-114 . Prohibiting funds in the bill from being used to purchase water to meet stream flow requirements in California. Offered by Representative Tom McClintock; adopted 228-183. It was not included in P.L. 110-114 . Prohibiting funds in the bill from being used to limit Clean Water Act exemptions for certain agricultural activities. Offered by Representative Doug LaMalfa; adopted 239-174. Similar language was included in Division D, Sec. 110 of P.L. 114-113 . Prohibiting funds in the bill from being used to deliver water to the Trinity River above minimum requirements or to supplement flows in the Klamath River. Offered by Representative Doug LaMalfa; adopted 228-183. It was not included in P.L. 110-114 . Congressional consideration of the annual Energy and Water Development appropriations bill is affected by certain procedural and statutory budget enforcement measures. The procedural budget enforcement is primarily through limits associated with the budget resolution on total discretionary spending and spending under the jurisdiction of each appropriations subcommittee. Statutory budget enforcement is derived from the Budget Control Act of 2011 (BCA; P.L. 112-25 ). The BCA established limits on defense and nondefense discretionary spending. These limits are in effect for each of the fiscal years between FY2012 and FY2021, and are primarily enforced by an automatic spending reduction process called sequestration. The Bipartisan Budget Act of 2013 ( P.L. 113-67 ) established higher levels for the FY2014 and FY2015 spending limits than what would have otherwise been in effect. The original BCA process to calculate the limits would have again become effective starting in FY2016, but higher limits were enacted by the Bipartisan Budget Act of 2015 ( P.L. 114-74 ). (For more information on discretionary spending limits, see CRS Report CRS Report R44062, Congressional Action on FY2016 Appropriations Measures , by [author name scrubbed].) For FY2015, appropriations for Energy and Water Development programs were included in the Consolidated and Further Continuing Appropriations Act, 2015 ( H.R. 83 ). Energy and Water funding totaled $519 million above the request and $653 million above FY2014, including rescissions. The consolidated appropriations measure passed the House on December 11, 2014, and the Senate on December 13, 2014, and was signed by the President on December 16, 2014 ( P.L. 113-235 ). For details, see CRS Report CRS Report R43567, Energy and Water Development: FY2015 Appropriations , coordinated by [author name scrubbed]. The Administration's FY2016 Energy and Water Development appropriations request and subsequent congressional action have highlighted several significant areas of debate. The issues described in this section—listed approximately in the order they appear in the Energy and Water Development bill—were selected based on the total funding involved and the percentage of increases or decreases, the amount of congressional attention, and their impact on broader public policy considerations. The Corps requested but did not receive a $5 million increase for Clean Water Act (CWA) rulemaking activities, including developing a final rule to define "waters of the United States (WOTUS)" jointly with the Environmental Protection Agency (EPA). While FY2016 funding was being considered in Congress, the Corps and EPA promulgated the final rule on June 29, 2015. Waters under CWA jurisdiction are subject to CWA regulatory requirements; for example, they cannot be dredged or filled without a Corps permit. H.R. 2028 , as approved by the House, would have barred the Corps from developing, adopting, implementing, or enforcing any change to rules or guidance pertaining to the CWA definition of "waters of the United States," but the restriction was not included in the Senate bill or the final omnibus act. Similar provisions were included in proposed FY2015 appropriations bill language during the 113 th Congress, but were not enacted. For more information, see CRS Report R43943, EPA and the Army Corps' "Waters of the United States" Rule: Congressional Response and Options , by [author name scrubbed]. DOE's energy efficient manufacturing research funding would have more than doubled under the Administration request, with most of the increase going to the establishment of two new Clean Energy Manufacturing Institutes as part of the National Network for Manufacturing Innovation. Research on energy efficient vehicles would have risen 59% under the FY2016 budget request. The main activity increased under the vehicles program would have been the Electric Vehicle Everywhere Grand Challenge Program, a 10-year program announced in March 2012 to encourage production of cost-competitive plug-in electric vehicles. The funding request was included in DOE's Energy Efficiency and Renewable Energy program, which would have seen a total increase of 42%, from $1.914 billion in FY2015 to $2.723 billion in FY2016. The proposed increases were largely rejected by the House and by the Senate committee. The enacted omnibus funding measure provided $2.073 billion for energy efficiency and renewables, including a 14% increase in manufacturing research and a 10% boost in vehicle technologies. Funding for the disposition of highly radioactive "spent," or "used," fuel from nuclear power plants would have risen 52%—from $71.5 million to $108.4 million—in the Administration's request. The additional funding would have expanded DOE's efforts to develop a "consent based" waste management system as an alternative to a planned repository at Yucca Mountain, NV, which the Administration is no longer pursuing. But the House, as it has in the past, rejected funding for the Administration's nuclear waste management program and provided $175 million to continue the Yucca Mountain licensing process. Following the pattern of recent years, the Senate committee did not include funding for Yucca Mountain but authorized a pilot consolidated nuclear waste surface storage facility. The omnibus funding measure provided $85 million for used nuclear fuel disposition but did not include the House funding for Yucca Mountain or the Senate Committee pilot storage facility. For more information, see CRS Report RL33461, Civilian Nuclear Waste Disposal , by [author name scrubbed]. The International Thermonuclear Experimental Reactor (ITER), under construction in France, continues to draw congressional concerns about management, schedule, and cost. The United States is to pay 9.09% of the project's construction costs, including contributions of components, cash, and personnel. The total U.S. share of the cost is currently estimated at between $4.0 billion and $6.5 billion, up from $1.45 billion to $2.2 billion in 2008. The Administration's proposed U.S. contribution for FY2016 was $150.0 million, the same as the FY2015 level. The House approved the Administration request, while warning that future support would depend on management reform. The Senate committee proposed eliminating ITER funding. P.L. 114-113 provided $115 million, along with reporting requirements on the project's schedule and management. Maintaining U.S. nuclear bombs and missile warheads is the responsibility of DOE's National Nuclear Security Administration (NNSA). The Administration requested $8.85 billion for NNSA's Weapons Activities in FY2016, a 10.7% increase over the comparable funding level in FY2015. For FY2016, the Administration proposed to combine two counterterrorism programs that had been located in Weapons Activities—Nuclear Counterterrorism Incident Response, and Counterterrorism and Counterproliferation—and transfer them to Defense Nuclear Nonproliferation, also run by NNSA. P.L. 114-113 provided the Administration's full request for Weapons Activities, including the transfer and consolidation of the counterterrorism and counterproliferation programs. The Mixed-Oxide Fuel Fabrication Facility (MFFF), which would make fuel for nuclear reactors out of surplus weapons plutonium, has faced sharply escalating construction and operation cost estimates. After Congress rejected the Administration's proposal for FY2015 to place the controversial South Carolina project in "cold standby," DOE requested level funding of $345 million for continued construction in FY2016. DOE completed a congressionally mandated study of MFFF and a potentially less expensive alternative plutonium disposal method during FY2015, to dilute the surplus plutonium for disposal at the Waste Isolation Pilot Plant (WIPP) in New Mexico. P.L. 114-113 provided $340 million for MFFF construction, plus $5 million for planning and design of the "dilute and dispose" option. For more information, see CRS Report R43125, Mixed-Oxide Fuel Fabrication Plant and Plutonium Disposition: Management and Policy Issues , by [author name scrubbed] and [author name scrubbed]. DOE's Office of Environmental Management (EM) is responsible for environmental cleanup and waste management at the Department's nuclear facilities. P.L. 114-113 provided $6.22 billion for EM, a $400 million increase above the request of $5.82 billion, but did not fund a request of $472 million for the federal contribution to the Uranium Enrichment Decontamination and Decommissioning Fund. The nearly flat funding request—$5.82 billion requested in FY2016 compared with $5.86 billion enacted in FY2015—would have been coupled with efforts by DOE to negotiate changes in its environmental compliance requirements that could modify cleanup milestones at some sites, according to DOE's budget justification. The milestones are specified in enforceable environmental compliance agreements among DOE, the Environmental Protection Agency, and the states. DOE called for similar milestone renegotiations in its FY2015 budget justification. DOE efforts to resume operations at WIPP have continued in FY2016. DOE plans to resume limited waste disposal operations sometime in the first quarter of calendar year 2016. WIPP is the centralized geologic repository for the permanent disposal of transuranic wastes generated at other DOE sites. WIPP operations ceased after two incidents in February 2014, one involving a truck fire and the other involving a radiological release. P.L. 114-113 provided $300 million for WIPP within the Environmental Management appropriation, of which $82 million was allocated to recovery activities. The total FY2016 appropriation for WIPP is $57 million above the request of $243 million, and $20 million below the FY2015 appropriation of $320 million. DOE proposed a new Energy-Water Nexus crosscutting activity for FY2016 that would analyze the relationships between energy and water use and conduct research on water and energy systems. In justifying the new activity, DOE noted that energy is a major user of the nation's water and that extraction, distribution, and treatment of water requires large amounts of energy. DOE offices that would be involved in this crosscut include Energy Policy and Systems Analysis, International Affairs, Energy Efficiency and Renewable Energy, Fossil Energy, Indian Energy Policy and Programs, and Science. Funding for Energy-Water Nexus activities, to be provided through existing program offices, would total $38.4 million in FY2016. The initiative is currently being implemented by the Secretary of Energy's Water-Energy Tech Team, although it was not specifically mentioned in P.L. 114-113 . For more information, see CRS Report R43200, Energy-Water Nexus: The Water Sector's Energy Use , by [author name scrubbed], and CRS Report R43199, Energy-Water Nexus: The Energy Sector's Water Use , by [author name scrubbed]. Table 1 indicates the steps taken during consideration of the FY2016 funding legislation. Table 2 includes budget totals for energy and water development appropriations enacted for FY2008 through FY2016. The annual Energy and Water Development Appropriations bill includes four titles: Title I—Corps of Engineers—Civil; Title II—Department of the Interior (Central Utah Project and Bureau of Reclamation); Title III—Department of Energy; and Title IV—Independent Agencies, as shown in Table 3 . Major programs in the bill are described in this section in the approximate order they appear in the bill. Funding details for many of these programs are provided in separate CRS reports as indicated. The U.S. Army Corps of Engineers is an agency in the Department of Defense with both military and civilian responsibilities. Under its civil works program, which is funded by the Energy and Water Appropriations bill, the Corps plans, builds, operates, and maintains a wide range of water resources facilities. Corps appropriations are generally authorized in water resources development acts. Most recently, Congress enacted a new water resources development act in June 2014, the Water Resources Reform and Development Act of 2014 (WRRDA, P.L. 113-121 ). This bill authorized new Corps projects and studies and altered numerous Corps policies and procedures. Corps funding is part of the ongoing debate over congressionally directed spending, or "earmarks." Unlike highways and municipal water infrastructure programs, federal funds for the Corps are not distributed to states or projects based on a formula or delivered via competitive grants. Generally about 85% of the appropriations for Corps civil works activities are directed to specific projects. In addition to specific projects identified for funding in the President's budget, for decades Congress annually identified during the discretionary appropriations process many additional Corps projects to receive funding. In the 112 th Congress, site-specific project line items added by Congress (i.e., earmarks) became subject to House and Senate earmark moratorium policies. As a result, Congress generally has not added funding at the project level since FY2010. In lieu of the traditional project-based increases, Congress has included "additional funding" for select categories of Corps projects (e.g., "ongoing navigation work"), and provided direction and limitations on the use of these funds. For more information, see CRS In Focus IF10176, Army Corps of Engineers: FY2016 Appropriations , by [author name scrubbed]. Most of the large dams and water diversion structures in the West were built by, or with the assistance of, the Bureau of Reclamation. While the Army Corps of Engineers built hundreds of flood control and navigation projects, Reclamation's mission was to develop water supplies, primarily for irrigation to reclaim arid lands in the West for farming and ranching. Today, Reclamation manages hundreds of dams and diversion projects, including more than 300 storage reservoirs in 17 western states. These projects provide water to approximately 10 million acres of farmland and a population of 31 million. Reclamation is the largest wholesale supplier of water in the 17 western states and the second-largest hydroelectric power producer in the nation. Reclamation facilities also provide substantial flood control, recreation, and fish and wildlife benefits. Operations of Reclamation facilities are often controversial, particularly for their effect on fish and wildlife species and conflicts among competing water users. As with the Corps of Engineers, the Reclamation budget is made up largely of individual project funding lines and relatively few "programs." Also similar to the Corps, these Reclamation projects have often been subject to earmark disclosure rules. The current moratorium on earmarks restricts congressional steering of money directly toward specific Reclamation projects as had been done in the past. Reclamation's single largest account, Water and Related Resources, encompasses the agency's traditional programs and projects, including construction, operations and maintenance, dam safety, and ecosystem restoration, among others. Reclamation also typically requests funds in a number of smaller accounts, and has proposed additional accounts in recent years. Congress has provided Reclamation additional appropriations in recent years to address drought conditions in the West, including $50 million in additional funding for Western Drought Response in FY2015. Implementation and oversight of the Central Utah Project (CUP) is conducted by a separate office from Reclamation within the Department of the Interior. The Administration has proposed for several years to shift those responsibilities to Reclamation. For more information, see CRS In Focus IF10175, Bureau of Reclamation: FY2016 Appropriations , by [author name scrubbed]. The Energy and Water Development bill has funded all DOE programs since FY2005. Major DOE activities include research and development (R&D) on renewable energy, energy efficiency, nuclear power, and fossil energy, the Strategic Petroleum Reserve, energy statistics, general science, environmental cleanup, and nuclear weapons and nonproliferation programs. Table 6 provides the recent funding history for DOE programs, which are briefly described further below. DOE's full budget justifications are available at http://energy.gov/cfo/reports/budget-justification-supporting-documents . President Obama has declared energy efficiency and renewable energy (EERE) to be a high priority, stressing their importance to jobs, economic growth, and U.S. manufacturing competitiveness. For example, the 2013 Economic Report of the President noted that "President Obama has set a goal of once again doubling generation from wind, solar, and geothermal sources by 2020." Congress has not supported most of the President's proposed annual funding increases, although a boost of about $150 million was approved for FY2016. The Sustainable Transportation program area includes hydrogen and fuel cell technologies, bioenergy, and vehicle technology. DOE's electric vehicle program is driven by the 10-year EV-Everywhere Challenge (launched in 2012), which aims to achieve parity for plug-in electric vehicle (EV) affordability and convenience by 2022. A key supporting technology goal is to cut battery production cost from $300/kilowatt-hour (kwh) of battery capacity in 2014 to $125/kwh by 2022. The fuel cell program targets a cost below $40 per kilowatt (kw) and a durability of 5,000 hours (equivalent to 150,000 miles) by 2020. For hydrogen produced from renewable resources, the target is to bring the cost (dispensed and untaxed) below $4.00 per gasoline gallon-equivalent (gge) by 2020. Bioenergy goals include the development of "drop-in" liquid fuels that would be largely compatible with existing energy infrastructure. The program aims to help the non-food "drop-in" biofuels reach a wholesale finished-fuel cost under $3 per gge by 2017 and $3/gge for algal biomass productivity by 2020. Renewable energy programs focus on electricity generation from solar, wind, water, and geothermal sources. DOE's SunShot Initiative is aimed at halving the cost of solar power to 6 cents per kwh to make solar power cost-competitive without subsidies by 2020. There are three key goals for the wind program. First, for land-based windfarms, there is a goal for the energy cost of utility-scale turbines to drop from 8 cents to 5.7 cents/kwh by 2020 and 4.2 cents/kwh by 2030. Second, for offshore settings, the goal is to cut energy costs from 21 cents/kwh in 2010 to 17 cents/kwh (unsubsidized) by 2020. Third, there is an overall goal to increase installed windfarm capacity from 60 billion watts (gigawatts, gw) in 2012 to 125 gw by 2020 and 300 gw by 2030. The geothermal program aims to lower the risk of resource exploration and cut power production costs to 6 cents/kwh for hydrothermal power by 2020 and for newly developed technologies by 2030. In the energy efficiency program area, the advanced manufacturing program has a general goal of reducing the energy use of manufactured goods across targeted product life-cycles by 50% over 10 years. More specific objectives include (1) 50% energy savings through advanced materials and industrial processes, (2) helping leading companies cut energy intensity by 25% over 10 years, and (3) facilitating installation of 40 gigawatts of combined heat and power equipment by 2020. The building technologies program has a goal of reducing building energy use 50% by 2030. The program strategy is designed with three linked paths: Improve building components (envelope/windows, heating/ventilation/air conditioning, lighting, and sensors/controls), strengthen market demand (through cooperation with private industry), and raise energy efficiency levels for new equipment (via standards) and new buildings (via model codes). The EERE program also provides grants to fund energy efficiency improvements and energy planning. Weatherization grants support state and local governments in providing home energy services to low-income families that help them reduce energy costs and save money. State energy grants support both administrative and program activities at many state energy offices. The DOE Office of Electricity Delivery and Energy Reliability (OE) has the mission of supporting more economically competitive, environmentally responsible, secure, and resilient U.S. energy infrastructure. To achieve that mission, OE supports electric grid modernization and resiliency through research and development (R&D), demonstration projects, partnerships, facilitation, modeling and analytics, and emergency preparedness and response. It is the federal government's lead entity for energy sector-specific responses to energy security emergencies—whether caused by physical infrastructure problems or by cybersecurity issues. DOE's 2015 Grid Modernization Multi-Year Program Plan describes the Department's vision for "a future electric grid that provides a critical platform for U.S. prosperity, competitiveness, and innovation by delivering reliable, affordable, and clean electricity to consumers where they want it, when they want it, how they want it." To help achieve this vision, DOE has established three key national goals: 10% reduction in the economic costs of power outages by 2025; 33% decrease in the cost of reserve margins while maintaining reliability by 2025; and 50% decrease in the net integration costs of distributed energy resources by 2025. For more details, see CRS Report R44357, DOE's Office of Electricity Delivery and Energy Reliability (OE): A Primer, with Appropriations for FY2016 , by [author name scrubbed]. DOE's nuclear energy program has four major stated goals: Improve the safety, reliability, and economics of nuclear power plants; Implement a "consent based" strategy for developing nuclear waste storage and disposal facilities; Develop improved waste management and fuel cycle technologies; and Understand and minimize the risks of nuclear proliferation and terrorism. The Reactor Concepts program area includes research on advanced reactors, including advanced small modular reactors, and research to enhance the "sustainability" of existing commercial light water reactors. Advanced reactor research focuses on "Generation IV" reactors, as opposed to the existing fleet of commercial light water reactors, which are generally classified as generations II and III. Nuclear technology development under this program focuses on "fast reactors," using high-energy neutrons, fluoride salt-cooled high-temperature reactors, and high temperature gas-cooled reactors. Cost-shared research with the nuclear industry is also conducted on extending the life of existing commercial light water reactors beyond 60 years, the maximum operating period currently licensed by the Nuclear Regulatory Commission (NRC). This subprogram is also conducting research to understand the Fukushima disaster and to develop accident prevention and mitigation measures. The nuclear energy program also provides design and licensing funding for small modular reactors (SMRs), which range from about 40 to 300 megawatts of electrical capacity. Support under this subprogram is currently being provided to the NuScale Power SMR, which has a generating capacity of 50 megawatts. Under the company's current concept, up to 12 reactors would be housed in a single pool of water, which would provide emergency cooling. The NuScale SMR is intended to be ready for commercial operation by around 2025, according to DOE. The Fuel Cycle Research and Development program conducts "long-term, science-based" research on a wide variety of technologies for improving the management of spent nuclear fuel, according to DOE. In general, the program is investigating ways to separate radioactive constituents of spent fuel for re-use or to be bonded into stable waste forms. Within this subprogram, DOE is also conducting work toward establishing a new spent fuel management system, consistent with the Administration's moves to terminate the previously authorized waste repository program at Yucca Mountain in Nevada. Other major research areas in the Fuel Cycle R&D program include the development of accident-tolerant fuels for existing commercial reactors, evaluation of fuel cycle options, development of improved technologies to prevent diversion of nuclear materials for weapons, and technology to increase nuclear fuel resources, such as uranium extraction from seawater. DOE's Fossil Energy R&D Program focuses primarily on carbon capture and storage for coal-fired power systems. Major activities include the following: Carbon Capture subprogram for separating CO 2 in both pre-combustion and post-combustion systems; Carbon Storage subprogram on long-term geologic storage of CO 2 , including small- and large-scale CO 2 injection tests; Advanced Energy Systems subprogram on improving availability and efficiency of fossil energy systems integrated with CO 2 capture. The sub-program focuses on gasification, oxy-combustion, advanced turbines, and other energy systems. Cross-Cutting Research on innovative systems; Supercritical Transformational Electric Power (STEP) Generation Program, developing technology to replace the conventional steam cycle in electric turbine-generators with supercritical carbon dioxide; and Natural Gas Technologies R&D, with a focus on environmentally sound technologies for shale gas development. The Strategic Petroleum Reserve (SPR), authorized by the Energy Policy and Conservation Act ( P.L. 94-163 ) in 1975, consists of caverns built within naturally occurring salt domes in Louisiana and Texas. The SPR provides strategic and economic security against foreign and domestic disruptions in U.S. oil supplies via an emergency stockpile of crude oil. The program fulfills U.S. obligations under the International Energy Program, which avails the United States of International Energy Agency (IEA) assistance through its coordinated energy emergency response plans, and provides a deterrent against energy supply disruptions. By early 2010, the SPR's capacity reached 727 million barrels. The federal government has not purchased oil for the SPR since 1994. Beginning in 2000, additions to the SPR were made with royalty-in-kind (RIK) oil acquired by the Department of Energy in lieu of cash royalties paid on production from federal offshore leases. In September 2009, the Secretary of the Interior announced a transitional phasing out of the RIK Program. DOE has been conducting a major maintenance program to address aging infrastructure and a deferred maintenance backlog at SPR facilities. In the summer of 2011, the President ordered an SPR sale in coordination with an International Energy Administration sale under treaty obligation because of Libya's supply curtailment. The U.S. sale of 30.6 million barrels reduced the SPR inventory to 695.9 million barrels. In March 2014, DOE's Office of Petroleum Reserves conducted a test sale that delivered 5.0 million barrels of crude oil over a 47-day period that netted $468.6 million in cash receipts to the U.S. government (SPR Petroleum Account). The DOE Office of Science conducts basic research in six program areas: advanced scientific computing research, basic energy sciences, biological and environmental research, fusion energy sciences, high-energy physics, and nuclear physics. Through (primarily) these programs, DOE was the third-largest federal funder of basic research and the largest federal funder of research in the physical sciences in FY2014. DOE's Advanced Scientific Computing Research (ASCR) program focuses on developing and maintaining computing and networking capabilities for science and research in applied mathematics, computer science, and advanced networking. The program plays a key role in the DOE-wide effort to advance the development of exascale computing, which seeks to build a computer that can solve scientific problems a thousand times faster than today's best machines. DOE leadership asserts that the department is on a path to have a capable exascale machine by the early 2020s. Basic Energy Sciences (BES), the largest program area in the Office of Science, focuses on understanding, predicting, and ultimately controlling matter and energy at the electronic, atomic, and molecular level. The program supports research in disciplines such as condensed matter and materials physics, chemistry, and geosciences. BES also provides funding for scientific user facilities (e.g., the National Synchrotron Light Source II, which began transitioning from construction to operation in FY2015, and the Linac Coherent Light Source-II), and certain DOE research centers and hubs (e.g., Energy Frontier Research Centers, as well as the Batteries and Energy Storage and Fuels from Sunlight Innovation Hubs). Biological and Environmental Research (BER) seeks a predictive understanding of complex biological, climate, and environmental systems across a continuum from the small scale (e.g., genomic research) to the large (e.g., Earth systems and climate). Within BER, Biological Systems Science focuses on plant and microbial systems, while Biological and Environmental Research supports climate-relevant atmospheric and ecosystem modeling and research. BER facilities and centers include three Bioenergy Research Centers and the Environmental Molecular Science Laboratory at Pacific Northwest National Laboratory. Fusion Energy Sciences (FES) seeks to increase understanding of the behavior of matter at very high temperatures and to establish the science needed to develop a fusion energy source. FES provides funding for the ITER project, a multi-national effort to design and build an experimental fusion reactor. According to DOE, ITER "aims to generate fusion power 30 times the levels produced to date and to exceed the external power applied … by at least a factor of ten." However, many U.S. analysts have expressed concern about ITER's cost, schedule, and management, as well as the budgetary impact on domestic fusion research. The High Energy Physics (HEP) program conducts research on the fundamental constituents of matter and energy, including studies of dark energy and the search for dark matter. The FY2016 HEP budget request sought to align the program with the recommendations of the Particle Physics Project Prioritization Panel (P5) report. Nuclear Physics supports research on the nature of matter, including its basic constituents and their interactions. A major project in the Nuclear Physics program is the construction of the Facility for Rare Isotope Beams at Michigan State University. Nearing completion is the Continuous Electron Beam Accelerator Facility Upgrade project. For more details, see CRS Report R43963, DOE's Office of Science and the FY2016 Budget Request , by [author name scrubbed]. The Advanced Research Projects Agency–Energy (ARPA-E) was authorized by the America COMPETES Act ( P.L. 110-69 ) to support transformational energy technology research projects. DOE budget documents describe ARPA-E's mission as overcoming long-term, high-risk technological barriers to the development of energy technologies. For more details, see CRS Report R43986, ARPA-E and the FY2016 Budget Reques t , by [author name scrubbed]. DOE's Loan Programs Office provides loan guarantees for projects that deploy specified energy technologies, as authorized by Title XVII of the Energy Policy Act of 2005 (EPACT05, P.L. 109-58 ), and direct loans for advanced vehicle manufacturing technologies. Section 1703 of the act authorizes loan guarantees for advanced energy technologies that reduce greenhouse gas releases, and Section 1705 established a temporary program for renewable energy and energy efficiency projects. Title XVII allows DOE to provide loan guarantees for up to 80% of construction costs for eligible energy projects. Successful applicants must pay an up-front fee, or "subsidy cost," to cover potential losses under the loan guarantee program. Under the loan guarantee agreements, the federal government would repay all covered loans if the borrower defaulted. This would reduce the risk to lenders and allow them to provide financing at below-market interest rates. The following is a summary of loan guarantee amounts available for various technologies: $8.3 billion for non-nuclear technologies under Section 1703; $2 billion for unspecified projects from FY2007 under Section 1703; $18.5 billion ceiling for nuclear power plants ($8.3 billion committed); $4 billion allocated for loan guarantees for uranium enrichment plants; $1.183 billion ceiling for renewable energy and energy efficiency projects under Section 1703, in addition to other ceiling amounts, which can include applications that were pending under Section 1705 before it expired; and An appropriation of $170 million for subsidy costs for renewable energy and energy efficiency loan guarantees under Section 1703. If the subsidy costs averaged 10% of the loan guarantees, this funding could leverage loan guarantees totaling $1.7 billion. Congress established the Stockpile Stewardship Program in the FY1994 National Defense Authorization Act ( P.L. 103-160 ). The goal of the program, as amended by the FY2010 National Defense Authorization Act ( P.L. 111-84 , §3111), is to ensure "that the nuclear weapons stockpile is safe, secure, and reliable without the use of underground nuclear weapons testing." The program is operated by the National Nuclear Security Administration (NNSA), a semiautonomous agency within DOE that Congress established in the FY2000 National Defense Authorization Act ( P.L. 106-65 , Title XXXII). Stockpile stewardship consists of all activities in NNSA's Weapons Activities account. Most stewardship activities take place at the nuclear weapons complex (the "complex"), which consists of three laboratories (Los Alamos National Laboratory, NM; Lawrence Livermore National Laboratory, CA; and Sandia National Laboratories, NM and CA); four production sites (Kansas City National Security Campus, MO; Pantex Plant, TX; Savannah River Site, SC; and Y-12 National Security Complex, TN); and the Nevada National Security Site (formerly Nevada Test Site). NNSA manages and sets policy for the complex; contractors to NNSA operate the eight sites. Directed Stockpile Work involves work directly on nuclear weapons in the stockpile, such as monitoring their condition; maintaining them through repairs, refurbishment, life extension, and modifications; conducting R&D in support of specific warheads; and dismantlement. The number of warheads has fallen sharply since the end of the Cold War, and continues to decline. As a result, a major activity of Directed Stockpile Work is interim storage of warheads to be dismantled; dismantlement; and disposition (i.e., storing or eliminating warhead components and materials). Campaigns are "multi-year, multi-functional efforts" that "provide specialized scientific knowledge and technical support to the directed stockpile work on the nuclear weapons stockpile." Many campaigns have significance for policy decisions. For example, the Science Campaign's goals include improving the ability to assess warhead performance without nuclear testing, improving readiness to conduct nuclear tests should the need arise, and maintaining the scientific infrastructure of the nuclear weapons laboratories. Campaigns also fund some large experimental facilities, such as the National Ignition Facility at Lawrence Livermore National Laboratory. Note that P.L. 113-235 renamed "Campaigns" as "Research, Development, Test, and Evaluation." Infrastructure and Operations (formerly Readiness in Technical Base and Facilities) has as its main funding elements material recycle and recovery, recapitalization of facilities, and construction of facilities. The latter included two controversial and expensive projects, the Uranium Processing Facility (UPF) at the Y-12 National Security Complex (TN) and the Chemistry and Metallurgy Research Replacement (CMRR) Project, which deals with plutonium, at Los Alamos National Laboratory (NM). Weapons Activities also has several smaller programs, including the following: Secure Transportation Asset, providing for safe and secure transport of nuclear weapons, components, and materials. Site Stewardship seeks to "bring focus on environmental compliance, nuclear materials disposition and developing the needed skills and talent for NNSA's enduring technical workforce at the laboratories and production plants." Defense Nuclear Security provides operations, maintenance, and construction funds for protective forces, physical security systems, personnel security, and related activities. Information Technology and Cybersecurity elements include cybersecurity, enterprise secure computing, and Federal Unclassified Information Technology. Legacy Contractor Pensions provides supplemental funds for pensions for retirees from Los Alamos and Lawrence Livermore National Laboratories who began employment when the University of California was the contractor for those labs. For more information, see CRS Report R43948, Energy and Water Development: FY2016 Appropriations for Nuclear Weapons Stockpile Stewardship , by [author name scrubbed]. DOE's nonproliferation and national security programs provide technical capabilities to support U.S. efforts to prevent, detect, and counter the spread of nuclear weapons worldwide. These nonproliferation and national security programs are administered by NNSA's Office of Defense Nuclear Nonproliferation, which was reorganized in 2015. Global Materials Security has two major program elements. The "First Line of Defense" focuses on increasing the security of vulnerable stockpiles of nuclear material in other countries. The "Second Line of Defense" is intended to "improve partner countries' abilities to deter, detect, and interdict illicit trafficking," according to DOE's FY2016 budget justification. Activities toward achieving those goals include the provision of equipment and training, workshops and exercises, and collaboration with international organizations. Materials Management and Minimization conducts activities to minimize and, where possible, eliminate stockpiles of weapons-useable material around the world. Major activities include conversion of reactors that use highly enriched uranium (useable for weapons) to low enriched uranium, removal and consolidation of nuclear material stockpiles, and disposition of excess nuclear materials. Nonproliferation and Arms Control works on "strengthening the nonproliferation and arms control regimes in order to reduce proliferation and terrorism risks," according to the FY2016 justification. This program conducts reviews of nuclear export applications and technology transfer authorizations, implements treaty obligations, and analyzes nonproliferation policies and proposals. Other programs under Defense Nuclear Nonproliferation include research and development and construction. The Nonproliferation Construction program consists of the Mixed Oxide (MOX) Fuel Fabrication Facility (described under "Funding Issues" above), which is being built in South Carolina to convert surplus weapons plutonium into nuclear reactor fuel. DOE also proposed for FY2016 to transfer counterterrorism and counterproliferation programs from the Weapons Activities appropriations account to Defense Nuclear Nonproliferation. According to the budget justification, "These transfers align all NNSA funding to prevent, counter, and respond to nuclear proliferation and terrorism in one appropriation." The change was approved in the P.L. 114-113 explanatory statement. The development and production of nuclear weapons for national defense purposes during half a century since the beginning of the Manhattan Project resulted in a legacy of wastes and contamination that continues to present substantial challenges today. In 1989, DOE established the Office of Environmental Management primarily to consolidate its responsibilities for the cleanup of former nuclear weapons production sites that had been administered under multiple offices. DOE's nuclear cleanup efforts are broad in scope and include the disposal of large quantities of radioactive and other hazardous wastes generated over decades; management and disposal of surplus nuclear materials; remediation of extensive contamination in soil and groundwater; decontamination and decommissioning of excess buildings and facilities; and safeguarding, securing, and maintaining facilities while cleanup is underway. The Office of Environmental Management also is responsible for the cleanup of DOE sites that were involved in civilian nuclear energy research, which also generated wastes and contamination. These research sites add a non-defense component to the office's mission, albeit smaller in terms of the scope of their cleanup and associated funding. DOE has identified more than 100 "geographic" sites in over 30 states that historically were involved in the production of nuclear weapons and nuclear energy research for civilian purposes. The geographic scope of these sites is substantial, collectively encompassing a land area of approximately 2 million acres. Cleanup remedies are in place and operational at the majority of these sites. The responsibility for the long-term stewardship of these sites has been transferred to the Office of Legacy Management and other offices within DOE for the operation and maintenance of cleanup remedies and monitoring. Some of the smaller sites for which DOE initially was responsible were transferred to the Army Corps of Engineers in 1997 under the Formerly Utilized Sites Remedial Action Program (FUSRAP). Once the Corps completes the cleanup of a FUSRAP site, it is transferred back to DOE for long-term stewardship under the Office of Legacy Management. Much work remains to be done at the sites that are still administered by the Office of Environmental Management. DOE expects cleanup to continue for several years or even decades at some of these sites, and estimates additional cumulative funding needs ranging from $191.6 billion to $224.3 billion over the long-term to fulfill the cleanup liability of the United States. The Office of Environmental Management has completed the cleanup of 91 sites in 30 states and the Commonwealth of Puerto Rico, and plans to continue the cleanup of 16 sites in 11 states in FY2016. Three appropriations accounts fund the Office of Environmental Management. The Defense Environmental Cleanup account is the largest in terms of funding, and it finances the cleanup of former nuclear weapons production sites. The Non-Defense Environmental Cleanup account funds the cleanup of federal nuclear energy research sites. Title XI of the Energy Policy Act of 1992 ( P.L. 102-486 ) established the Uranium Enrichment Decontamination and Decommissioning (D&D) Fund to pay for the cleanup of three federal facilities that enriched uranium for national defense and civilian purposes. Title X of P.L. 102-486 also authorized the reimbursement of uranium and thorium licensees for their costs of cleaning up contamination at sites that processed nuclear materials for national defense purposes at these federal facilities. The three federal uranium enrichment facilities are located near Paducah, KY; Piketon, OH (Portsmouth plant); and Oak Ridge, TN. The adequacy of funding for the Office of Environmental Management to attain cleanup milestones across the entire site inventory has been a recurring issue. Cleanup milestones are enforceable measures incorporated into compliance agreements negotiated among DOE, EPA, and the states. These milestones establish time frames for the completion of specific actions to satisfy applicable requirements at individual sites. DOE's four Power Marketing Administrations (PMAs)—Bonneville Power Administration (BPA), Southeastern Power Administration (SEPA), Southwestern Power Administration (SWPA), and Western Area Power Administration (WAPA)—were established to sell the power generated by the dams operated by the Bureau of Reclamation and the Army Corps of Engineers. The primary purpose of these projects in many cases was conservation and management of water resources—including irrigation, flood control, recreation, or other objectives. (For more information, see CRS Report RS22564, Power Marketing Administrations: Background and Current Issues , by [author name scrubbed].) Independent agencies that receive funding from the Energy and Water Development bill include the Nuclear Regulatory Commission (NRC), the Appalachian Regional Commission (ARC), and the Denali Commission. Their recent appropriations history is shown in Table 7 . Congress for the first time included control points within the overall NRC appropriation in enacting P.L. 114-113 and also reduced the agency's total spending level by $12 million from FY2015. The Explanatory Statement for the omnibus measure provides $760.0 million for Nuclear Reactor Safety, $15.0 million for Integrated University Programs, $172.0 million for Nuclear Materials and Waste Safety, and $43.0 million for Decommissioning and Low-Level Waste. The largest three control points include specific limits on the amount that can be used for "corporate support." Sec. 402 of the omnibus measure establishes new reprogramming authority in conjunction with the control points. Also included in the Explanatory Statement is a requirement that NRC staff receive approval from the NRC commissioners before committing resources to new rulemaking activities. The following hearings were held by the Energy and Water Development subcommittees of the House and Senate Appropriations Committees on the FY2016 budget request. Testimony and opening statements are posted on most of the web pages cited for each hearing, along with webcasts in many cases. Army Corps of Engineers, Civil Works , February 11, 2015, http://appropriations.house.gov/calendararchive/eventsingle.aspx?EventID=393968 . Bureau of Reclamation , February 12, 2015, http://appropriations.house.gov/calendararchive/eventsingle.aspx?EventID=393969 . Department of Energy , February 26, 2015, http://appropriations.house.gov/calendararchive/eventsingle.aspx?EventID=393992 . Department of Energy, National Nuclear Security Administration, Weapons Activities , March 4, 2015, http://appropriations.house.gov/calendararchive/eventsingle.aspx?EventID=394016 . Department of Energy, Applied Energy Programs , March 17, 2015, http://appropriations.house.gov/calendararchive/eventsingle.aspx?EventID=394035 . Department of Energy, Office of Science , March 17, 2015, http://appropriations.house.gov/calendararchive/eventsingle.aspx?EventID=394041 . Department of Energy, Environmental Management , March 18, 2015, http://appropriations.house.gov/calendararchive/eventsingle.aspx?EventID=394044 . Nuclear Regulatory Commission , March 24, 2015, http://appropriations.house.gov/calendar/eventsingle.aspx?EventID=394071 .National Nuclear Security Administration, Nuclear Nonproliferation and Naval Reactors , March 25, 2015, http://appropriations.house.gov/calendar/eventsingle.aspx?EventID=394081 . Army Corps of Engineers and Bureau of Reclamation , February 11, 2015, http://www.appropriations.senate.gov/hearings-and-testimony/energy-water-development-subcommittee-fy16-army-corps-engineers-bureau . Nuclear Regulatory Commission , March 4, 2015, http://www.appropriations.senate.gov/hearings-and-testimony/energy-water-development-subcommittee-fy16-nuclear-regulatory-commission . National Nuclear Security Administration , March 11, 2015, http://www.appropriations.senate.gov/hearings-and-testimony/energy-water-development-subcommittee-fy16-national-nuclear-security . Department of Energy , March 25, 2015, http://www.appropriations.senate.gov/event/energy-water-development-subcommittee-hearing-fy16-us-department-energy-budget .

Summary: The Energy and Water Development appropriations bill provides funding for Army Corps of Engineers (Corps) civil works projects, the Department of the Interior's Bureau of Reclamation (Reclamation), and the Department of Energy (DOE), as well as the Nuclear Regulatory Commission (NRC) and several other independent agencies. DOE typically accounts for about 80% of the bill's total funding. President Obama's FY2016 budget request was released February 2, 2015. Including adjustments, the request for Energy and Water Development agencies totaled $36.04 billion, compared with a total of $34.78 billion appropriated for FY2015, an increase of 3.6%. The House approved its version of the FY2016 Energy and Water Development Appropriations bill on May 1, 2015 (H.R. 2028, H.Rept. 114-91), and the Senate Appropriations Committee followed on May 21, 2015 (H.R. 2028, S.Rept. 114-54); both bills provided total budget authority of about $35.4 billion. After lengthy negotiations, Congress enacted an omnibus funding measure on December 18, 2015, the Consolidated Appropriations Act, 2016 (H.R. 2029, P.L. 114-113). The omnibus measure provided a total of $37.3 billion for energy and water programs for FY2016, an increase of 7.3% over FY2015. Major Energy and Water Development funding highlights for FY2016 included Waters of the United States. Language to block a controversial rulemaking to define "waters of the United States" was considered but not adopted; Energy Efficiency in Manufacturing and Vehicles. DOE's energy efficient manufacturing research would have more than doubled and research on energy efficient vehicles would have risen 59% under the FY2016 budget request, but smaller increases were approved; Nuclear Waste Management. The House approved $175 million for the statutorily authorized candidate disposal site at Yucca Mountain, NV, while the Senate Appropriations Committee would have authorized and funded an interim storage pilot facility, but none of those provisions were adopted; ITER Fusion Reactor. Cost, schedule, and management concerns were raised about the International Thermonuclear Experimental Reactor (ITER); Nuclear Weapons Activities. Congress approved the Administration's requested 10.7% increase for weapons activities and a proposal to combine and transfer two counterterrorism programs within DOE's National Nuclear Security Administration; Waste Isolation Pilot Plant (WIPP) Recovery. Efforts to resume operations at the WIPP defense transuranic waste repository in New Mexico are to continue in FY2016 with decreased total funding; and Surplus Plutonium Disposition. Level funding was approved, as requested, for a multibillion-dollar plant to convert surplus nuclear weapons plutonium into civilian nuclear reactor fuel. For FY2015, appropriations for Energy and Water Development programs were included in the Consolidated and Further Continuing Appropriations Act, 2015 (H.R. 83, Division D). For details, see CRS Report R43567, Energy and Water Development: FY2015 Appropriations, coordinated by [author name scrubbed].