Congress | National Institute of Environmental Health Sciences Skip Navigation Congress Close the left navigation Add Table of Contents Congressional Justifications and Statements NIEHS Research Portfolio Report on Carcinogens (ROC): 15th Edition Strategic Plans Public Laws Related Links NIEHS is funded through an annual appropriation by Congress. The Office of Policy, Planning and Evaluation (OPPE) supports the NIEHS director and staff in defining and interpreting programs and research of the institute to Congress, as well as to the public, scientific, and public health communities. OPPE also serves as a liaison to help ensure NIEHS accessibility and responsiveness to Congress, various government, health, and science agencies and organizations, and the public. Congressional Justifications and Statements As part of the budget process, NIEHS annually submits a Congressional Justification to be included in the President's budget. Then Congressional subcommittees conduct hearings on the accomplishments and needs of NIEHS before approving its budget request. A separate Congressional Justification is submitted for the Superfund Research Program. The NIEHS budget supports extensive extramural research and a dynamic intramural research program including clinical research in the effects of the environment on disease. In addition, NIEHS funds education and training opportunities to foster the development of the next generation of environmental scientists. Congressional Justification - Disclaimer Note: Budget requests for years prior to FY 2026 were submitted by prior Administrations and may not reflect current HHS policy. Fiscal Year 2025 Congressional Justification and Superfund Congressional Justification Fiscal Year 2024 Congressional Justification and Superfund Congressional Justification Fiscal Year 2023 Congressional Justification and Superfund Congressional Justification Fiscal Year 2022 Congressional Justification and Superfund Congressional Justification Fiscal Year 2021 Congressional Justification and Superfund Congressional Justification Fiscal Year 2020 Congressional Justification and Superfund Congressional Justification NIEHS Research Portfolio Information on the research funded by NIEHS is available through the NIH Research Portfolio Online Reporting Tools ( RePORT (http://report.nih.gov/) Report on Carcinogens (ROC): 15th Edition 15th Report on Carcinogens Strategic Plans NTP Vision: Toxicology in the 21st Century: The Role of the National Toxicology Program Public Laws Access to full text of federal laws relevant to environmental health sciences research, public health, and occupational health. Related Links Freedom of Information Act Back to Top Last Reviewed: March 13, 2026