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Title 42

Displaying title 42, up to date as of 8/05/2026. Title 42 was last amended 8/05/2026.
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NEPA Process

§ 137.285 Are Self-Governance Tribes required to accept Federal environmental responsibilities to enter into a construction project agreement?

Yes, under section 509 of the Act [25 U.S.C. 458aaa-8], Self-Governance Tribes must assume all Federal responsibilities under the NEPA of 1969 [42 U.S.C. 4321 et seq.] and the National Historic Preservation Act [16 U.S.C. 470 et seq.] and related provisions of law that would apply if the Secretary were to undertake a construction project, but only those responsibilities directly related to the completion of the construction project being assumed.

§ 137.286 Do Self-Governance Tribes become Federal agencies when they assume these Federal environmental responsibilities?

No, while Self-Governance Tribes are required to assume Federal environmental responsibilities for projects in place of the Secretary, Self-Governance Tribes do not thereby become Federal agencies. However, because Self-Governance Tribes are assuming the responsibilities of the Secretary for the purposes of performing these Federal environmental responsibilities, Self-Governance Tribes will be considered the equivalent of Federal agencies for certain purposes as set forth in this subpart.

§ 137.287 What is the National Environmental Policy Act (NEPA)?

The NEPA is a procedural law that requires Federal agencies to follow established environmental review procedures, which include reviewing and documenting the environmental impact of their actions. NEPA establishes a comprehensive policy for protection and enhancement of the environment by the Federal Government; creates the Council on Environmental Quality in the Office of the President; and directs Federal agencies to carry out the policies and procedures of the Act. CEQ regulations (40 CFR 1500-1508) establish three levels of environmental review: categorical exclusions, environmental assessments, and environmental impact statements.

§ 137.288 What is the National Historic Preservation Act (NHPA)?

The NHPA requires Federal agencies to take into account the effects of their undertakings, such as construction projects, on properties covered by the NHPA, such as historic properties, properties eligible for listing on the National Register of Historic Places, or properties that an Indian Tribe regards as having religious and/or cultural importance. Section 106 of the NHPA [16 U.S.C. 470f] requires Federal agencies to afford the Advisory Council on Historic Preservation, acting through the SHPO or the THPO, a reasonable opportunity to comment on such undertakings.

§ 137.289 What is a Federal undertaking under NHPA?

The Advisory Council on Historic Preservation has defined a Federal undertaking in 36 CFR 800.16(y) as a project, activity, or program funded in whole or in part under the direct or indirect jurisdiction of a Federal agency, including those carried out by or on behalf of a Federal agency; those carried out with Federal financial assistance; those requiring a Federal permit, license or approval; and those subject to State or local regulation administered pursuant to a delegation or approval by a Federal agency.

§ 137.290 What additional provisions of law are related to NEPA and NHPA?

(a) Depending upon the nature and the location of the construction project, environmental laws related to NEPA and NHPA may include:

(1) Archaeological and Historical Data Preservation Act [16 U.S.C. 469];

(2) Archeological Resources Protection Act [16 U.S.C. 470aa];

(3) Clean Air Act [42 U.S.C. 7401];

(4) Clean Water Act [33 U.S.C. 1251];

(5) Coastal Barrier Improvement Act [42 U.S.C. 4028 and 16 U.S.C. Sec. 3501];

(6) Coastal Barrier Resources Act [16 U.S.C. 3501];

(7) Coastal Zone Management Act [16 U.S.C. 1451];

(8) Comprehensive Environmental Response, Compensation, and Liability Act [42 U.S.C. 9601];

(9) Endangered Species Act [16 U.S.C. 1531 et seq.];

(10) Farmland Protection Policy Act [7 U.S.C. 4201 et seq.];

(11) Marine Protection, Research, and Sanctuaries Act [33 U.S.C. 1401-1445; 16 U.S.C. 1431-1447F; 33 U.S.C. 2801-2805];

(12) National Historic Preservation Act [16 U.S.C. 470 et seq.];

(13) National Trails System Act [16 U.S.C. 1241];

(14) Native American Graves Protection and Repatriation Act [25 U.S.C. 3001];

(15) Noise Control Act [42 U.S.C.4901];

(16) Resource Conservation and Recovery Act [42 U.S.C. 6901];

(17) Safe Drinking Water Act [42 U.S.C. 300F];

(18) Toxic Substance Control Act [15 U.S.C. 2601];

(19) Wild and Scenic Rivers Act [16 U.S.C. 1271]; and

(20) Wilderness Act [16 U.S.C. 1131].

(b) This section provides a list of environmental laws for informational purposes only and does not create any legal rights or remedies, or imply private rights of action.

§ 137.291 May Self-Governance Tribes carry out construction projects without assuming these Federal environmental responsibilities?

Yes, but not under section 509 of the Act [25 U.S.C. 458aaa-8]. Self-Governance Tribes may otherwise elect to perform construction projects, or phases of construction projects, under other legal authorities (see § 137.272).

§ 137.292 How do Self-Governance Tribes assume environmental responsibilities for construction projects under section 509 of the Act [25 U.S.C. 458aaa-8]?

Self-Governance Tribes assume environmental responsibilities by:

(a) Adopting a resolution or taking an equivalent Tribal action which:

(1) Designates a certifying officer to represent the Self-Governance Tribe and to assume the status of a responsible Federal official under NEPA, NHPA, and related provisions of law; and

(2) Accepts the jurisdiction of the Federal court, as provided in § 137.310 and § 137.311 for purposes of enforcement of the Federal environmental responsibilities assumed by the Self-Governance Tribe; and

(b) Entering into a construction project agreement under section 509 of the Act [25 U.S.C. 458aaa-8].

§ 137.293 Are Self-Governance Tribes required to adopt a separate resolution or take equivalent Tribal action to assume environmental responsibilities for each construction project agreement?

No, the Self-Governance Tribe may adopt a single resolution or take equivalent Tribal action to assume environmental responsibilities for a single project, multiple projects, a class of projects, or all projects performed under section 509 of the Act [25 U.S.C. 458aaa-8].

§ 137.294 What is the typical IHS environmental review process for construction projects?

(a) Most IHS construction projects normally do not have a significant impact on the environment, and therefore do not require environmental impact statements (EIS). Under current IHS procedures, an environmental review is performed on all construction projects. During the IHS environmental review process, the following activities may occur:

(1) Consult with appropriate Tribal, Federal, state, and local officials and interested parties on potential environmental effects;

(2) Document assessment of potential environmental effects; (IHS has developed a form to facilitate this process.)

(3) Perform necessary environmental surveys and inventories;

(4) Consult with the Advisory Council on Historic Preservation, acting through the SHPO or THPO, to ensure compliance with the NHPA;

(5) Determine if extraordinary or exceptional circumstances exist that would prevent the project from meeting the criteria for categorical exclusion from further environmental review under NEPA, or if an environmental assessment is required;

(6) Obtain environmental permits and approvals; and

(7) Identify methods to avoid or mitigate potential adverse effects;

(b) This section is for informational purposes only and does not create any legal rights or remedies, or imply private rights of action.

§ 137.295 May Self-Governance Tribes elect to develop their own environmental review process?

Yes, Self-Governance Tribes may develop their own environmental review process or adopt the procedures of the IHS or the procedures of another Federal agency.

§ 137.296 How does a Self-Governance Tribe comply with NEPA and NHPA?

Self-Governance Tribes comply with NEPA and the NHPA by adopting and following:

(a) their own environmental review procedures;

(b) the procedures of the IHS; and/or

(c) the procedures of another Federal agency.

§ 137.297 If the environmental review procedures of a Federal agency are adopted by a Self-Governance Tribe, is the Self-Governance Tribe responsible for ensuring the agency's policies and procedures meet the requirements of NEPA, NHPA, and related environmental laws?

No, the Federal agency is responsible for ensuring its own policies and procedures meet the requirements of NEPA, NHPA, and related environmental laws, not the Self-Governance Tribe.

§ 137.298 Are Self-Governance Tribes required to comply with Executive Orders to fulfill their environmental responsibilities under section 509 of the Act [25 U.S.C. 458aaa-8]?

No, but Self-Governance Tribes may at their option, choose to voluntarily comply with Executive Orders. For facilities where ownership will vest with the Federal Government upon completion of the construction, Tribes and the Secretary may agree to include the goals and objectives of Executive Orders in the codes and standards of the construction project agreement.

§ 137.299 Are Federal funds available to cover the cost of Self-Governance Tribes carrying out environmental responsibilities?

Yes, funds are available:

(a) for project-specific environmental costs through the construction project agreement; and

(b) for environmental review program costs through a funding agreement and/or a construction project agreement.

§ 137.300 Since Federal environmental responsibilities are new responsibilities, which may be assumed by Tribes under section 509 of the Act [25 U.S.C. 458aaa-8], are there additional funds available to Self-Governance Tribes to carry out these formerly inherently Federal responsibilities?

Yes, the Secretary must transfer not less than the amount of funds that the Secretary would have otherwise used to carry out the Federal environmental responsibilities assumed by the Self-Governance Tribe.

§ 137.301 How are project and program environmental review costs identified?

(a) The Self-Governance Tribe and the Secretary should work together during the initial stages of project development to identify program and project related costs associated with carrying out environmental responsibilities for proposed projects. The goal in this process is to identify the costs associated with all foreseeable environmental review activities.

(b) If unforeseen environmental review and compliance costs are identified during the performance of the construction project, the Self-Governance Tribe or, at the request of the Self-Governance Tribe, the Self-Governance Tribe and the Secretary (with or without amendment as required by § 137.363) may do one or more of the following:

(1) Mitigate adverse environmental effects;

(2) Alter the project scope of work; and/or

(3) Add additional program and/or project funding, including seeking supplemental appropriations.

§ 137.302 Are Federal funds available to cover start-up costs associated with initial Tribal assumption of environmental responsibilities?

(a) Yes, start-up costs are available as provided in section 508(c) of the Act [25 U.S.C. 458aaa-7(c)]. During the initial year that these responsibilities are assumed, the amount required to be paid under section 106(a)(2) of the Act [25 U.S.C. 450j-1(a)(2)] must include startup costs consisting of the reasonable costs that have been incurred or will be incurred on a one-time basis pursuant to the agreement necessary:

(1) To plan, prepare for, and assume operation of the environmental responsibilities; and

(2) To ensure compliance with the terms of the agreement and prudent management.

(b) Costs incurred before the initial year that the agreement is in effect may not be included in the amount required to be paid under section 106(a)(2) of the Act [25 U.S.C. 450j-1(a)(2)] if the Secretary does not receive a written notification of the nature and extent of the costs prior to the date on which such costs are incurred.

§ 137.303 Are Federal or other funds available for training associated with Tribal assumption of environmental responsibilities?

Yes, Self-Governance Tribes may use construction program and project funds for training and program development. Training and program development funds may also be available from other Federal agencies, such as the Environmental Protection Agency and the National Park Service, state and local governments, and private organizations.

§ 137.304 May Self-Governance Tribes buy back environmental services from the IHS?

Yes, Self-Governance Tribes may “buy back” project related services in their construction project agreement, including design and construction engineering, and environmental compliance services from the IHS in accordance with Section 508(f) of the Act [25 U.S.C. 458aaa-7(f)] and § 137.95, subject to the availability of the IHS's capacity to conduct the work.

§ 137.305 May Self-Governance Tribes act as lead, cooperating, or joint lead agencies for environmental review purposes?

Yes, Self-Governance Tribes assuming Federal environmental responsibilities for construction projects under section 509 of the Act [25 U.S.C. 458aaa-8] are entitled to receive equal consideration, on the same basis as any Federal agency, for lead, cooperating, and joint lead agency status. For informational purposes, the terms “lead,” “cooperating,” and “joint lead agency” are defined in the CEQ regulations at 40 CFR 1508.16, 1508.5, and 1501.5 respectively.

§ 137.306 How are Self-Governance Tribes recognized as having lead, cooperating, or joint lead agency status?

Self-Governance Tribes may be recognized as having lead, cooperating, or joint lead agency status through funding or other agreements with other agencies. To the extent that resources are available, the Secretary will encourage and facilitate Federal, state, and local agencies to enter into agreements designating Tribes as lead, cooperating, or joint lead agencies for environmental review purposes.

§ 137.307 What Federal environmental responsibilities remain with the Secretary when a Self-Governance Tribe assumes Federal environmental responsibilities for construction projects under section 509 of the Act [25 U.S.C. 458aaa-8]?

(a) All environmental responsibilities for Federal actions not directly related to construction projects assumed by Tribes under section 509 of the Act [25 U.S.C. 458aaa-8] remain with the Secretary. Federal agencies, including the IHS, retain responsibility for ensuring their environmental review procedures meet the requirements of NEPA, NHPA and related provisions of law, as called for in § 137.297.

(b) The Secretary will provide information updating and changing IHS agency environmental review policy and procedures to all Self-Governance Tribes implementing a construction project agreement, and to other Indian Tribes upon request. If a Self-Governance Tribe participating under section 509 of the Act [25 U.S.C. 458aaa-8] does not wish to receive this information, it must notify the Secretary in writing. As resources permit, at the request of the Self-Governance Tribe, the Secretary will provide technical assistance to the Self-governance tribe to assist the Self-governance Tribe in carrying out Federal environmental responsibilities.

§ 137.308 Does the Secretary have any enforcement authority for Federal environmental responsibilities assumed by Tribes under section 509 of the Act [25 U.S.C. 458aaa-8]?

No, the Secretary does not have any enforcement authority for Federal environmental responsibilities assumed by Tribes under section 509 of the Act [25 U.S.C. 458aaa-8].

§ 137.309 How are NEPA and NHPA obligations typically enforced?

NEPA and NHPA obligations are typically enforced by interested parties who may file lawsuits against Federal agencies alleging that the agencies have not complied with their legal obligations under NEPA and NHPA. These lawsuits may only be filed in Federal court under the provisions of the APA, 5 U.S.C. 701-706. Under the APA, a Federal judge reviews the Federal agency's actions based upon an administrative record prepared by the Federal agency. The judge gives appropriate deference to the agency's decisions and does not substitute the court's views for those of the agency. Jury trials and civil discovery are not permitted in APA proceedings. If a Federal agency has failed to comply with NEPA or NHPA, the judge may grant declaratory or injunctive relief to the interested party. No money damages or fines are permitted in APA proceedings.

§ 137.310 Are Self-Governance Tribes required to grant a limited waiver of their sovereign immunity to assume Federal environmental responsibilities under section 509 of the Act [25 U.S.C. 458aaa-8]?

Yes, but only as provided in this section. Unless Self-Governance Tribes consent to the jurisdiction of a court, Self-Governance Tribes are immune from civil lawsuits. Self-Governance Tribes electing to assume Federal environmental responsibilities under section 509 of the Act [25 U.S.C. 458aaa-8] must provide a limited waiver of sovereign immunity solely for the purpose of enforcing a Tribal certifying officer's environmental responsibilities, as set forth in this subpart. Self-Governance Tribes are not required to waive any other immunity.

§ 137.311 Are Self-Governance Tribes entitled to determine the nature and scope of the limited immunity waiver required under section 509(a)(2) of the Act [25 U.S.C. 458aaa-8(a)(2)]?

(a) Yes, Section 509(a)(2) of the Act [25 U.S.C. 458aaa-8(a)(2)] only requires that the waiver permit a civil enforcement action to be brought against the Tribal certifying officer in his or her official capacity in Federal district court for declaratory and injunctive relief in a procedure that is substantially equivalent to an APA enforcement action against a Federal agency. Self-Governance Tribes are not required to subject themselves to suit in their own name, to submit to trial by jury or civil discovery, or to waive immunity for money damages, attorneys fees, or fines.

(b) Self-Governance Tribes may base the grant of a limited waiver under this subpart on the understanding that:

(1) Judicial review of the Tribal certifying official's actions are based upon the administrative record prepared by the Tribal official in the course of performing the Federal environmental responsibilities; and

(2) Actions and decisions of the Tribal certifying officer will be granted deference on a similar basis as Federal officials performing similar functions.

§ 137.312 Who is the proper defendant in a civil enforcement action under section 509(a)(2) of the Act [25 U.S.C. 458aaa-8(a)(2)]?

Only the designated Tribal certifying officer acting in his or her official capacity may be sued. Self-Governance Tribes and other Tribal officials are not proper defendants in lawsuits brought under section 509(a)(2) of the Act [25 U.S.C. 458aaa-8(a)(2)].