U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 10Chapter IPart 51Subpart A - Subpart A—National Environmental Policy Act—Regulations Implementing Section 102(2)

PRELIMINARY PROCEDURES
§ 51.10 - Purpose and scope of subpart; application of regulations of Council on Environmental Quality.
§ 51.11 - Relationship to other subparts. [Reserved]
§ 51.12 - Application of subpart to ongoing environmental work.
§ 51.13 - Emergencies.
§ 51.14 - Definitions.
§ 51.15 - Time schedules.
§ 51.16 - Proprietary information.
§ 51.17 - Information collection requirements; OMB approval.

CLASSIFICATION OF LICENSING AND REGULATORY ACTIONS
§ 51.20 - Criteria for and identification of licensing and regulatory actions requiring environmental impact statements.
§ 51.21 - Criteria for and identification of licensing and regulatory actions requiring environmental assessments.
§ 51.22 - Criterion for categorical exclusion; identification of licensing and regulatory actions eligible for categorical exclusion or otherwise not requiring environmental review.
§ 51.23 - Environmental impacts of continued storage of spent nuclear fuel beyond the licensed life for operation of a reactor.

DETERMINATIONS TO PREPARE ENVIRONMENTAL IMPACT STATEMENTS, ENVIRONMENTAL ASSESSMENTS OR FINDINGS OF NO SIGNIFICANT IMPACT, AND RELATED PROCEDURES
§ 51.25 - Determination to prepare environmental impact statement or environmental assessment; eligibility for categorical exclusion.
§ 51.26 - Requirement to publish notice of intent and conduct scoping process.
§ 51.27 - Notice of intent.

SCOPING
§ 51.28 - Scoping—participants.
§ 51.29 - Scoping-environmental impact statement and supplement to environmental impact statement.

ENVIRONMENTAL ASSESSMENT
§ 51.30 - Environmental assessment.
§ 51.31 - Determinations based on environmental assessment.

FINDING OF NO SIGNIFICANT IMPACT
§ 51.32 - Finding of no significant impact.
§ 51.33 - Draft finding of no significant impact; distribution.
§ 51.34 - Preparation of finding of no significant impact.
§ 51.35 - Requirement to publish finding of no significant impact; limitation on Commission action.

ENVIRONMENTAL REPORTS AND INFORMATION—REQUIREMENTS APPLICABLE TO APPLICANTS AND PETITIONERS FOR RULEMAKING
GENERAL
§ 51.40 - Consultation with NRC staff.
§ 51.41 - Requirement to submit environmental information.

ENVIRONMENTAL REPORTS—GENERAL REQUIREMENTS
§ 51.45 - Environmental report.

ENVIRONMENTAL REPORTS—PRODUCTION AND UTILIZATION FACILITIES
§ 51.49 - Environmental report—limited work authorization.
§ 51.50 - Environmental report—construction permit, early site permit, or combined license stage.
§ 51.51 - Uranium fuel cycle environmental data—Table S-3.
§ 51.52 - Environmental effects of transportation of fuel and waste—Table S-4.
§ 51.53 - Postconstruction environmental reports.
§ 51.54 - Environmental report—manufacturing license.
§ 51.55 - Environmental report—standard design certification.
§ 51.56 - Environmental report—non-power production or utilization facility.
§ 51.58 - Environmental report—number of copies; distribution.

ENVIRONMENTAL REPORTS—MATERIALS LICENSES
§ 51.60 - Environmental report—materials licenses.
§ 51.61 - Environmental report—independent spent fuel storage installation (ISFSI) or monitored retrievable storage installation (MRS) license.
§ 51.62 - Environmental report—land disposal of radioactive waste licensed under 10 CFR part 61.
§ 51.66 - Environmental report—number of copies; distribution.
§ 51.67 - Environmental information concerning geologic repositories.

ENVIRONMENTAL REPORTS—RULEMAKING
§ 51.68 - Environmental report—rulemaking.

ENVIRONMENTAL IMPACT STATEMENTS
DRAFT ENVIRONMENTAL IMPACT STATEMENTS—GENERAL REQUIREMENTS
§ 51.70 - Draft environmental impact statement—general.
§ 51.71 - Draft environmental impact statement—contents.
§ 51.72 - Supplement to draft environmental impact statement.
§ 51.73 - Request for comments on draft environmental impact statement.
§ 51.74 - Distribution of draft environmental impact statement and supplement to draft environmental impact statement; news releases.

DRAFT ENVIRONMENTAL IMPACT STATEMENTS—PRODUCTION AND UTILIZATION FACILITIES
§ 51.75 - Draft environmental impact statement—construction permit, early site permit, or combined license.
§ 51.76 - Draft environmental impact statement—limited work authorization.
§ 51.77 - Distribution of draft environmental impact statement.

DRAFT ENVIRONMENTAL IMPACT STATEMENTS—MATERIALS LICENSES
§ 51.80 - Draft environmental impact statement—materials license.
§ 51.81 - Distribution of draft environmental impact statement.

DRAFT ENVIRONMENTAL IMPACT STATEMENTS—RULEMAKING
§ 51.85 - Draft environmental impact statement—rulemaking.
§ 51.86 - Distribution of draft environmental impact statement.

LEGISLATIVE ENVIRONMENTAL IMPACT STATEMENTS—PROPOSALS FOR LEGISLATION
§ 51.88 - Proposals for legislation.

FINAL ENVIRONMENTAL IMPACT STATEMENTS—GENERAL REQUIREMENTS
§ 51.90 - Final environmental impact statement—general.
§ 51.91 - Final environmental impact statement—contents.
§ 51.92 - Supplement to the final environmental impact statement.
§ 51.93 - Distribution of final environmental impact statement and supplement to final environmental impact statement; news releases.
§ 51.94 - Requirement to consider final environmental impact statement.

FINAL ENVIRONMENTAL IMPACT STATEMENTS—PRODUCTION AND UTILIZATION FACILITIES
§ 51.95 - Postconstruction environmental impact statements.

FINAL ENVIRONMENTAL IMPACT STATEMENTS—MATERIALS LICENSES
§ 51.97 - Final environmental impact statement—materials license.

FINAL ENVIRONMENTAL IMPACT STATEMENTS—RULEMAKING
§ 51.99 - [Reserved]

NEPA PROCEDURE AND ADMINISTRATIVE ACTION
GENERAL
§ 51.100 - Timing of Commission action.
§ 51.101 - Limitations on actions.
§ 51.102 - Requirement to provide a record of decision; preparation.
§ 51.103 - Record of decision—general.
§ 51.104 - NRC proceeding using public hearings; consideration of environmental impact statement.

PRODUCTION AND UTILIZATION FACILITIES
§ 51.105 - Public hearings in proceedings for issuance of construction permits or early site permits; limited work authorizations.
§ 51.105a - Public hearings in proceedings for issuance of manufacturing licenses.
§ 51.106 - Public hearings in proceedings for issuance of operating licenses.
§ 51.107 - Public hearings in proceedings for issuance of combined licenses; limited work authorizations.
§ 51.108 - Public hearings on Commission findings that inspections, tests, analyses, and acceptance criteria of combined licenses are met.

MATERIALS LICENSES
§ 51.109 - Public hearings in proceedings for issuance of materials license with respect to a geologic repository.

RULEMAKING
§ 51.110 - [Reserved]

PUBLIC NOTICE OF AND ACCESS TO ENVIRONMENTAL DOCUMENTS
§ 51.116 - Notice of intent.
§ 51.117 - Draft environmental impact statement—notice of availability.
§ 51.118 - Final environmental impact statement—notice of availability.
§ 51.119 - Publication of finding of no significant impact; distribution.
§ 51.120 - Availability of environmental documents for public inspection.
§ 51.121 - Status of NEPA actions.
§ 51.122 - List of interested organizations and groups.
§ 51.123 - Charges for environmental documents; distribution to public; distribution to governmental agencies.

COMMENTING
§ 51.124 - Commission duty to comment.

RESPONSIBLE OFFICIAL
§ 51.125 - Responsible official.
Appendix Appendix A - Appendix A to Subpart A of Part 51—Format for Presentation of Material in Environmental Impact Statements
Appendix Appendix B - Appendix B to Subpart A of 10 CFR Part 51—Environmental Effect of Renewing the Operating License of a Nuclear Power Plant
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