• Part 1 [§ 1.1 - § 1.61] - PART 1—STATEMENT OF ORGANIZATION AND GENERAL INFORMATION

• Part 2 [§ 2.100 - § 2.406] - PART 2—PUBLIC INFORMATION

• Part 3 [§ 3.1 - § 3.2000] - PART 3—CROSS-MEDIA ELECTRONIC REPORTING

• Part 4 [§ 4.1 - § 4.1] - PART 4—UNIFORM RELOCATION ASSISTANCE AND REAL PROPERTY ACQUISITION FOR FEDERAL AND FEDERALLY ASSISTED PROGRAMS

• Part 5 [§ 5.100 - § 5.605] - PART 5—NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE

• Part 6 [§ 6.100 - § 6.406] - PART 6—PROCEDURES FOR IMPLEMENTING THE NATIONAL ENVIRONMENTAL POLICY ACT AND ASSESSING THE ENVIRONMENTAL EFFECTS ABROAD OF EPA ACTIONS

• Part 7 [§ 7.10 - § 7.180] - PART 7—NONDISCRIMINATION IN PROGRAMS OR ACTIVITIES RECEIVING FEDERAL ASSISTANCE FROM THE ENVIRONMENTAL PROTECTION AGENCY

• Part 8 [§ 8.1 - § 8.12] - PART 8—ENVIRONMENTAL IMPACT ASSESSMENT OF NONGOVERNMENTAL ACTIVITIES IN ANTARCTICA

• Part 9 [§ 9.1 - § 9.1] - PART 9—OMB APPROVALS UNDER THE PAPERWORK REDUCTION ACT

• Part 10 [§ 10.1 - § 10.11] - PART 10—ADMINISTRATIVE CLAIMS UNDER FEDERAL TORT CLAIMS ACT

• Part 11 [§ 11.1 - § 11.6] - PART 11—SECURITY CLASSIFICATION REGULATIONS PURSUANT TO EXECUTIVE ORDER 11652

• Part 12 [§ 12.101 - § 12.999] - PART 12—NONDISCRIMINATION ON THE BASIS OF HANDICAP IN PROGRAMS OR ACTIVITIES CONDUCTED BY THE ENVIRONMENTAL PROTECTION AGENCY

• Part 13 [§ 13.1 - § 13.40] - PART 13—CLAIMS COLLECTION STANDARDS

• Part 14 [§ 14.1 - § 14.14] - PART 14—EMPLOYEE PERSONAL PROPERTY CLAIMS

• Part 16 [§ 16.1 - § 16.12] - PART 16—IMPLEMENTATION OF PRIVACY ACT OF 1974

• Part 17 [§ 17.1 - § 17.29] - PART 17—IMPLEMENTATION OF THE EQUAL ACCESS TO JUSTICE ACT IN EPA ADMINISTRATIVE PROCEEDINGS

• Part 18 [§ 18.1 - § 18.11] - PART 18—ENVIRONMENTAL PROTECTION RESEARCH FELLOWSHIPS AND SPECIAL RESEARCH CONSULTANTS FOR ENVIRONMENTAL PROTECTION

• Part 19 [§ 19.1 - § 19.4] - PART 19—ADJUSTMENT OF CIVIL MONETARY PENALTIES FOR INFLATION

• Part 20 [§ 20.1 - § 20.10] - PART 20—CERTIFICATION OF FACILITIES

• Part 21 [§ 21.1 - § 21.13] - PART 21—SMALL BUSINESS

• Part 22 [§ 22.1 - § 22.52] - PART 22—CONSOLIDATED RULES OF PRACTICE GOVERNING THE ADMINISTRATIVE ASSESSMENT OF CIVIL PENALTIES AND THE REVOCATION/TERMINATION OR SUSPENSION OF PERMITS

• Part 23 [§ 23.1 - § 23.12] - PART 23—JUDICIAL REVIEW UNDER EPA-ADMINISTERED STATUTES

• Part 24 [§ 24.01 - § 24.20] - PART 24—RULES GOVERNING ISSUANCE OF AND ADMINISTRATIVE HEARINGS ON INTERIM STATUS CORRECTIVE ACTION ORDERS

• Part 25 [§ 25.1 - § 25.14] - PART 25—PUBLIC PARTICIPATION IN PROGRAMS UNDER THE RESOURCE CONSERVATION AND RECOVERY ACT, THE SAFE DRINKING WATER ACT, AND THE CLEAN WATER ACT

• Part 26 [§ 26.101 - § 26.1706] - PART 26—PROTECTION OF HUMAN SUBJECTS

• Part 27 [§ 27.1 - § 27.48] - PART 27—PROGRAM FRAUD CIVIL REMEDIES

• Part 29 [§ 29.1 - § 29.13] - PART 29—INTERGOVERNMENTAL REVIEW OF ENVIRONMENTAL PROTECTION AGENCY PROGRAMS AND ACTIVITIES

• Part 30-31 - PARTS 30-31 [RESERVED]

• Part 33 [§ 33.101 - § 33.503] - PART 33—PARTICIPATION BY DISADVANTAGED BUSINESS ENTERPRISES IN UNITED STATES ENVIRONMENTAL PROTECTION AGENCY PROGRAMS

• Part 34 [§ 34.100 - § 34.605] - PART 34—NEW RESTRICTIONS ON LOBBYING

• Part 35 [§ 35.001 - § 35.10080] - PART 35—STATE AND LOCAL ASSISTANCE

• Part 40 [§ 40.100 - § 40.165] - PART 40—RESEARCH AND DEMONSTRATION GRANTS

• Part 45 [§ 45.100 - § 45.155] - PART 45—TRAINING ASSISTANCE

• Part 46 [§ 46.100 - § 46.230] - PART 46—FELLOWSHIPS

• Part 47 [§ 47.100 - § 47.135] - PART 47—NATIONAL ENVIRONMENTAL EDUCATION ACT GRANTS

• Part 49 [§ 49.1 - § 49.17810] - PART 49—INDIAN COUNTRY: AIR QUALITY PLANNING AND MANAGEMENT