• Part 190 [§ 190.01 - § 190.12] - PART 190—ENVIRONMENTAL RADIATION PROTECTION STANDARDS FOR NUCLEAR POWER OPERATIONS

• Part 191 [§ 191.01 - § 191.27] - PART 191—ENVIRONMENTAL RADIATION PROTECTION STANDARDS FOR MANAGEMENT AND DISPOSAL OF SPENT NUCLEAR FUEL, HIGH-LEVEL AND TRANSURANIC RADIOACTIVE WASTES

• Part 192 [§ 192.00 - § 192.43] - PART 192—HEALTH AND ENVIRONMENTAL PROTECTION STANDARDS FOR URANIUM AND THORIUM MILL TAILINGS

• Part 194 [§ 194.1 - § 194.67] - PART 194—CRITERIA FOR THE CERTIFICATION AND RE-CERTIFICATION OF THE WASTE ISOLATION PILOT PLANT'S COMPLIANCE WITH THE 40 CFR PART 191 DISPOSAL REGULATIONS

• Part 195 [§ 195.1 - § 195.30] - PART 195—RADON PROFICIENCY PROGRAMS

• Part 197 [§ 197.1 - § 197.38] - PART 197—PUBLIC HEALTH AND ENVIRONMENTAL RADIATION PROTECTION STANDARDS FOR YUCCA MOUNTAIN, NEVADA

• Part 201 [§ 201.1 - § 201.28] - PART 201—NOISE EMISSION STANDARDS FOR TRANSPORTATION EQUIPMENT; INTERSTATE RAIL CARRIERS

• Part 202 [§ 202.10 - § 202.23] - PART 202—MOTOR CARRIERS ENGAGED IN INTERSTATE COMMERCE

• Part 203 [§ 203.1 - § 203.8] - PART 203—LOW-NOISE-EMISSION PRODUCTS

• Part 204 [§ 204.1 - § 204.59] - PART 204—NOISE EMISSION STANDARDS FOR CONSTRUCTION EQUIPMENT

• Part 205 [§ 205.1 - § 205.174] - PART 205—TRANSPORTATION EQUIPMENT NOISE EMISSION CONTROLS

• Part 209 [§ 209.1 - § 209.36] - PART 209—RULES OF PRACTICE GOVERNING PROCEEDINGS UNDER THE NOISE CONTROL ACT OF 1972

• Part 210 [§ 210.1 - § 210.3] - PART 210—PRIOR NOTICE OF CITIZEN SUITS

• Part 211 [§ 211.101 - § 211.214] - PART 211—PRODUCT NOISE LABELING

• Part 220 [§ 220.1 - § 220.4] - PART 220—GENERAL

• Part 221 [§ 221.1 - § 221.5] - PART 221—APPLICATIONS FOR OCEAN DUMPING PERMITS UNDER SECTION 102 OF THE ACT

• Part 222 [§ 222.1 - § 222.13] - PART 222—ACTION ON OCEAN DUMPING PERMIT APPLICATIONS UNDER SECTION 102 OF THE ACT

• Part 223 [§ 223.1 - § 223.5] - PART 223—CONTENTS OF PERMITS; REVISION, REVOCATION OR LIMITATION OF OCEAN DUMPING PERMITS UNDER SECTION 104(d) OF THE ACT

• Part 224 [§ 224.1 - § 224.2] - PART 224—RECORDS AND REPORTS REQUIRED OF OCEAN DUMPING PERMITTEES UNDER SECTION 102 OF THE ACT

• Part 225 [§ 225.1 - § 225.4] - PART 225—CORPS OF ENGINEERS DREDGED MATERIAL PERMITS

• Part 227 [§ 227.1 - § 227.32] - PART 227—CRITERIA FOR THE EVALUATION OF PERMIT APPLICATIONS FOR OCEAN DUMPING OF MATERIALS

• Part 228 [§ 228.1 - § 228.15] - PART 228—CRITERIA FOR THE MANAGEMENT OF DISPOSAL SITES FOR OCEAN DUMPING

• Part 229 [§ 229.1 - § 229.3] - PART 229—GENERAL PERMITS

• Part 230 [§ 230.1 - § 230.98] - PART 230—SECTION 404(b)(1) GUIDELINES FOR SPECIFICATION OF DISPOSAL SITES FOR DREDGED OR FILL MATERIAL

• Part 231 [§ 231.1 - § 231.8] - PART 231—SECTION 404(c) PROCEDURES

• Part 232 [§ 232.1 - § 232.3] - PART 232—404 PROGRAM DEFINITIONS; EXEMPT ACTIVITIES NOT REQUIRING 404 PERMITS

• Part 233 [§ 233.1 - § 233.71] - PART 233—404 STATE PROGRAM REGULATIONS

• Part 238 [§ 238.10 - § 238.30] -

• Part 239 [§ 239.1 - § 239.13] - PART 239—REQUIREMENTS FOR STATE PERMIT PROGRAM DETERMINATION OF ADEQUACY

• Part 240 [§ 240.100 - § 240.211–3] - PART 240—GUIDELINES FOR THE THERMAL PROCESSING OF SOLID WASTES

• Part 241 [§ 241.1 - § 241.4] - PART 241—SOLID WASTES USED AS FUELS OR INGREDIENTS IN COMBUSTION UNITS

• Part 243 [§ 243.100 - § 243.204–2] - PART 243—GUIDELINES FOR THE STORAGE AND COLLECTION OF RESIDENTIAL, COMMERCIAL, AND INSTITUTIONAL SOLID WASTE

• Part 246 [§ 246.100 - § 246.203] - PART 246—SOURCE SEPARATION FOR MATERIALS RECOVERY GUIDELINES

• Part 247 [§ 247.1 - § 247.17] - PART 247—COMPREHENSIVE PROCUREMENT GUIDELINE FOR PRODUCTS CONTAINING RECOVERED MATERIALS

• Part 254 [§ 254.1 - § 254.3] - PART 254—PRIOR NOTICE OF CITIZEN SUITS

• Part 255 [§ 255.1 - § 255.41] - PART 255—IDENTIFICATION OF REGIONS AND AGENCIES FOR SOLID WASTE MANAGEMENT

• Part 256 [§ 256.01 - § 256.65] - PART 256—GUIDELINES FOR DEVELOPMENT AND IMPLEMENTATION OF STATE SOLID WASTE MANAGEMENT PLANS

• Part 257 [§ 257.1 - § 257.107] - PART 257—CRITERIA FOR CLASSIFICATION OF SOLID WASTE DISPOSAL FACILITIES AND PRACTICES

• Part 258 [§ 258.1 - § 258.75] - PART 258—CRITERIA FOR MUNICIPAL SOLID WASTE LANDFILLS

• Part 259 - PART 259 [RESERVED]