Part 49 - INDIAN COUNTRY: AIR QUALITY PLANNING AND MANAGEMENT
- Subpart A - TRIBAL AUTHORITY (§§ 49.1 — 49.12-49.50)
- Subpart B - GENERAL PROVISIONS (§ 49.51-49.100)
- Subpart C - GENERAL FEDERAL IMPLEMENTATION PLAN PROVISIONS (§§ 49.140-49.150 — 49.165)
- Subpart D - IMPLEMENTATION PLANS FOR TRIBES-REGION I (§§ 49.202 — 49.201)
- Subpart E - IMPLEMENTATION PLANS FOR TRIBES-REGION II (§§ 49.471 — 49.472-49.680)
- Subpart F - IMPLEMENTATION PLANS FOR TRIBES-REGION III (§ 49.681-49.710)
- Subpart G - IMPLEMENTATION PLANS FOR TRIBES-REGION IV (§ 49.711-49.920)
- Subpart H - IMPLEMENTATION PLANS FOR TRIBES-REGION V (§ 49.921-49.1970)
- Subpart I - IMPLEMENTATION PLANS FOR TRIBES-REGION VI (§ 49.1971-49.3920)
- Subpart J - IMPLEMENTATION PLANS FOR TRIBES-REGION VII (§ 49.3921-49.4160)
- Subpart K - IMPLEMENTATION PLANS FOR TRIBES-REGION VIII (§§ 49.4169 — 49.4201-49.5510)
- Subpart L - IMPLEMENTATION PLANS FOR TRIBES-REGION IX (§§ 49.5511 — 49.5516-49.9860)
- Subpart M - IMPLEMENTATION PLANS FOR TRIBES-REGION X (§§ 49.9861 — 49.9931-49.9950)