Part 49 — Indian Country: Air Quality Planning and Management

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• Subpt. A Tribal Authority §§49.1 to 49.12-49.50
• Subpt. B General Provisions §49.51-49.100
• Subpt. C General Federal Implementation Plan Provisions §§49.101 to 49.173
• Subpt. D Implementation Plans for Tribes—Region I §§49.201 to 49.203-49.470
• Subpt. E Implementation Plans for Tribes—Region II §§49.471 to 49.472-49.680
• Subpt. F Implementation Plans for Tribes—Region III §49.681-49.710
• Subpt. G Implementation Plans for Tribes—Region IV §49.711-49.920
• Subpt. H Implementation Plans for Tribes—Region V §49.921-49.1970
• Subpt. I Implementation Plans for Tribes—Region VI §49.1971-49.3920
• Subpt. J Implementation Plans for Tribes—Region VII §49.3921-49.4160
• Subpt. K Implementation Plans for Tribes—Region VIII §§49.4161 to 49.4201-49.5510
• Subpt. L Implementation Plans for Tribes—Region IX §§49.5511 to 49.5516-49.9860
• Subpt. M Implementation Plans for Tribes—Region X §§49.9861 to 49.11111-49.17810