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Title 40

Displaying title 40, up to date as of 7/16/2026. Title 40 was last amended 7/16/2026.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter BGrants and Other Federal Assistance33 – 49
Part 49Indian Country: Air Quality Planning and Management49.1 – 49.17810
Subpart MImplementation Plans for Tribes—Region X49.9861 – 49.17810
Implementation Plan for the Burns Paiute Tribe of the Burns Paiute Indian Colony of Oregon49.9861 – 49.9890
Implementation Plan for the Confederated Tribes of the Chehalis Reservation, Washington49.9891 – 49.9920
Implementation Plan for the Coeur D'Alene Tribe of the Coeur D'Alene Reservation, Idaho49.9921 – 49.9950
Implementation Plan for the Confederated Tribes of the Colville Reservation, Washington49.9951 – 49.9980
Implementation Plan for the Confederated Tribes of the Coos, Lower Umpqua and Siuslaw Indians of Oregon49.9981 – 49.10010
Implementation Plan for the Coquille Tribe of Oregon49.10011 – 49.10040
Implementation Plan for the Cow Creek Band of Umpqua Indians of Oregon49.10041 – 49.10100
Implementation Plan for the Confederated Tribes of the Grand Ronde Community of Oregon49.10101 – 49.10130
Implementation Plan for the Hoh Indian Tribe of the Hoh Indian Reservation, Washington49.10131 – 49.10160
Implementation Plan for the Jamestown S'Klallam Tribe of Washington49.10161 – 49.10190
Implementation Plan for the Kalispel Indian Community of the Kalispel Reservation, Washington49.10191 – 49.10220
Implementation Plan for the Klamath Indian Tribe of Oregon49.10221 – 49.10250
Implementation Plan for the Kootenai Tribe of Idaho49.10251 – 49.10280
Implementation Plan for the Lower Elwha Tribal Community of the Lower Elwha Reservation, Washington49.10281 – 49.10310
Implementation Plan for the Lummi Tribe of the Lummi Reservation, Washington49.10311 – 49.10340
Implementation Plan for the Makah Indian Tribe of the Makah Indian Reservation, Washington49.10341 – 49.10370
Implementation Plan for the Muckleshoot Indian Tribe of the Muckleshoot Reservation, Washington49.10371 – 49.10400
Implementation Plan for the Nez Perce Tribe of Idaho49.10401 – 49.10430
Implementation Plan for the Nisqually Indian Tribe of the Nisqually Reservation, Washington49.10431 – 49.10460
Implementation Plan for the Nooksack Indian Tribe of Washington49.10461 – 49.10490
Implementation Plan for the Port Gamble Indian Community of the Port Gamble Reservation, Washington49.10491 – 49.10520
Implementation Plan for the Puyallup Tribe of the Puyallup Reservation, Washington49.10521 – 49.10550
Implementation Plan for the Quileute Tribe of the Quileute Reservation, Washington49.10551 – 49.10580
Implementation Plan for the Quinault Tribe of the Quinault Reservation, Washington49.10581 – 49.10640
Implementation Plan for the Sauk-Suiattle Indian Tribe of Washington49.10641 – 49.10670
Implementation Plan for the Shoalwater Bay Tribe of the Shoalwater Bay Indian Reservation, Washington49.10671 – 49.10700
Implementation Plan for the Shoshone-Bannock Tribes of the Fort Hall Indian Reservation of Idaho49.10701 – 49.10730
Implementation Plan for the Confederated Tribes of the Siletz Reservation, Oregon49.10731 – 49.10760
Implementation Plan for the Skokomish Indian Tribe of the Skokomish Reservation, Washington49.10761 – 49.10820
Implementation Plan for the Spokane Tribe of the Spokane Reservation, Washington49.10821 – 49.10850
Implementation Plan for the Squaxin Island Tribe of the Squaxin Island Reservation, Washington49.10851 – 49.10880
Implementation Plan for the Stillaguamish Tribe of Washington49.10881 – 49.10920
Implementation Plan for the Suquamish Indian Tribe of the Port Madison Reservation, Washington49.10921 – 49.10950
Implementation Plan for the Swinomish Indians of the Swinomish Reservation, Washington49.10951 – 49.10980
Implementation Plan for the Tulalip Tribes of the Tulalip Reservation, Washington49.10981 – 49.11010
Implementation Plan for the Confederated Tribes of the Umatilla Reservation, Oregon49.11011 – 49.11040
Implementation Plan for the Upper Skagit Indian Tribe of Washington49.11041 – 49.11070
Implementation Plan for the Confederated Tribes of the Warm Springs Reservation of Oregon49.11071 – 49.11100
Implementation Plan for the Confederated Tribes and Bands of the Yakama Nation, Washington49.11101 – 49.17810