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Title 40

Displaying title 40, up to date as of 10/07/2026. Title 40 was last amended 10/02/2026.
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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 Port Gamble Indian Community of the Port Gamble Reservation, Washington49.10491 – 49.10520
§ 49.10491Identification of plan.
§ 49.10492Approval status.
§ 49.10493 Legal authority. [Reserved]
§ 49.10494 Source surveillance. [Reserved]
§ 49.10495Classification of regions for episode plans.
§ 49.10496Contents of implementation plan.
§ 49.10497 EPA-approved Tribal rules and plans. [Reserved]
§ 49.10498Permits to construct.
§ 49.10499Permits to operate.
§ 49.10500Federally-promulgated regulations and Federal implementation plans.
§§ 49.10501-49.10520 [Reserved]