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Title 40

Displaying title 40, up to date as of 8/13/2026. Title 40 was last amended 8/13/2026.
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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 Upper Skagit Indian Tribe of Washington49.11041 – 49.11070
§ 49.11041Identification of plan.
§ 49.11042Approval status.
§ 49.11043 Legal authority. [Reserved]
§ 49.11044 Source surveillance. [Reserved]
§ 49.11045Classification of regions for episode plans.
§ 49.11046Contents of implementation plan.
§ 49.11047 EPA-approved Tribal rules and plans. [Reserved]
§ 49.11048Permits to construct.
§ 49.11049Permits to operate.
§ 49.11050Federally-promulgated regulations and Federal implementation plans.
§§ 49.11051-49.11070 [Reserved]