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Current FIPs in Idaho

EPA is required to develop an air quality Federal Implementation Plan (FIP) if a state fails to submit an implementation plan, or if the plan does not fully comply with the NAAQS or NAAQS-related requirements, such as regional haze. EPA may also develop a FIP for tribal lands if a tribe elects not to develop their own implementation plan, as appropriate.  Learn more about FIPs.

Current FIPs in Idaho
Code of Federal Regulations (CFR) Section Heading CFR Citation Federal Register (FR) Citation
Control strategy: Sulfur oxides—Eastern Idaho Intrastate Air Quality Control Region. 40 CFR 52.675 41 FR 23200 (PDF)(4 pp, 522 K, About PDF)
Federal Implementation Plan for the Astaris-Idaho LLC Facility (formerly owned by FMC Corporation) in the Fort Hall PM-10 Nonattainment Area. 40 CFR 49.10711 65 FR 51412 (PDF)(41 pp, 470 K)