Determination That Pre-existing National Ambient Air Quality Standards for PM-10 No Longer Apply to Ada County/Boise; State of Idaho
air-emissions · Rule · Published 1999-03-12 · Effective 1999-03-12 · ID · 64 FR 12257
Document
Document number
99-5380
Federal Register citation
64 FR 12257
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
1999-03-12
Effective date
1999-03-12
State
ID
EPA docket
ID23-7003
Abstract
The Environmental Protection Agency (EPA) has determined that the national ambient air quality standards (NAAQS) for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM-10) that existed before September 16, 1997, shall no longer apply to the Northern Ada County/Boise, Idaho area and EPA is revoking the nonattainment designation associated with those standards. The State of Idaho has satisfied the requirements of the Clean Air Act (CAA) as well as EPA's regulations and Guidance for Implementing the 1- Hour Ozone and Pre-existing PM-10 NAAQS dated December 29, 1997.