Determination of Attainment by the Attainment Date for the 2008 Ozone National Ambient Air Quality Standards; Phoenix-Mesa, Arizona
air-emissions · Rule · Published 2019-11-12 · Effective 2019-12-12 · AZ · 84 FR 60920
Document
Document number
2019-23829
Federal Register citation
84 FR 60920
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2019-11-12
Effective date
2019-12-12
State
AZ
EPA docket
EPA-R9-OAR-2018-0821
Abstract
The Environmental Protection Agency (EPA) is taking final action to determine that the Phoenix-Mesa ozone nonattainment area ("Phoenix NAA"), which is classified as "Moderate" for the 2008 ozone National Ambient Air Quality Standards (NAAQS or "standards"), attained the NAAQS by the Moderate area attainment date of July 20, 2018. This determination is based on complete, quality-assured, and certified data for 2015-2017. This final action is necessary to fulfill the EPA's statutory obligation to determine whether ozone nonattainment areas attained the NAAQS by the applicable attainment date.