Designation of Areas for Air Quality Planning Purposes; State of California; Imperial Valley Planning Area for PM10; Clarification of Nonattainment Area Boundary
air-emissions · Rule · Published 2013-03-19 · Effective 2013-05-20 · CA · 78 FR 16792
Document
Document number
2013-06208
Federal Register citation
78 FR 16792
CFR reference
40 CFR 81
Type
Rule
Action
Direct final rule.
Category
air-emissions
Publication date
2013-03-19
Effective date
2013-05-20
State
CA
EPA docket
EPA-R09-OAR-2013-0135
Abstract
EPA is clarifying the description of the Imperial Valley planning area, an area designated as nonattainment for the national ambient air quality standard for particulate matter with an aerodynamic diameter of a nominal 10 microns or less (PM<INF>10</INF>). EPA is not changing the boundaries of the PM<INF>10</INF> area or the status of the area as a "serious" PM<INF>10</INF> nonattainment area but is clarifying the description of this partial county area in the Code of Federal Regulations.