Approval and Promulgation of Air Quality Implementation Plans; State of Colorado Second Ten-Year PM10 Maintenance Plan for Aspen
air-emissions · Rule · Published 2013-09-19 · Effective 2013-11-18 · CO · 78 FR 57496
Document
Document number
2013-22733
Federal Register citation
78 FR 57496
CFR reference
40 CFR 52
Type
Rule
Action
Direct final rule.
Category
air-emissions
Publication date
2013-09-19
Effective date
2013-11-18
State
CO
EPA docket
EPA-R08-OAR-2012-0475
Abstract
EPA is taking final action approving State Implementation Plan (SIP) revisions submitted by the State of Colorado. On May 25, 2011, the Governor of Colorado's designee submitted to EPA a revised maintenance plan for the Aspen area for the National Ambient Air Quality Standards (NAAQS) for particulate matter with an aerodynamic diameter less than or equal to 10 microns (PM<INF>10</INF>), which was adopted by the State on December 16, 2010. As required by Clean Air Act (CAA) section 175A(b), this revised maintenance plan addresses maintenance of the PM<INF>10</INF> standard for a second 10-year period beyond the area's original redesignation to attainment for the PM<INF>10</INF> NAAQS. In addition, EPA is approving the revised maintenance plan's 2023 transportation conformity motor vehicle emissions budget for PM<INF>10.</INF> This action is being taken under sections 110 and 175A of the CAA.