Clean Air Act Approval and Promulgation of PMINF10/INF Implementation Plan for Colorado; Designation of Areas for Air Quality Planning Purposes; Steamboat Springs
air-emissions · Rule · Published 1997-12-31 · Effective 1998-03-02 · CO · 62 FR 68188
Document
Document number
97-33958
Federal Register citation
62 FR 68188
CFR reference
40 CFR 52
Type
Rule
Action
Direct final rule.
Category
air-emissions
Publication date
1997-12-31
Effective date
1998-03-02
State
CO
EPA docket
CO-001-0006a & CO-001-0021a
Abstract
EPA approves the State implementation plan (SIP) submitted by the State of Colorado to achieve attainment and maintenance of the National Ambient Air Quality Standards (NAAQS) for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>), including among other things, control measures, technical analyses, quantitative milestones and contingency measures. The SIP was submitted by the Governor of Colorado with a letter dated September 16, 1997 to satisfy certain Federal requirements for an approvable SIP for the Steamboat Springs, Colorado moderate PM<INF>10</INF> nonattainment area, as designated effective January 20, 1994. In addition, EPA approves the Steamboat Springs emergency episode plan. EPA also amends the boundary for the Steamboat Springs nonattainment area to clarify the original description.