Approval and Promulgation of Air Quality Implementation Plans; Wisconsin; Particulate Matter Standards
air-emissions · Rule · Published 2010-04-08 · Effective 2010-06-07 · WI · 75 FR 17865
Document
Document number
2010-7968
Federal Register citation
75 FR 17865
CFR reference
40 CFR 52
Type
Rule
Action
Direct final rule.
Category
air-emissions
Publication date
2010-04-08
Effective date
2010-06-07
State
WI
EPA docket
EPA-R05-OAR-2009-0731
Abstract
Wisconsin updated its state ambient air quality standards rules to match the current Federal standards. The updates were made to the particulate matter standards by adding fine particulate standards and revoking the state's course particulate standards. EPA revised its particulate matter standards in October 2006 by strengthening the 24- hour fine particulate standard and revoking the annual standard for course particulate. EPA is approving the revisions to the Wisconsin State Implementation Plan (SIP) as requested by the state on September 11, 2009.