Air Plan Approval; Michigan; Revisions to Volatile Organic Compound Rules

The Environmental Protection Agency (EPA) is approving revised rules submitted by the State of Michigan as State Implementation Plan (SIP) revisions. The main revision specifies volatile organic compound (VOC) limits for cutback and emulsified asphalts as well as the test methods for determining the VOC content of these products. Michigan also moved the adoption by reference citations from Part 6. Emission Limitations and Prohibitions--Existing Sources of Volatile Organic Emissions to Part 9. Emission Limitations and Prohibitions-- Miscellaneous and updated references to federal test methods in several of its Part 6 rules.