Energy & environment · 11/10/1994Updated: 10/18/2026 · 1 min read
EPA Approves Michigan's Revised Vehicle Inspection and Maintenance Program to Meet National Air Quality Standards
The Environmental Protection Agency (EPA) has approved a revision to Michigan's State Implementation Plan (SIP) for ozone attainment, which requires the implementation of a vehicle inspection and maintenance (I/M) program in the Grand Rapids and Muskegon ozone nonattainment areas, as mandated by the Clean Air Act.