Michigan Government Watch

Mentioned 1× · first seen 09-jul-2026 · last seen 09-jul-2026

Air Emission Profile Data Calculation (HB5557)

Current understanding

HB5557 (103rd Michigan Legislature) proposes to amend sec. 5503 of the Natural Resources and Environmental Protection Act (1994 PA 451, MCL 324.5503) to modify how emission profile data is calculated under Michigan’s air pollution control provisions (Part 55). The change is a targeted methodological adjustment rather than a new regulatory mechanism, and would affect how EGLE characterizes emissions for regulated sources. The bill has passed one chamber.

Evidence log

Open questions

Contributing findings

Legislative passed chamber

Environmental protection: air pollution; calculation of emission profile data; modify. Amends sec. 5503 of 1994 PA 451 (MCL 324.5503).

04-jun-2026 novelty 2 per-area 2 introduces

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