Vehicles: automobiles; noise limitations; modify. Amends secs. 707d, 732 & 907 of 1949 PA 300 (MCL 257.707d et seq.) TIE BAR WITH: HB 6152’26
Key claim: Michigan HB6151 amends the Michigan Vehicle Code to modify noise limitations for automobiles, tied to companion bill HB6152.
Abstract
(HB6151 · 103rd Legislature) Vehicles: automobiles; noise limitations; modify. Amends secs. 707d, 732 & 907 of 1949 PA 300 (MCL 257.707d et seq.) TIE BAR WITH: HB 6152’26 Latest action (2026-07-01): Bill Electronically Reproduced 06/30/2026
[This finding represents 2 closely related documents issued 2026-06-30 (same source, same action). Related: legiscan:2155143:introduced]
Why this matters
Vehicle noise limits affect enforcement against modified exhausts and aftermarket suppliers, and can shape compliance requirements for automakers selling in Michigan. Because HB6151 is tie-barred to HB6152, neither takes effect without the other, so tracking both is necessary to understand the practical impact on drivers and the auto aftermarket.