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Committee hears testimony opposing Senate-added motorcycle-exhaust stamp requirement
Summary
Witnesses and DMV staff told the House Transportation Committee that a Senate amendment requiring inspectors to locate federal exhaust markings (40 CFR) would be impractical, could miss loud motorcycles and may increase inspection time and costs; witnesses urged targeting removed baffles and random enforcement of inspection stations instead.
A Vermont House Transportation Committee hearing on April 16, 2026, turned to a Senate-added provision that would require motorcycle inspection mechanics to verify federal markings on exhaust systems as part of vehicle inspections.
John Lyon, who identified himself as owner of a Harley‑Davidson dealership and operator of an inspection station, testified that the federal labels cited in the bill (40 CFR markings) are often difficult to locate or degrade over time and that basing pass/fail decisions on those stamps would not reliably measure noise. “You can make a quiet bike fail this bill and a loud bike pass,” Lyon said, arguing that heat, corrosion and road grime often make markings illegible and that locating the marks could add significant time and cost to inspections.
The Deputy Commissioner for DMV and staff warned committee members that the Senate language represents “a change of practice” for inspectors and that not all OEM or aftermarket parts carry readily visible marks. DMV staff said the provision could create inconsistent enforcement because the federal labeling rules govern manufacturing and labeling practices, not the practical question of whether a motorcycle’s exhaust is excessively loud today.
Committee members pressed for alternatives and implementation details. Several lawmakers suggested a staged rollout with education for owners and inspectors, or a focus on enforcement tactics that target the root causes of excessive noise — notably removed or altered baffles, straight pipes and internal modifications. Lyon recommended using targeted enforcement such as bait-bike checks and random audits of inspection stations to identify shops that are improperly passing modified motorcycles.
Members also asked DMV to provide background data, including a list of stations certified to inspect motorcycles and statistics on inspection failures. Lyon estimated there are roughly 8,000 Harley‑Davidsons registered in the state and said his dealership would welcome stronger enforcement of existing rules rather than a marking‑search requirement.
The committee did not vote on the provision during the session; members asked for written testimony and additional information before deciding whether to retain, remove or rewrite the Senate language.
