Committee hears federal motorcycle noise and labeling standards; enforcement varies by state

During the same House Transportation session, DMV staff briefed members on federal motorcycle noise-emissions and labeling requirements and how states enforce them.

The agency official said federal rules require that motorcycles manufactured in 1986 or later meet noise limits at the time of initial sale — 80 decibels for street motorcycles and 82 decibels for dirt bikes — and that manufacturers must affix labels certifying compliance under a federal test procedure. "The motorcycles are required to have a label that has this wording ... meets EPA noise emissions requirements," the official said.

Committee members pressed staff on how states measure compliance and whether law enforcement has roadside tools to check noise. The presenter said federal labeling governs manufacture and sale but that enforcement varies: "Many states don't worry about the labeling. They worry about a roadside test. And then other states have labeling requirements." Members asked staff to provide the exact federal test procedure and to clarify how Vermont inspectors would verify exhaust and noise compliance given widespread availability of uncertified aftermarket parts.

No votes or formal decisions were taken; staff committed to sending the committee the federal testing procedure and further detail on inspection practices.