in Vancover, WA, voted unanimously last week to ban unmuffled compression brakes
inside city limits. The ban fines truckers $250 for operating an engine brake
without a muffler.
new vehicles are required to comply with Environmental Protection Agency noise
regulations, city officials point out that older trucks and those modified by
their drivers might not meet the noise standard.
of violating the proposed ordinance would be allowed to defend themselves by
proving that the brakes were used during an emergency. The new ban exempts emergency