St. Joseph County, IN Noise Ordinances: Vehicle Noise (2026)

(1)The sounding of any horn or signaling device on any automobile, motorcycle or other vehicle on any street or public place except as a danger warning; ... the use of any signaling device except one operated by hand or electricity; the use of any horn, whistle or other device operated by engine exhaust; and the use of any such signaling device when traffic is for any reason held up; ... (6)The discharge into the open air of the exhaust of any steam engine, stationary internal combustion engine, motorboat or motor vehicle except through a muffler or other device which will effectively prevent loud or explosive noises therefrom; ... (7)The use of any automobile, motorcycle, dirt bike or any other vehicle so out of repair, so loaded or in such a manner as to create loud and unnecessary engine noise, grating, grinding, rattling or other noise in excess of the noise limit measured in decibels as prescribed by state standards. The noise limit applies to total noise from a motor vehicle or motorcycle including that noise of other vehicles attached thereto;