(a) In this section, 'sound amplification system' means a compact disc player, a radio, a tape player, or a similar device. (b) This section does not apply to: (1) Authorized emergency vehicles; (2) Vehicles operated by communications, electric, gas, or water utilities; (3) A sound amplification system operated to request assistance or to warn of a hazardous situation; or (4) Unless otherwise prohibited by local law, a sound amplification system used for advertising, parades, or for political or other special events. (c) When a motor vehicle is being operated on a highway, the driver of the vehicle may not operate or permit the operation of a sound amplification system from the vehicle that can be heard outside the vehicle from 50 or more feet. (d) A violation of this section is not considered a moving violation for purposes of § 16–402 of this article.
Maryland Legal Code