# Transportation (GTR)

## Title 21. Vehicle Laws -- Rules of the Road

### Subtitle 11. Miscellaneous Rules

#### Section 21-1122

(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 Sec. 16-402 of this article.

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Md. Code Ann., Transp. (as displayed at mgaleg.maryland.gov, October 16, 2026)