Section 21-1122 - Noise limitations on use of sound amplification systems(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.Amended by 2017 Md. Laws, Ch. 55,Sec. 1, eff. 10/1/2017.