50 C.F.R. § 27.72 Audio equipment.
Title 50 - Wildlife and Fisheries
The operation or use of audio devices including radios, recording and playback devices, loudspeakers, television sets, public address systems and musical instruments so as to cause unreasonable disturbance to others in the vicinity is prohibited.
Title 50: Wildlife and Fisheries
PART 27—PROHIBITED ACTS
Subpart G—Disturbing Violations: Light and Sound Equipment
§ 27.72 Audio equipment.