Ashton-Sandy Spring Noise Ordinances: Outdoor Music Rules (2026)

Organized outdoor music events in Montgomery County require a special events permit from the Department of Permitting Services (DPS), which includes noise conditions such as maximum decibel levels, sound check requirements, speaker placement facing away from residences, and mandatory end times. Casual outdoor music at private residences is permitted but must comply with Chapter 31B noise standards at the property line. After 9 PM, enforcement becomes stricter and police will respond to complaints about music audible beyond the source property. Outdoor dining venues and commercial establishments with live or recorded outdoor music must include noise mitigation in their conditional use or site plan approvals under Chapter 59 zoning code. Popular outdoor event venues including Bethesda, Rockville Town Center (incorporated), and downtown Silver Spring regularly host permitted outdoor concerts with pre-approved sound plans. Parks and recreation facilities may host outdoor music under county-managed permits with specific end times, typically 10 PM.