Quiet Hours: 10:00 PM to 7:00 AM (general noise for stationary sources). Construction activities near residential properties are restricted before 6:00 AM and after 11:00 PM (Mon-Fri) and before 6:00 AM and after 12:00 AM (Sat-Sun).
Residential Decibel Limit: Not specified (Day) / Not specified (Night)
Summary: St. Louis, MO noise ordinances, primarily Ordinance 68130, provide comprehensive noise control through the Health Commissioner. Key restrictions include quiet hours from 10 PM to 7 AM for stationary sources, and specific construction limitations. Vehicle noise and amplified sound are also regulated, with penalties ranging from fines up to $1,000 to vehicle impoundment for violations.