In the Municipal District of Lethbridge County, Alberta, noise & nuisance rules are set by Bylaw 1406 - Noise Bylaw, verified 2026-09-27. Quiet hours: Residential: 11:00pm-7:00am weekday; 11:00pm-9:00am Sunday/Holiday. Fines: $250.00-$500.00. Exemptions: Industrial lands, agricultural lands, County agents/employees.