Quiet Hours: 10 PM-6 AM (Implied from noise permit restrictions for amplified sound in residential areas)
Residential Decibel Limit: 80 dB (Day) / 80 dB (Night)
Summary: Cheyenne, WY noise ordinances prohibit excessive vehicle noise, requiring mufflers and banning cut-outs or bypasses. A general maximum noise level of 80 decibels is enforced for various sources, including loud music and generators. Permits are required for temporary amplified sound in residential areas, generally between 6 AM and 10 PM. Animal nuisances, such as excessive barking, are also regulated.