In the event there are no governing regulations for environmental noise levels in the jurisdiction you are researching, the criteria of the International Finance Corporation (“IFC” – part of the World Bank Group), can be adopted. The IFC noise guidelines are widely accepted and used for developing offsite sound level limits in jurisdictions without regulatory environmental noise criteria, or for proposed projects seeking financing from the World Bank Group or other large-scale financing organizations. Alternatively, you can reference ASHRAE Noise and Vibration Control Guidelines.
US Federal Noise Ordinances and Regulations
State Noise Ordinances and Regulations