Ontario, Canada: Noise Guidelines for Wind Farms [2008] [link].
Denmark: Statutory Order on Noise from Wind Turbines [2011] [link].
Massachusetts, United States: Noise Control Regulation 310 CMR 7.10 [1990] [link] [link].
United Kingdom: ETSU-R-97 The Assessment and Rating of Noise from Wind Farms [1996] and its application guide A good practice guide to the application of ETSU-R-97 for the assessment and rating of wind turbine noise [2013]. [critique] [critique]
South Australia, Australia: Wind Farms Environmental Noise Guidelines [2009] [link].