Browzin - 4/20/2007 7:31 PM The Federal Gov't has set limits on noise levels (60 db @ 50' (NPS limit) ) which can be found here ( http://klenger.net/arctic-fox/generator-noise/36cfr2.12-audio-disturbances.htm ) For a simpler explanation than the gov. wording go to this site. http://klenger.net/arctic-fox/generator-noise/index.html and then you can click on 36cfr2.212 if you want to read the gov. wording.