N.Y.C. Admin. Code § 24-228.1: § 24-228.1 Exhausts.

No person shall cause or permit discharge into the open air of the exhaust of any device, including but not limited to any steam engine, diesel engine, internal combustion engine, power tools, compressors or turbine engine, so as to create an unreasonable noise. For the purposes of this section unreasonable noise shall include but shall not be limited to sound that exceeds the prohibited noise levels set forth in section 24-228.