Sound Emitted to Class B Land

Section 901 Section 901.103  Sound Emitted to Class B Land Except as provided elsewhere in this Part, a person must not cause or allow the emission of sound from any property-line noise source located on any Class A, B or C land to any receiving Class B land that exceeds any allowable octave band sound pressure level specified in the following table, when measured at any point within the receiving Class B land. Sound pressure levels must be measured at least 25 feet from the property-line noise source. Octave Band Center Frequency (Hertz) Allowable Octave Band Sound Pressure Levels (dB) of Sound Emitted to any Receiving Class B Land from Class C Land Class B Land Class A Land 31.5 80 79 72 63 79 78 71 125 74 72 65 250 69 64 57 500 63 58 51 1000 57 52 45 2000 52 46 39 4000 48 41 34 8000 45 39 32