Sound Emitted to Class A Land

Section 901 Section 901.102  Sound Emitted to Class A Land a)         Except as elsewhere provided in this Part, a person must not cause or allow the emission of sound during daytime hours from any property-line noise source located on any Class A, B or C land to any receiving Class A land that exceeds any allowable octave band sound pressure level specified in the following table, when measured at any point within the receiving Class A 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 A Land from Class C Land Class B Land Class A Land 31.5 75 72 72 63 74 71 71 125 69 65 65 250 64 57 57 500 58 51 51 1000 52 45 45 2000 47 39 39 4000 43 34 34 8000 40 32 32 b)         Except as provided elsewhere in this Part, person must not cause or allow the emission of sound during nighttime hours from any property-line noise source located on any Class A, B or C land to any receiving Class A land that exceeds any allowable octave band sound pressure level specified in the following table, when measured at any point within the receiving Class A 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 A Land from Class C Land Class B Land Class A Land 31.5 69 63 63 63 67 61 61 125 62 55 55 250 54 47 47 500 47 40 40 1000 41 35 35 2000 36 30 30 4000 32 25 25 8000 32 25 25