§ 42-413 Maximum permitted decibel levels
ZR § 42-413
In all Manufacturing Districts, the sound pressure level resulting from any activity, whether open or enclosed, shall not exceed, at any point on or beyond any lot line, the maximum permitted decibel levels for the designated octave band as set forth in the following table for the district indicated.
In the enforcement of this regulation, sounds produced by the operation of motor vehicles or other transportation facilities shall not be included in determining the maximum permitted decibel levels.
MAXIMUM PERMITTED SOUND PRESSURE LEVEL (in decibels)
District
Octave Band
(cycles per second)
M1
M2
M3
20 to 75
79
80
75 to 150
74
75
150 to 300
66
68
70
300 to 600
59
62
64
600 to 1,200
53
56
58
1,200 to 2,400
47
51
2,400 to 4,800
41
49
Above 4,800
39
44
46
