N.Y. Comp. Codes R. & Regs. tit. 6, § 450.3 – Allowable noise levels.

Motor vehicle noise emissions, when measured according to the rules of Parts 450-454, shall not exceed the values specified in Table 1 below:

TABLE 1

MAXIMUM PERMISSIBLE SOUND LEVEL READINGS [DECIBEL (A)]¹^,²


	Highway operations test
If the distance between the microphone
location point and the microphone	Soft site	Hard site
target point is—	35 mi/h	Above	35 mi/h	Above	Soft	Hard
	or less	35 mi/h	or less	35 mi/h	site	site
35 ft. (10.7 m) or more but less than 39 ft. (11.9 m)	89	93	91	95	89	91
39 ft. (11.9 m) or more but less than 43 ft. (13.1 m)	88	92	90	94	88	90
43 ft. (13.1 m) or more but less than 48 ft. (11.6 m)	87	91	89	93	87	89
48 ft. (14.6 m) or more but less than 58 ft. (17.1 m)	86	90	88	92	86	88
58 ft. (17.1 m) or more but less than 70 ft. (21.3 m)	85	89	87	91	85	87
70 ft. (21.3 m) or more but less than 83 ft. (25.3 m)	84	88	86	90	84	86

The speeds shown refer to measurements taken at sites having speed limits as indicated. These speed limits do not necessarily have to be posted.

Table 1 takes into account both the distance correction factors contained in § 454.2 of this Title and the ground surface correction factors contained in § 454.3 of this Title and may be used in lieu of applying these correction factors to the measured sound level.