New Hampshire Code of Administrative Rules
Lab - Commissioner, Department of Labor
Chapter Lab 1400 - SAFETY AND HEALTH OF EMPLOYEES
Part Lab 1403 - RULES FOR EMPLOYEE SAFETY AND HEALTH
Section Lab 1403.41 - Noise Exposure
Current through Register No. 40, October 3, 2024
The employer shall ensure compliance with the following requirements:
(a) Protection against the effects of occupational noise exposure shall be provided when the sound levels exceed those shown in Table 3, Permissible Noise Exposures. Feasible engineering or administrative controls shall be utilized to keep exposure below the allowable limit.
(b) When engineering or administrative controls fail to reduce the noise level to within the levels of Table 1400.1, personal protective equipment shall be provided and used to reduce the noise to an acceptable level.
(c) Exposure to impulsive or impact noise should not exceed 140 dB peak sound pressure level.
Table1400.1 Permissible Noise Exposure
|
Sound Level |
|
|
dBA Slow |
|
|
Duration Per Day, Hours |
Response |
|
8 |
90 |
|
6 |
92 |
|
4 |
95 |
|
3 |
97 |
|
2 |
100 |
|
1-1/2 |
102 |
|
1 |
105 |
|
1/2 |
110 |
|
1/4 or less |
115 |
#4118 eff 8-22-86, EXPIRED: 8-22-92
New. #6684, eff 2-4-98, EXPIRED: 2-4-06
New. #8606, INTERIM, eff 4-12-06, EXPIRED: 10-09-06 (formerly Lab 1403.54)
New. #8796, eff 1-11-07
