The employer shall ensure that, except for side boom pipe laying tractors and compactors, rollover protective structures of substantial strength be used with the following types of materials handling equipment:
N.H. Admin. Code § Lab 1403.52
#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 1403.66 )
New. #8796, eff 1-11-07 (from Lab 1403.56 )