Section 296-307-090 - Requirements that apply to overhead protection for operators of agricultural and industrial tractorsThis section applies to wheel-type agricultural tractors used in construction work and to wheel-type industrial tractors used in agriculture work.
(1) If grid or mesh is used for overhead protection, the largest permissible opening is 1. 5 in. (38 mm.) in diameter. The overhead protection must not be installed in such a way as to become a hazard in the case of upset.(2) All equipment used in site clearing operations must have rollover guards meeting the requirements of this chapter. The employer must ensure that rider-operated equipment is equipped with an overhead and rear canopy guard meeting the following requirements: (a) The overhead covering is at least eighth-inch steel plate or quarter-inch woven wire mesh with openings no greater than one inch, or equivalent.(b) The opening in the rear of the canopy structure is covered with not less than quarter-inch woven wire mesh with openings no greater than one inch.(3) Overhead protection that meets the provisions of SAE Standard J334 (July 1970) for rubber-tired dozers and rubber-tired loaders also meets the requirements of this standard.Wash. Admin. Code § 296-307-090
Amended by WSR 20-21-091, Filed 10/20/2020, effective 11/20/202097-09-013, recodified as § 296-307-090, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW 49.17.040, [49.17.]050 and[49.17.]060 . 96-22-048, § 296-306A-090, filed 10/31/96, effective 12/1/96.