30 CFR 56.14103 - Operators stations.
(a) If windows are provided on operators' stations of self-propelled mobile equipment, the windows shall be made of safety glass or material with equivalent safety characteristics. The windows shall be maintained to provide visibility for safe operation.
(b) If damaged windows obscure visibility necessary for safe operation, or create a hazard to the equipment operator, the windows shall be replaced or removed. Damaged windows shall be replaced if absence of a window would expose the equipment operator to hazardous evironmental conditions which would affect the ability of the equipment operator to safely operate the equipment.
(1) Be free of materials that could create a hazard to persons by impairing the safe operation of the equipment; and
Title 30 published on 2013-07-01
no entries appear in the Federal Register after this date.