56.14130 (e)(2) Roll-over protective structures (ROPS) and seat belts

Alterations or repairs on ROPS shall be performed only with approval from the ROPS manufacturer or under the instructions of a registered professional engineer with knowledge and experience in ROPS design. The manufacturer or engineer shall certify that the ROPS meets the applicable performance requirements.

56.14130 (a) Roll-over protective structures (ROPS) and seat belts

(a) Equipment included. Roll-over protective structures (ROPS) and seat belts shall be installed on— (1) Crawler tractors and crawler loaders; (2) Graders; (3) Wheel loaders and wheel tractors; (4) The tractor portion of semi-mounted scrapers, dumpers, water wagons, bottom-dump wagons, rear-dump wagons, and towed fifth wheel attachments; (5) Skid-steer loaders; and (6) Agricultural tractors.

56.14132 Horns and backup alarms

(a) Manually-operated horns or other audible warning devices provided on self-propelled mobile equipment as a safety feature shall be maintained in functional condition. (b)(1) When the operator has an obstructed view to the rear, self-propelled mobile equipment shall have— (i) An automatic reverse-activated signal alarm; (ii) A wheel-mounted bell alarm which sounds at least once …

56.14200 Warnings prior to starting or moving equipment

Before starting crushers or moving self-propelled mobile equipment, equipment operators shall sound a warning that is audible above the surrounding noise level or use other effective means to warn all persons who could be exposed to a hazard from the equipment.