The label on my ROPS lists the OSHA standard that it complies with. A quick search of the OSHA Web site turned up the following:
29 CFR 1928.51(b)(1)
"Roll-over protective structures (ROPS). A roll-over protective structures (ROPS) shall be provided by the employer for each tractor operated by an employee. Except as provided in paragraph (b)(5) of this section, ROPS used on wheel-type tractors shall meet the test and performance requirements of the American Society of Agricultural Engineers Standard (ASAE) Standard S306.3-1974 entitled "Protective Frame for Agricultural Tractors -- Test Procedures and Performance Requirements" and Society of Automotive Engineers (SAE) Standard J334-1970, entitled "Protective Frame Test Procedures and Performance Requirements" (formerly codified in 29 CFR 1928.52); or ASAE Standard S336.1-1974, entitled "Protective Enclosures for Agricultural Tractors - Test Procedures and Performance Requirements" and SAE J168-1970, entitled "Protective Enclosures - Test Procedures and Performance Requirements" (formerly codified in 29 CFR 1928.53)(1); or 1926.1002 of OSHA's construction standards."
Happy reading! /forums/images/graemlins/grin.gif