What's the difference between ANSI A92.20 and OSHA aerial-lift rules?
ANSI A92.20 is the consensus design and operating standard for MEWPs. OSHA 1926.453 and 1910.67 reference earlier ANSI versions and enforce against them. New equipment is built to the current ANSI A92.20; older equipment in service is grandfathered to the version current at its manufacture date.