Section R. 408.12019 - Trolley and bridge stopsRule 2019.
(1) Stops shall be provided at ends of travel of the trolley or bridge.(2) Stops shall be provided at open ends other than the ends of runs. These may occur at track switches, interlocking cranes, track opener, lift-out section, turntables, and drop, lift, or transfer sections. Such stops shall meet the same safety requirements as the end stop.(3) Stops shall be provided to resist forces of impact of a crane or trolley carrying its rated load at 40% of the rated speed.Mich. Admin. Code R. 408.12019