Section R. 408.15331 - ClimbingRule 5331.
(1) An approved safety belt, tree trimming saddle belt or rope saddle shall be used by an employee when aloft.(2) A climbing rope shall be crotched as soon as possible after the employee is aloft and located in a crotch, when possible, at a height over the work area as to swing the employee away from any conductor or line in case of a fall.(3) The climbing employee shall remain tied in until the work is completed and he has returned to the ground.(4) If it becomes necessary to recrotch, the employee aloft shall retie in or use a safety strap before releasing the previous tie.(5) An employee shall not climb a tree during a storm or high wind or when covered with ice or snow, except when performing emergency service.Mich. Admin. Code R. 408.15331