(1) All outriggers must have a stable base under the outrigger or equivalent leveling pads as recommended by the equipment manufacturer.

(2) Outriggers must have a means to hold them in both the retracted and extended position.

(3) Hydraulic outriggers must have a positive holding device (velocity fuse, load check valve, manually operated valve or equivalent) to prevent movement of the piston in the event of a hose, fitting or other failure in the hydraulic system except when proper blocking is provided.