scope:

This standard specifies the special safety requirements for Mast Climbing Work Platforms (MCWP) either permanently or temporarily installed which are manually or power operated and which are used by one or more persons from wich to carry out work. The vertical moving components (work platform) are also used to move those same persons and their equipment and materials to and from a single boarding point. These restrictions differentiate MCWPs from builder's hoists. The standard can also be used for permanently installed MCWP. This standard is applicable to work platforms elevated by rack and pinion and guided by and moving along their supporting masts, where the masts may or may not require lateral restraint from separate supporting structures.