Definition(s)
Pole mast
Structure consisting of one or more tubular sections, telescoping or not telescoping, that are the load-bearing members. The structure, when erected to working position, usually requires guylines. It may be attached to a carrier, skid base, or substructure.
Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards
Pole mast
“Pole mast” means a structure which consists of 1 or more tubular sections, either telescoping or nontelescoping and which is a load-bearing member. The structure, when erected to working position, usually requires guylines. It may be attached to a carrier, skid base, or substructure. It is used in place of a derrick. [Mich. Admin. Code R 408 (2013)].
Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. Regulations