This SAE Standard applies to horizontal earthboring machines of the following types: a. auger machines; b. pipe pushers; c. rotary rod machines; d. impact machines; and e. horizontal directional drilling machines.

Additional information on machines of this type may be found in SAE J2022 and SAE J2305. This document does not apply to specialized mining machinery such as conveyors, tunnel-boring machines, pipe-jacking systems, and microtunnelers.

The purpose of this document is to encourage common terminology of machine control names, types, and definitions for horizontal earthboring machines.