The purpose of this course is to teach the basic safety principles and practices applicable to underground line maintenance work. The principles covered are applicable to work area safety, to the use of test equipment to ensure respiratory and electrical safety, to ensure the structural integrity of underground work sites, to the use of respirators, and to emergency responses.

At the conclusion of this course, participants should be able to identify some of the hazards found in and around underground work areas. They should be able to recognize and explain methods used to provide a safe work environment. They should also be able to describe the use of personal safety equipment and identify the safety considerations involved in a typical vault emergency.