Electrical Level 4, 12th edition

Electrical Level 4 is the culmination of an exciting journey for aspiring electricians, featuring a deep dive into specific areas of industry expertise, such as HVAC systems, health care facilities, fire alarms and emergency systems. By the end of the four-part series, you’ll have the practical skills and knowledge to install, maintain and repair electrical systems across residential, commercial and industrial jobsites.

The 12th Edition has been fully updated to align with the 2026 National Electrical Code^®, including all content, illustrations and instructional materials. Level 4 includes two new Journeyman Essentials modules reinforcing key electrical concepts, as well as a new module consolidating all material related to non-dwelling (commercial) applications.