About the Wisconsin Master Electrician license
Wisconsin licenses electricians through the Wisconsin Dept. of Safety and Professional Services (DSPS). The Master Electrician is the senior credential. Under Wis. Admin. Code SPS 305.443, the most common path is to first hold a Wisconsin journeyman electrician license, accumulate about 12 months of additional documented experience as a licensed journeyman, then sit for the master exam that adds heavier load-calculation, design, and code-application content. A holder at this level can typically pull permits, supervise journeymen and apprentices, design installations, and serve as the qualifying individual for a licensed contracting business.
The exam is open book. The DSPS master electrician licensure page, read October 7, 2026, allows three references: one binder of SPS 305, SPS 316, and three-hole-punched printed notes; the 2023 NEC or Handbook; and up to two printed bound reference books. Loose papers, removable tabs, sticky notes, paperclips, and practice exams are not allowed. Tabs that come with a bound book, and three-ring paper dividers, are allowed. Plan to tab the 2023 book before test day. The exam is as much a test of how fast you can locate a section as it is of what you have memorized.
Know these scope facts cold, because the exam asks them in plain-language form: the license is held by the individual, not the company; most installations require a permit and inspection before concealment (rough-in) and again at final; you must work within the classification you hold; and performing electrical work without the required license, or beyond your scope, is a violation that can cost you the license and carry civil penalties.
How Wisconsin licensing works
- Experience: documented hours in the trade (apprentice and journeyman time), with the senior license requiring journeyman time on top of the base requirement.
- Education: approved instruction hours or completion of an approved apprenticeship program count toward the journeyman experience that underlies the master credential.
- Application: submit the application, fees, and proof of experience (often signed off by a supervising/master electrician or employer) to the board before you are approved to sit.
- Exam vendor: Pearson VUE or a DSPS exam location. The licensure page states the passing score is 70 percent. The trades schedule lists this exam as 50 questions and 4 hours.
- Renewal: licenses renew on a fixed cycle and usually require continuing education, including code-update hours each time a new NEC edition is adopted.
The licensure page names the 2023 NEC. Wisconsin skipped the 2020 NEC. SPS 316.007 adopts the 2023 NEC, including TIAs and errata issued before January 1, 2025. Ampacity, GFCI, and service-disconnect rules in this guide are the 2023 text as SPS 316 amends it.
This is the opening of the full study guide. The complete guide continues into code navigation, worked calculations and solved exam questions.
