Colorado Journeyman PrepLicense, exam and code, in one place Start the free practice testPractice exam

Checked against primary sources 2026-09-05

The whole site

Every Page on This Site, Grouped

Every Colorado page here, in the order you meet it: what the state licenses, the exams and their format, the code edition in force, your city, and the free practice.

How this is organized

Each page below cites the rule, the statute section or the bulletin its numbers come from. Where sources disagree, the page says so instead of picking one.

The path

The licenses

Rules and money

The exam

The code

Your city

Study

Practice

Tools

Labs

Study

If your notes still say 2023

The 2023 to 2026 section crosswalk maps every section that moved, both directions, $29 once.

NEC and National Electrical Code are registered trademarks of the National Fire Protection Association.

Trojan Digital Marketing is an independent company. We are not affiliated with, endorsed by, or sponsored by NFPA, the Colorado State Electrical Board, PSI, or any licensing authority, school or union.

The Colorado examinations are open book only in the sense that PSI puts a book on the desk. PSI provides the National Electrical Code and a formula page at the test center, bars writing, highlighting, underlining and indexing on them, and allows no other materials. The questions have followed the 2026 edition since 1 August 2026, and the 2023 book is provided on request until 1 November 2026.

All practice questions are original. They are not actual exam questions.

Built and maintained by Jeff Clerisier, Trojan Digital Marketing.

Every rule here is cited to the section it comes from, and corrections are logged in public with the date. This is study material rather than electrical advice, and it does not replace your own code book or your inspector.

Free, weekly

One exam question a week, worked all the way through

One original question in the Colorado style, the arithmetic worked, the code section named, and a short note whenever a Colorado licensing or code rule moves. Unsubscribe in one click.