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Montana license examsElectrician and Plumber

Montana tests electrician and plumber license applicants. Each trade has its own exam and testing company.

Journeyman and master exams in Montana

Electrician

Who gives it: PSI¹
Code book: 2020 National Electrical Code (exam based on the 2020 NEC as of June 10, 2022)
Open book: Yes
Exam fee: $190

Hours and license steps

Plumber

Who gives it: IAPMO²
Code book: 2021 Uniform Plumbing Code (IAPMO)
Exam fee: $270

Hours and license steps

How do you book the exam?

Apply to the Montana DLI Business Standards first. The board approves your application, then tells you how to schedule with the testing company. Montana DLI Business Standards

Sources

Montana electrician license: exam (boards.bsd.dli.mt.gov, 2026-10-27)
Montana plumber license: exam (boards.bsd.dli.mt.gov, 2026-10-27)