Guides

Short, sourced answers to the questions behind the numbers.

From Apprentice to Master: How Long Each State TakesMinimum years from first day to journeyman and master or contractor, worked out from each state's own hour and year rules. Trade License Fees by State: What They Add Up ToApplication, exam and license fees printed by state boards for electricians, plumbers, HVAC and contractors, and where no fee is published. How Trade License Exams WorkWho runs electrician, plumber, HVAC and contractor exams, the published pass marks, and what the state sources say about retakes. License or Registration: What the State Is CheckingWhy some states test tradespeople and others only register contractors, and what each credential on this site actually proves. Trade License Reciprocity Between StatesWhich state boards name reciprocity partners for electricians and plumbers, what conditions apply, and which only review out-of-state licenses.