District of Columbia Contractor License Exam Prep
Prep for the District of Columbia contractor licensing exams, with a trade exam for each license. Which exam you must pass depends on your license, so confirm the requirement with the licensing board, then pick your exam below.
Trade exams by classification
307Journeyman Electrician220Master Electrician302Journeyman Plumber312Journeyman Air Conditioning and Refrigeration303Master Plumber310Journeyman Plumber with Gas304Master Plumber with Gas311Master A/C & Refrigeration Mechanical Unlimited309Low Voltage Electrician323Third Class Stationary Boilers335Sixth Class Stationary Boilers322Master Refrigeration and Air Conditioning Mechanic Limited301Journeyman Gas Pipe Fitter300Master Gas Pipe Fitter314Second Class Stationary Boilers313First Class Stationary Boilers824Residential Maintenance Electrician328Class 5A Boiler Operator (25 HP or Less)338Journeyman Sign Electrician
Pick your trade exam
Trade exam prep is $149 per license with instant access.