Classification 328
District of Columbia 328 — Class 5A Boiler Operator (25 HP or Less) Exam Prep
Prep for the District of Columbia Class 5A Boiler Operator (25 HP or Less) trade exam. Requirements vary by license, so confirm with the licensing board which exams you must pass.
Class 5A Boiler Operator (25 HP or Less) question bank is being built
The 328 trade bank isn't published yet, so we're not charging for it. Join the waitlist for 328 and we'll email you the moment it's live.
Official resources
- DC Department of Licensing and Consumer Protection (DLCP), Board of Industrial Trades
- Official District of Columbia examination study guides
- PSI Services (exam administration)
ContractorPrepHQ is an independent study platform and is not affiliated with DC Department of Licensing and Consumer Protection (DLCP), Board of Industrial Trades or PSI Services. Verify current exam requirements with the licensing authority.