District of Columbia Contractor License

Bidding construction in the District of Columbia requires clearing the Department of Licensing and Consumer Protection (DLCP) before you contract. DC generally requires a license for construction work, structured around multiple license categories tied to project size and type, and all contractors must also hold a Basic Business License. Because the right category depends on the scope and scale of the work, your first step in any DC bid is matching the project to the correct license class; bidding under the wrong category can leave you unqualified for the work you win. Contractors must also register with DC tax authorities, so tax standing is part of the licensing picture.

DC requires an exam and mandates 6 hours of continuing education every 2 years, a modest but real ongoing obligation to keep current. The District does not accept the NASCLA exam, but it does maintain reciprocity agreements with Maryland and Virginia, which is significant given how many contractors operate across the DC metro region. If you hold a Maryland or Virginia credential, confirm with DLCP exactly how that reciprocity applies to your license class and scope before relying on it for a DC bid, since reciprocity rarely covers every category automatically. Specialty trades, including electrical, plumbing, HVAC, and refrigeration, are licensed separately, so verify each sub's DC credentials.

The risk of bidding or building unlicensed in DC includes fines up to $2,000 per violation and potential criminal charges for repeat offenders. Beyond the direct penalties, operating without the proper Basic Business License and contractor category in a consumer-protection-driven jurisdiction can jeopardize contract enforceability and your standing for future awards. Build verification of your license category, Basic Business License, tax registration, continuing education status, and subcontractor trade licenses into your pre-bid checklist so a compliance gap never costs you a District project.