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District of Columbia
District of Columbia CDL · Updated 2026

District of Columbia CDL Practice Tests

The District of Columbia issues both intrastate and interstate Commercial Driver Licenses through the DC DMV. Most testing happens at the Deanwood Road Test/CDL Services Office. The DC CDL Manual is published on dmv.dc.gov and covers all knowledge test topics and endorsements.

Based on the official state DMV CDL manual.

District of Columbia CDL quick facts

Min age (intrastate)

18 to drive a CMV within District of Columbia.

Min age (interstate)

21 to drive across state lines.

CLP hold period

14 days minimum before the skills test.

General Knowledge test

~50 Qs; 80% to pass.

Sources: DC DMV Commercial Driver License DC DMV CDL Learner Permits DC DMV CDL Eligibility and Documentation

District of Columbia CDL FAQ

What is the minimum age for a DC CDL?

18 for an intrastate CDL inside the District. You must be 21 to drive interstate or to carry hazardous materials.

Where do I take CDL tests in DC?

At the Deanwood Road Test/CDL Services Office. Bring all required documents and be ready to pay by card.

How much does a DC CDL cost?

$78 for the CLP, $117 for the CDL, $10 per knowledge test, $10 for the skills test, and $20 for each endorsement.

How long must I hold a DC CLP before the skills test?

At least 14 days, which matches the federal minimum.

Does DC require Entry-Level Driver Training?

Yes. First-time Class A or B applicants and first-time H, P, or S endorsements must complete ELDT from an FMCSA-registered provider.

What happens if I fail the CDL knowledge test in DC?

You must wait three calendar days and can retake the test on the fourth day.