This page presents the source material collected so far. Some requirements may still need direct confirmation.
DCDistrict of Columbia CDL permit test guide
The core course follows the national manual text most states use. When your state manual gives a different number, it wins.
- Licensing agency
- District of Columbia Department of Motor Vehicles
- Official CDL page
- dmv.dc.gov ↗
- Official CDL manual
- dmv.dc.gov ↗
- Testing, fees and appointments
- dmv.dc.gov ↗
- Knowledge-test language
- English only
- Source collection date
Steps to your CDL (federal minimums)
- Choose your class (A, B or C) and endorsements.
- Get a DOT medical exam from a provider on the National Registry and a medical examiner's certificate.
- Pass the knowledge tests at the state agency to get your commercial learner's permit (CLP).
- Hold the CLP at least 14 days and practice with a qualified CDL holder. A CLP is valid for up to one year (some states less).
- Complete entry-level driver training (ELDT) with a registered provider.
- Pass the skills test: pre-trip inspection, basic control and road test, in English.
- Get your CDL. You must be 21 to drive across state lines.
What is different in this state
- Test languages
All DC CDL knowledge tests are in English only.
- Knowledge tests
The general knowledge test has a 90-minute limit and each endorsement test 60 minutes. If you fail, wait 3 calendar days; after 6 failures in 12 months you must wait 12 months from the first failure.
- Also important
DC law requires a short (about 15-minute) online Human Trafficking Awareness training before a CLP is issued or an out-of-state CDL is converted. Knowledge tests are taken at the Deanwood Road Test/CDL office.
- State manual
DC still links the July 2014 version of the national manual, which uses some older numbers than newer manuals.
Where this state's manual differs
- 5.1.11 The DC manual says the low-air warning comes on below 60 psi; the newer national text says 55 psi.
- 5.3.2 In the air brake inspection steps, the low-air warning test and dual-system check also use 60 psi instead of 55 psi.
Source collection date:
The three permit tests
General Knowledge
Required for every CDL class.
Mock examAir Brakes
Needed to drive a vehicle with air brakes without an "L" restriction.
Mock examCombination Vehicles
Needed for Class A (tractor-trailers).
Mock exam7CDL is an independent study aid. It is not a government website, not affiliated with any state agency, FMCSA or AAMVA, and not an ELDT provider. Always check your state's official CDL manual and agency.