CDL Requirements in Connecticut (2026): Steps, Cost & Testing

Source review dated October 12, 2026 against Connecticut Department of Motor Vehicles (DMV)

Connecticut issues CDLs through the Department of Motor Vehicles (DMV). You hold a regular Connecticut license, self-certify your driving type online, register with the FMCSA Drug and Alcohol Clearinghouse, then get a Commercial Learner's Permit for $20 (general knowledge test $16). After completing ELDT and holding the CLP at least 14 days, you pass a three-part skills test in a truck you supply, scheduled through the DMV's Driver Examination unit. The CDL costs $70 and is valid four years.

This guide combines federal rules with dated state research. Read the review notes before paying fees or booking a test.

State fees are modest: about $20 for the CLP, $16 for the general knowledge test (plus $5 for air brakes, combination, and each endorsement), $30 for the skills test, and $70 for the four-year CDL. The larger expense is ELDT tuition, estimated near $5,000–$10,000 for a private Class A program in Connecticut, plus a DOT physical and, for hazmat, the TSA fingerprint fee.

Skills tests are run by the DMV's Driver Examination Unit — you schedule by emailing Form R-405 after your 14-day CLP hold and bring your own representative truck. Unlike the eight TSA self-managed states, Connecticut sends hazmat applicants through the standard federal Universal Enrollment/IdentoGO screening rather than fingerprinting them at the DMV.

Eligibility and documents in Connecticut

• Age: at least 18 for intrastate driving; 21 to drive interstate or haul hazmat.
• A valid Connecticut driver's license
• REAL ID-compliant proof of identity
• Proof of Social Security number
• Proof of legal presence in the United States
• Proof of Connecticut residence (two separate documents)
• Completed Application for Commercial Driver's License (Form R-229a)
• Printed confirmation of your online CDL self-certification
• A valid medical examiner's certificate on file (self-cert categories that require one)

How to get your CDL: step by step

1. 1

   Check eligibility, documents, and medical qualification

   Choose the CDL class and endorsements for your vehicle. Hold the required regular license and bring Connecticut identity, residency, and Social Security documents. Self-certify your operating category and complete a DOT physical before the permit if that category requires medical certification.

2. 2

   Pass the knowledge tests and obtain your CLP

   Take general knowledge and the vehicle/endorsement tests that apply. ELDT theory may be taken earlier, but federal rules do not require it before the CLP. A first-time hazmat applicant must complete hazmat theory before the hazmat knowledge test; hazmat is not issued on a CLP.

3. 3

   Complete required training and practice during the permit hold

   Hold the CLP for at least 14 days before the skills test. Use a qualified supervising driver for public-road practice. First-time Class A/B, B-to-A upgrades, and first-time P/S endorsements require applicable theory and behind-the-wheel ELDT from registered providers. The appropriate CLP is needed for public-road training. State training requirements may add to the federal baseline.

4. 4

   Pass the skills test in the right vehicle

   Confirm ELDT completion is recorded, arrange the test and a representative vehicle, then complete vehicle inspection, basic control, and road driving. The vehicle and transmission you test in can restrict your license.

5. 5

   Complete issuance and maintain your qualifications

   Pay the applicable Connecticut issuance fees and confirm the correct class, endorsements, restrictions, and expiration. Keep your medical status current when required and follow the agency’s renewal instructions.

Medical certification in Connecticut

Self-certify your driving type through the DMV's online self-certification system, print the email confirmation, and bring it to your DMV appointment. Connecticut DMV states that, effective June 16, 2025, paper medical examiner certificates are not accepted for CDL and CLP holders; a certified medical examiner on the National Registry of Certified Medical Examiners transmits your certificate electronically to the DMV, and you no longer upload it yourself. You can check your medical status with the DMV's online license status tool.

If your card lapses: Keep a valid medical certificate on file continuously. If your certificate expires, the DMV downgrades your CDL to a Class D license or cancels your CLP. The DMV checks your Drug and Alcohol Clearinghouse status before any CLP or CDL transaction as well.

Every CDL holder must self-certify one operating category. The categories offered here:

• NI — Non-excepted Interstate (operates in and outside Connecticut; medical card required)
• EI — Excepted Interstate
• NA — Non-excepted Intrastate (operates only within Connecticut; medical card required)
• EA — Excepted Intrastate

New to the DOT physical? See our DOT physical guide and CDL medical card explainer.

What a CDL costs in Connecticut

These are separate transaction types, not charges that every applicant pays. Renewal, replacement, endorsement, and retest fees are alternatives or extras. Amounts are from the dated research; check current official fees before paying.

Connecticut charges per test — $16 general knowledge and $5 each for air brakes, combination, and endorsements — plus a $30 skills test and $70 CDL, on top of the $20 CLP. The biggest cost is ELDT tuition. For hazmat, add the TSA/IdentoGO fingerprint fee (about $85.25, confirm with TSA). Fees confirmed against the CT DMV CLP/CDL pages 2026-07-20.

See the full national breakdown on our CDL cost guide.

Skills testing in Connecticut

Testing access: State testing; confirm exceptions. Official testing instructions.

Connecticut administers CDL skills tests through the state; approved public third-party testing is limited or unavailable. Skills testing is by appointment through DETU and the appointment system is updated in real time; specific wait times vary by location and season and are not published — confirm current availability with the Connecticut DMV.

Your test vehicle: You must supply your own representative commercial vehicle for the class you're testing for; the DMV does not provide a test vehicle. The vehicle cannot carry loaded cargo, cannot bear farm/transporter/dealer/repairer plates, cannot use a truck-tractor to represent a Class B, and a trailer cannot exceed 48 feet.

Endorsements available in Connecticut

Connecticut offers the standard federal endorsements. Adding one usually means an extra knowledge test (and a skills test for passenger and school bus). Tap an endorsement for the full federal process and cost:

• HHazmat — Connecticut is NOT one of the eight TSA self-managed hazmat states, so hazmat uses the standard federal process: pass the hazmat knowledge test, then complete the TSA Security Threat Assessment (fingerprints/background check) through the Universal Enrollment Services vendor (IDEMIA/IdentoGO) at universalenroll.dhs.gov — not at the DMV. The published TSA application and fingerprint fee is about $85.25 (confirm current amount with TSA/IdentoGO). Minimum age 21.
• NTanker — Tank vehicle endorsement — $5 knowledge test.
• XHazmat + Tank — Combined hazmat + tank; requires the hazmat TSA screening.
• PPassenger — Passenger endorsement; requires ELDT for first-timers and a passenger-vehicle skills test.
• SSchool Bus — School bus endorsement; requires the P endorsement plus school-bus ELDT and testing.
• TDoubles/Triples — Double/triple trailers (Class A); knowledge test only, no separate skills test.

CDL disqualifications

Disqualifying offenses are set by federal law (49 CFR 383.51) and apply in every state. Some also apply in a personal vehicle; vehicle-specific conditions matter. Connecticut applies the federal 49 CFR 383.51 disqualification framework (major offenses, serious traffic violations, railroad-crossing and out-of-service violations), carried into Connecticut General Statutes Title 14. Connecticut also checks your FMCSA Drug and Alcohol Clearinghouse status before issuing or upgrading a CLP or CDL, so an unresolved Clearinghouse prohibition will block the transaction.

The offenses that trigger a disqualification, the length of each, and the federal exceptions are listed once in our CDL disqualifications guide instead of repeating the table here. Check the review notes for any Connecticut-specific additions we could not confirm.

Military skills-test waiver

Check the temporary July 30–October 29, 2026 federal eligibility extension and ask the state whether it participates.

Connecticut participates in the federal Military Skills Test Waiver program, which lets qualifying service members and recent veterans with heavy-vehicle experience skip the CDL skills test if they still meet all FMCSR criteria and pass the required knowledge tests. Confirm the current application form and eligibility window with the Connecticut DMV.

Connecticut CDL FAQ