CDL English Proficiency Rules 2026: What to Know

Commercial drivers must read and speak English well enough to talk with the public, read road signs, answer officers' questions and fill out reports. That rule is not new, but since 2025 it is enforced much harder, and a driver who fails a roadside English check can be put out of service on the spot.

What the rule says

49 CFR 391.11(b)(2) says a driver must be able to read and speak English well enough to talk with the general public, understand highway traffic signs and signals in English, respond to official inquiries, and make entries on reports and records.

What changed

April 28, 2025. An executive order told FMCSA to enforce the English rule and to make a violation an out-of-service matter.
May 20, 2025. FMCSA issued an enforcement policy on English proficiency for its inspection staff.
June 25, 2025. The Commercial Vehicle Safety Alliance's out-of-service criteria began treating an English violation as a reason to place a driver out of service.
April 16, 2026. FMCSA updated its policy, including a rule for the U.S.-Mexico border commercial zones.
June 1, 2026. Texas began giving all CDL and CLP knowledge tests in English only.
August 10, 2026. FMCSA proposed to write the out-of-service rule into the federal regulations. It is a proposal, with comments due October 9, 2026, so check the Federal Register for the final rule.

States are acting too. In California, for example, the DMV says the entire CDL road test is given in English. Check your own state's rules before you test.

How a roadside check works

FMCSA's guidance says inspectors start in English. If the driver may not understand, the inspector asks questions in an interview. If the driver passes the interview, the inspector then checks whether the driver understands U.S. highway signs, including electronic message signs.

What this means for you

Study in English. Some states still offer written tests in other languages, but on the road you will be checked in English.
Know road signs and officer questions. Be ready to say where you are going, what you are hauling and what documents you carry.
Expect employers to check. Many carriers treat English as a job requirement.

How to prepare if English is your second language

Practice every CDL question in English. Use your first language only to understand why an answer is right.
Learn the words that come up again and again: brake, coupling, placard, cargo, inspection, hazard.
Practice short spoken answers out loud, like where you are going and what you are carrying.
Learn the wording of common highway signs.

Try 10 exam-style questions built from the official CDL manual, in English.

More practice: the General Knowledge test, the Air Brakes test, and all CDL practice tests. Planning the whole path? See CDL permit to license: every step.

Start in English, pass in English

FirstTry CDL practice questions are in English. The free Diagnostic shows your weakest topics so you can fix them first.

Common questions

Can I take the CDL written test in Spanish?

It depends on your state, and it is changing. Texas DPS gives all CDL and CLP knowledge tests in English only as of June 1, 2026. Washington lists several languages for its CDL knowledge test. Even where another language is allowed, you still need English to drive commercially.

What happens at a roadside English check?

FMCSA guidance says the inspector starts in English. If the driver may not understand, the inspector does an interview, then a highway sign check. A driver who cannot show proficiency can be placed out of service.

Does this apply to drivers who stay in one state?

The federal rule is in 49 CFR part 391, which applies to drivers in interstate commerce. Your state may have its own rule for in-state driving, so check with your state.

Is the English rule new?

No. The requirement in 49 CFR 391.11(b)(2) has existed for years. What changed in 2025 is how it is enforced.