On June 1, 2026, the Texas Department of Public Safety announced that all Texas commercial driver license and commercial learner permit knowledge examinations would be administered in English only, effective that same day. Before that, DPS offered the CDL knowledge test in English and Spanish. The announcement also stated plainly that interpreters for those exams are prohibited.
Two things get confused constantly in discussions of this change, and getting them mixed up will cost you time. The first is the testing rule: what language the written and automated exams are given in at a Texas driver license office. The second is the English language proficiency (ELP) requirement in the federal driver qualification rules, which applies to you at the roadside every day you operate a commercial vehicle, whether you were licensed last month or twenty years ago. They are separate rules, from separate authorities, with separate consequences.
This page sets out what each one actually says, who issued it, and what an applicant whose first language is not English should expect. It assumes you already know the general shape of the Texas licensing path — CLP, the 14-day wait, ELDT, the three-part skills test — which we cover separately in our Texas CDL process guide. Castmark Press is an independent publisher, not affiliated with DPS, FMCSA, or CVSA, and Texas DPS's current instructions always win over anything written here.
The DPS news release (HQ 2026-055, dated June 1, 2026) states that effective that day, all Texas CDL and CLP knowledge examinations are administered in English only. It says applicants scheduled for CDL or CLP knowledge testing on or after June 1, 2026 "should be prepared to complete all written and automated knowledge exams in English," and that interpreters for these exams are prohibited. Because it refers to all knowledge exams, this reaches the General Knowledge test and every additional written test in the set — air brakes, combination vehicles, and each endorsement test you sit for.
The release also says what did not change: "The hands-on CDL skills test, which includes pre-trip inspection, basic control skills and the road test, has always been conducted in English only." That part is federal and predates 2026. Under 49 CFR 383.133(c)(5), interpreters are prohibited during skills tests, applicants must be able to understand and respond to verbal commands and instructions in English from the examiner, and neither the applicant nor the examiner may communicate in a language other than English during the skills test.
So the practical delta for a Texas applicant is narrow but real: the Spanish-language written CDL exam is gone. Everything on the skills-test side is where it already was.
This was not an FMCSA rulemaking. As of the eCFR currency date of August 14, 2026, the federal regulation governing CDL test methods still reads, at 49 CFR 383.133(b)(3), that knowledge tests "may be administered in written form, verbally, or in automated format and can be administered in a foreign language, provided no interpreter is used in administering the test." The section has not been amended since October 4, 2016, and that amendment only swapped "July 2010" for "July 2010 or newer" elsewhere in the section — the foreign-language sentence itself has read the same way since the rule that created it on May 9, 2011. Federal law permits a state to offer the knowledge test in another language; it does not require English-only knowledge testing, and no rulemaking changing that had been published in the Federal Register as of mid-August 2026.
It was also not Executive Order 14286. That order, "Enforcing Commonsense Rules of the Road for America's Truck Drivers," signed April 28, 2025 and published at 90 FR 18759, directs FMCSA to rescind a 2016 enforcement policy, issue new roadside inspection guidance under 49 CFR 391.11(b)(2), work to get ELP violations into the out-of-service criteria, and review non-domiciled CDL issuance. It says nothing about the language of knowledge tests.
What remains is a Texas policy decision by DPS. DPS frames it as aligning state testing procedures with FMCSA's English language proficiency requirements. It follows a September 4, 2025 directive from the Governor's office instructing DPS to enforce the federal ELP requirements with zero tolerance, including for drivers operating only within Texas. The consequence worth internalizing: because this is a state choice within a permissive federal rule, other states may handle test language differently, and Texas could revise its own approach without any federal action.
The ELP requirement lives at 49 CFR 391.11(b)(2), in the driver qualification rules. A person is qualified to drive if he or she "[c]an read and speak the English language sufficiently to converse with the general public, to understand highway traffic signs and signals in the English language, to respond to official inquiries, and to make entries on reports and records." FMCSA traces that requirement to Interstate Commerce Commission rules from 1936 and 1937.
Its enforcement changed sharply in 2025. A June 15, 2016 FMCSA policy memo had directed personnel to cite ELP violations but not place drivers out of service. E.O. 14286 directed that memo's rescission; FMCSA issued replacement guidance (MC-SEE-2025-0001) on May 20, 2025; and the CVSA board voted on May 1, 2025 to add ELP violations to the North American Standard Out-of-Service Criteria effective June 25, 2025. A further FMCSA memo dated April 16, 2026 (MC-SEE-2026-0002) added a trip-scope test for inspections inside the U.S.-Mexico border commercial zones, and CVSA revised its criteria on April 19, 2026 to point at whatever FMCSA's current guidance is.
FMCSA describes the roadside evaluation as two steps: a driver interview to test the ability to respond to official inquiries, then, only if the driver passes that step, a highway traffic sign recognition assessment. FMCSA's guidance to motor carriers doing their own qualification screening (FMCSA-DQ-391.11-FAQ001, May 22, 2025) says interpreters, I-Speak cards, cue cards, and phone translation apps should not be used during the interview because they can mask an inability to communicate in English — though it also says the driver's explanation of highway signs "may be in any language, provided the manager is able to understand" it.
One more distinction: none of this is settled federal regulation yet. On August 10, 2026 FMCSA published a notice of proposed rulemaking (91 FR 51422, Docket FMCSA-2026-0826, RIN 2126-AC99) proposing to write the out-of-service consequence into 49 CFR 390.5, 390.5T, and 391.11. Comments close October 9, 2026. It is a proposal. The out-of-service practice today rests on CVSA's criteria and FMCSA enforcement policy, not on the text of the regulation.
Plan on doing the entire written stage in English, with no interpreter in the room. That includes the General Knowledge test and every endorsement test. Then plan on doing the skills test in English too, because that has always been the rule.
The state's source document is the Texas Commercial Motor Vehicle Drivers Handbook (DL-7C), revised March 2026, published free by DPS and built on AAMVA's model manual. If you are studying from anything else, check it against the handbook. The vocabulary is the real obstacle for many applicants — not the driving concepts, which most already understand, but terms like "tractor protection valve," "offtracking," "shipping paper," and the exact English names of signs and controls. Working through practice questions in English, and reading the explanations rather than just the answer letters, is the drill that closes that gap; our Texas CDL study guide and its free companion web app at castmarkpress.com/tx/ are built for exactly that, and both are English-only for the same reason the test now is.
Do not treat the written test as the finish line for the language question. The ELP requirement applies for as long as you drive. A driver who fails a roadside ELP evaluation is placed out of service under the current criteria, with a narrow exception for trips that stay inside the U.S.-Mexico border commercial zones. Passing the knowledge test in English is a licensing step; ELP is an ongoing qualification.
For the operational details — appointment scheduling, retest waiting periods, fees, which offices administer which tests — go to the DPS commercial driver license pages and follow their current instructions. Those items change without much notice and we do not publish figures for them.
The federal knowledge-test regulation and Texas practice are now out of alignment in a way that could resolve in either direction. Federal rules still permit foreign-language knowledge tests without an interpreter; Texas no longer offers one. A future FMCSA rulemaking could close the gap nationally, but none had been published as of August 18, 2026.
The ELP out-of-service NPRM is open for comment until October 9, 2026, and the final rule may differ from the proposal. The border commercial zone exception exists in enforcement policy and in CVSA's criteria; enforcement policy can be revised at any time, as it was in 2016, in 2025, and again in April 2026.
Finally, the DPS release is short, and it does not address every situation an applicant might have — for example, whether a printed dictionary is permitted in the test room, or how disability accommodations are handled for the knowledge test now that interpreters are barred. We have not found published DPS guidance on those points and are not going to guess. Ask the driver license office directly, and rely on what DPS tells you rather than on a summary written by anyone else, including us.
No. Texas DPS announced on June 1, 2026 that all CDL and commercial learner permit knowledge examinations are administered in English only, effective that date. Spanish had previously been available for the CDL knowledge test.
No. The DPS announcement states that interpreters for these exams are prohibited. Interpreters are also prohibited during the skills test under federal rule 49 CFR 383.133(c)(5), and neither you nor the examiner may communicate in a language other than English during it.
No. As of the eCFR text current to August 14, 2026, 49 CFR 383.133(b)(3) still allows a state to administer the knowledge test in a foreign language provided no interpreter is used. Texas chose English-only on its own, describing it as alignment with FMCSA's English language proficiency requirements. Other states may differ, so check the licensing agency where you are testing.
No. The testing change is a Texas DPS policy about the language of the written exams. The ELP requirement is 49 CFR 391.11(b)(2), a federal driver qualification standard requiring that you can read and speak English sufficiently to converse with the public, understand highway traffic signs and signals in English, respond to official inquiries, and make entries on reports and records. It applies at the roadside for as long as you drive.
Under CVSA's North American Standard Out-of-Service Criteria, effective June 25, 2025, a driver who cannot satisfy the ELP requirement is placed out of service. FMCSA's April 16, 2026 enforcement policy carves out an exception where the driver's current trip does not take them outside the U.S.-Mexico border commercial zones; in that case the violation is cited but no out-of-service order is issued. FMCSA has proposed writing the out-of-service consequence into the regulations, with comments closing October 9, 2026.
Rules change. Where a figure or a procedure can move, the issuing agency’s current published instructions win over anything here.
