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General Knowledge
- 50 questions · 40 to pass
Approved third-party examiners, paid directly; the test (pre-trip, basic control and road test) normally takes two hours.
Start General KnowledgeNew Mexico’s MVD says every test part needs 80% to pass but doesn’t publish the number of questions. Practice with 2,100+ questions for all 8 New Mexico CDL knowledge tests.
Approved third-party examiners, paid directly; the test (pre-trip, basic control and road test) normally takes two hours.
Start General KnowledgePick a class first: then the ones that fit it unlock.
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You test the parking brake and the vehicle creeps forward. What should you do?
Everyone in New Mexico takes General Knowledge; your class and loads add the rest. Why 80% on every test
| Test | Questions | To pass | Can miss | Where to study |
|---|---|---|---|---|
| New Mexico CDL General Knowledge testEveryone | 50 | 40 | 10 | Sections 1, 2 and 3 |
| New Mexico CDL Combination Vehicles testClass A | 20 | 16 | 4 | Section 6 |
| New Mexico CDL Air Brakes testAir brakes | 25 | 20 | 5 | Section 5 |
| New Mexico CDL Doubles and Triples testEndorsement T | 20 | 16 | 4 | Section 7 |
| New Mexico CDL Passenger testEndorsement P | 20 | 16 | 4 | Section 4 |
| New Mexico CDL School Bus testEndorsement S | 20 | 16 | 4 | Section 10 |
| New Mexico CDL Tank Vehicles testEndorsement N | 20 | 16 | 4 | Section 8 |
| New Mexico CDL Hazardous Materials testEndorsement H | 30 | 24 | 6 | Section 9 |
New Mexico Commercial Driver License ManualVersion July 2017 (MVD-11196 Rev. 8/17)checked
From the Version July 2017 (MVD-11196 Rev. 8/17) edition.
On New Mexico's CDL licensing sheet (MVD-11196), Class A and Class B holders may, with the right endorsements, drive vehicles in any lesser class, and Class C holders may drive all Class D vehicles.
Per New Mexico's MVD-11196: the E restriction (automatic transmission only) is removed by passing a full skills test.
Each part of New Mexico's CDL knowledge and skills tests is graded on its own, and a passing score is 80% or higher.
In New Mexico you must pass every CDL knowledge test needed for the class and vehicle type you want, and may take the knowledge tests no more than two times in a 7-day period. No documents of any kind and no cell phones are allowed in the test area.
Under New Mexico's Implied Consent Act (Section 66-8-107 NMSA 1978), anyone driving in the state is deemed to consent to breath or blood tests for alcohol or drugs if arrested for DWI.
Since February 7, 2022, entry-level CDL applicants must finish training from a provider on FMCSA's Training Provider Registry before the skills test (or, for the H endorsement, the knowledge test).
New Mexico's manual: a "wig wag" drops a mechanical arm into your view when system pressure falls below 60 psi; an automatic one rises out of view above 60 psi, while a manual reset type must be put out of view by hand and won't stay there until pressure is above 60 psi.
New Mexico’s MVD says every test part needs 80% to pass but doesn’t publish the number of questions. Our practice tests follow the usual CDL format: General Knowledge 50 questions (40 to pass), Hazmat 30 (24), Air Brakes 25 (20), and Combination, Tank, Doubles/Triples, Passenger and School Bus 20 each (16). New Mexico Commercial Driver License Manual p. 6
The New Mexico Commercial Driver License Manual (AAMVA, version July 2017) with New Mexico’s CDL licensing sheet (MVD-11196): classes, endorsements and restrictions, then inspection, safe driving, cargo, passengers, air brakes, combination vehicles, doubles and triples, tankers, hazardous materials and school buses.
Up to twice in a 7-day period, with no yearly limit. No documents or cell phones are allowed in the test area, and cheating disqualifies you for a year. New Mexico Commercial Driver License Manual p. 6
Class A takes general knowledge, air brakes and combination; Class B general knowledge and air brakes; Class C general knowledge only, and a Class C CDL is valid only with a hazmat or passenger endorsement. You must pass general knowledge before taking any other knowledge test.
No. Each of New Mexico's seven CDL knowledge tests, from general knowledge and air brakes to hazmat, exists in two versions, form A and form B. If you fail one version, the MVD gives you the other version the next time you take that test.
80% on each of the 8 tests, each graded on its own (General Knowledge: 40 of 50). Every test's numbers are in the table on this page. Always confirm the current tests with the New Mexico Taxation and Revenue Department, Motor Vehicle Division. Why 80% in every state
Approved third-party examiners, paid directly; the test (pre-trip, basic control and road test) normally takes two hours. After a failure you wait 7 days, and after a third failure in a year you wait a year from your first test. New Mexico Commercial Driver License Manual p. 6
Proof of U.S. citizenship or lawful permanent residence, your Social Security card, a DOT medical certificate, two proofs of New Mexico residency and a valid New Mexico license. Non-domiciled CDLs are only for holders of H-2A, H-2B or E-2 visas.
No. A valid out-of-state CDL can be exchanged for a New Mexico CDL with the same class and endorsements without written tests; a hazmat endorsement still needs its test, fingerprints and a background check.
No. Only some MVD field offices handle the whole CDL process, and the MVD keeps a list of the CDL field offices. Private MVD offices also work under contract with the state, but they add administrative fees of their own on top of the MVD fees.
Your driver license and CDL learner's permit, with your skills test scores, which the MVD checks electronically, plus the original documents for the CDL. The two proofs of residency must show a physical New Mexico address, never a P.O. box, and bills or statements can be no more than 60 days old.
No. Learner's permits don't move between states: either finish the CDL in the state that issued your permit, or start the New Mexico process again from the written tests.
No. New Mexico has no medical waiver program of its own, so failing the hearing test or the color vision test on the DOT physical rules out a New Mexico CDL. Any other waiver has to come from the FMCSA, the federal agency.
Not if your government employer qualifies you medically. Instead of the medical examiner's certificate, show your government photo ID and the MVD's vehicle certification form (MVD-10414), signed by your employer or supervisor.
Two documents with your name and the same New Mexico physical address: for example a lease or purchase agreement, a county property tax document, a city, county, state, tribal or federal residency letter (E911 address checks included), or a recent utility bill (not a cell phone bill), bank statement or pay stub.
Yes. New Mexico law requires a DWI records check for every driver moving to the state from elsewhere, so drivers transferring a CDL from another state are checked too.
21 for an unrestricted CDL. Drivers from 18 to 20 can get one with the K restriction, which keeps them to driving within New Mexico, but hauling placarded hazmat needs you to be 21 even inside the state. Either way you must already hold a valid Class D license.
Drivers of a licensed recreational vehicle used for recreation; farmers, ranchers and their employees carrying their own produce, equipment or supplies no more than 150 miles from the farm or ranch, and not for hire; volunteer or paid firefighters driving equipped fire trucks; and military personnel driving Defense Department vehicles.
Passenger (P) and School Bus (S). Hazmat (H), Tank (N), Doubles/Triples (T) and the combined Tank and Hazmat (X) endorsements need only a written test. New Mexico Commercial Driver License Manual p. 5
A refusal, an administrative DWI finding or a DWI conviction disqualifies a CDL holder for one year the first time and for life the second time. New Mexico Commercial Driver License Manual p. 6
Apply to TSA online or by phone first, since the fingerprint site can't take the application; then give fingerprints and two IDs at any enrollment site, even one in another state. TSA aims to finish within 30 days and tells you and the MVD the result. Only then can you take the hazmat knowledge test at an MVD office.
Yes, if the MVD can verify your TSA check. You still pass New Mexico's hazmat knowledge test before the endorsement goes on your CDL.
Besides the usual codes, New Mexico uses S for government-plated vehicles only, T for buses only, M for no Class A passenger vehicle, N for no Class A or B passenger vehicle and K for intrastate only. A full skills test removes E (automatic only) and O (no tractor-trailer, when taken in a tractor-trailer).
The school bus knowledge test plus skills tests in two vehicles: a passenger commercial vehicle and a school bus. Without both skills tests, the S endorsement isn't issued.
No. The MVD tracks medical certificates electronically, so the CDL keeps its own expiration date, separate from the date on your medical card.
Not if it expired less than a year ago. After more than a year, and up to five years, you take the knowledge tests again.
Four or eight years, but a CDL with a hazmat endorsement can't be issued for eight. Drivers aged 79 or older renew every year.
You go through most of the process again: pass the knowledge tests, get a commercial learner's permit, and take the skills test in a vehicle like the one you will drive.
Every Class A, B or C license holder writes to the MVD, with the letter postmarked within 30 days of any traffic conviction other than parking. Give your name, license number, the dates of the violation and conviction, the offense, the state, the court and whether you paid a fine.
Not for commercial driving. If you qualify for New Mexico's limited driving privilege during a suspension or revocation, it applies only to a Class D, E or M license. There is no employment-only CDL, so commercial driving waits until the CDL itself is reinstated.
Sometimes, to no less than 10 years. After two DWI convictions you need a completed alcohol or drug rehabilitation program, five straight years without abuse, and five straight years on a valid Class D license with no moving violations or alcohol or drug offenses. A second lifetime disqualification can never be reduced.
Sources: New Mexico MVD: Download Manuals · New Mexico MVD: What tests do I need for the class of CDL? · New Mexico Administrative Code: 18.19.5 NMAC, Driver's License (CDL rules) · New Mexico MVD: Commercial Driver’s Licenses (CDL) · New Mexico MVD: Commercial Resources and Information (FAQ) · New Mexico MVD: CDL Driver Medical Conditions · New Mexico MVD: CDL List of Acceptable Documents (REAL ID) · New Mexico MVD: What is the fee for a commercial driver's license? · New Mexico MVD: Hazardous Material Endorsement · New Mexico MVD: CDL Licensing Information (MVD-11196) · New Mexico MVD: My CDL is expired. Do I need to take the tests again?