Colorado runs its CDL skills tests entirely through approved third-party testing schools, and you hold the permit at least 14 calendar days first. Watch the permit rules: since April 2024, a Colorado CLP lasts one year, can't be renewed, and your written test results are good for only one permit, so applying for the wrong class or endorsement means retesting everything.
Denver sits at the I-70/I-25 crossroads and dominates Front Range distribution and rail-to-truck work. Greeley and Weld County add food processing and oil-and-gas hauling, and real mountain experience (chain laws, the I-70 grades) is something employers actually pay for.
Federal checks to make before you spend money
You'll start with your state's licensing office, but a few federal rules can quietly stop your training, testing, or hiring. Check these before you pay a school, sign any paid-training paperwork, or plan around a job start date.
| Check | Who it affects | What to confirm |
|---|---|---|
| Required training (ELDT) | Anyone getting a first Class A or Class B license, upgrading Class B to A, or adding a first HazMat, passenger, or school-bus endorsement. | Make sure your school is on the federal approved-provider list (the Training Provider Registry) for the exact training you need. |
| DOT medical card | Anyone going for a permit or CDL, or a driving job that requires a medical card. | Use an examiner from the federal National Registry, and confirm the result actually reaches your state CDL record. |
| Drug & alcohol record (Clearinghouse) | Drivers with a past testing problem, anyone returning to driving, or anyone worried about a violation on file. | A flagged record can block you from driving until you finish the return-to-duty steps. |
| Non-resident CDL rules | Applicants who don't live in a U.S. state or who are here on temporary immigration status. | Confirm you're eligible with your state's licensing office and FMCSA before you pay for training. |
Colorado CDL steps
| Step | What to do | Verification |
|---|---|---|
| 1 | Confirm your age, ID, where you live, and the basic driver-license requirements. | Colorado Division of Motor Vehicles |
| 2 | Study the current commercial driver manual and identify the class/endorsements you need. | State manual/source |
| 3 | Apply for a commercial learner’s permit and pass required knowledge tests. | State licensing office |
| 4 | Finish the required entry-level training (ELDT) with an approved school, if it applies to you. | Approved-school list |
| 5 | Practice with a licensed CDL holder, then book your road test after any required waiting period. | State testing rules |
| 6 | Pass the pre-trip inspection, the basic control skills, and the road test. | Official road-test process |
DOT medical exam requirements
A CDL or CLP path can stop if the medical exam is missing, expired, filed late, or filed under the wrong driving category. FMCSA says a DOT physical for interstate commercial driving must be performed by a licensed medical examiner listed on the National Registry of Certified Medical Examiners. If the driver is qualified, the examiner provides a Medical Examiner's Certificate, often called a DOT medical card.
The certificate can be valid for up to 24 months, but the examiner can issue it for a shorter period when monitoring is needed. Common examples include blood pressure follow-up, certain chronic conditions, medication review, or other concerns that require earlier recheck. CDL applicants should schedule the exam early enough to resolve documentation questions before permit testing, skills testing, paid training, or orientation.
For 2026 planning, do not assume a paper card alone means the state record is correct. FMCSA's National Registry II integration moved medical-result transmission toward examiner-to-FMCSA-to-state electronic records, but drivers should still keep proof and confirm the state CDL record reflects the correct status.
| Medical step | What to do | Why it matters |
|---|---|---|
| Use a certified examiner | Search or confirm the examiner on FMCSA's National Registry before the appointment. | A regular primary-care physical is not automatically a DOT commercial-driver exam. |
| Bring accurate health information | Bring medication lists, glasses or contacts if used, hearing aids if used, and relevant condition documentation. | Incomplete information can delay certification or produce a shorter certificate. |
| Self-certify correctly | Tell the state licensing agency which commercial driving category applies to you. | CDL holders who operate outside the category they self-certified can risk loss of commercial privileges. |
| Submit or confirm the certificate | Colorado applicants should verify exactly how Colorado Division of Motor Vehicles wants medical certification submitted or confirmed. | States maintain CDL medical status records; electronic transmission can still require follow-up if the record is not updated. |
| Track expiration | Set reminders well before the certificate expires. | An expired medical certificate can lead to downgrade, suspension, or interruption of CDL privileges. |
Training, schools, and jobs in Colorado
Colorado: license and job fit
Denver sits at the I-70/I-25 crossroads and dominates Front Range distribution and rail-to-truck work. Greeley and Weld County add food processing and oil-and-gas hauling, and real mountain experience (chain laws, the I-70 grades) is something employers actually pay for. Get the license rules straight first, then decide whether the training matches the work near your ZIP code.
You can get a CDL at 18 to drive in-state only. You need to be 21 to cross state lines. Age matters because drivers under 21 can be limited to in-state-only work, which cuts your job options. That makes checking local employers even more important before you pay for training.
| Decision | What to check in Colorado |
|---|---|
| License class | Whether the employers you want hire Class A, Class B, passenger, tanker, HazMat, or another endorsement. |
| Where you train | Whether the school or company can actually get you to jobs near Denver, Colorado Springs, Greeley or your own ZIP code. |
| Testing path | How Colorado Division of Motor Vehicles handles the permit, the road test, the medical card, and any state-specific forms or scheduling. |
| First job | Whether the work is local, regional, long-haul, in-state-only, physical delivery, passenger, construction, port, or warehouse freight. |
Costs to nail down before you pay
CDL costs in Colorado swing with the school, the license class, the schedule, financing, and whether you go with company-paid training. Get the all-in price in writing: permit fees, testing fees, the medical exam, retest fees, loan charges, and the refund rules.
If you're weighing paid training, put the repayment you'd owe up against just paying for school yourself. A lower upfront cost can still be expensive if the contract ties you to a job that doesn't fit.
Official sources and verification links
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Colorado Division of Motor Vehicles
Colorado runs its CDL skills tests entirely through approved third-party testing schools, and you hold the permit at least 14 calendar days first. Watch the permit rules: since April 2024, a Colorado CLP lasts one year, can't be renewed, and your written test results are good for only one permit, so applying for the wrong class or endorsement means retesting everything.
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Colorado commercial driver manual/source
Use the current state manual for knowledge-test preparation and state-specific rules.
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FMCSA Entry-Level Driver Training
The federal trucking agency (FMCSA) explains the required entry-level training (ELDT) and the federal list of approved schools.
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FMCSA Training Provider Registry
The official place to search approved training schools and file a complaint.
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FMCSA selecting a training provider
A federal checklist for picking a training school.
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FMCSA DOT medical exam and CMV certification
The federal agency explains the DOT physical, who can do it, and how long your medical card stays good.
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FMCSA CDL medical overview
The federal agency explains the CDL medical card, the driving categories you pick from, and how to send your card to your state.
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FMCSA National Registry II medical certification guidance
Federal guidance on how your medical card gets sent to the state electronically, and what to do if your state is behind on the new system.
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FMCSA Drug and Alcohol Clearinghouse
The official federal drug and alcohol record system. If you're flagged here, you can't drive commercially until you finish the return-to-duty steps, and it can block your CDL or learner's permit.
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FMCSA non-domiciled CDL final rule
A federal rule issued February 13, 2026 and effective March 16, 2026 that changes who can get a CDL or learner's permit without being a U.S. resident.
FAQ
How old do I need to be to get a CDL in Colorado?
You can get a CDL at 18 to drive in-state only. You need to be 21 to cross state lines.
Do I need the entry-level training (ELDT) in Colorado?
Probably, if it's your first Class A or Class B license, you're upgrading Class B to A, or you're adding HazMat, passenger, or school bus for the first time. This federal training (ELDT) is required for those. Confirm where you stand with the federal trucking agency (FMCSA) and your state.
Where do I double-check Colorado CDL rules?
Start with Colorado Division of Motor Vehicles, then use the federal trucking agency (FMCSA) to confirm the training rules and that your school is on the approved-provider list.