Do I need a CDL checker
Enter your truck's and trailer's weight ratings and what you haul. The checker returns the CDL class you need, or none, under the federal rules.
Updated October 2026 · Free, no signup
Start from a common setup
CDL check
- CDL needed
- Class B
- Combination rating
- 66,000 lb
- Endorsements
- None from these answers
- DOT drug testing
- Yes (Part 382)
Single vehicle rated 66,000 lb (26,001+).
Federal rules, 49 CFR 383.91 and 383.93. States can add rules or exemptions: check with your state DMV.
Class B truck. Our dispatchers book CDL freight for owner-operators from 4% to 7% of gross, and you confirm every load before it's booked.
See load offers for my truckHow the checker decides
The checker follows the federal CDL groups in 49 CFR 383.91, using the weight ratings you enter. It checks in this order:
- Class A: the combination is rated 26,001 lb or more, and the towed trailer is rated over 10,000 lb.
- Class B: the single truck is rated 26,001 lb or more (it may tow a trailer rated 10,000 lb or less).
- Class C: under both weight lines, but the vehicle hauls placarded hazardous materials or is built to carry 16 or more people including the driver.
- No CDL: none of the above.
Endorsements are listed on top of the class: H for placarded hazmat, N for tank vehicles hauling liquid or gas in bulk, P for 16+ passengers. A driver with both H and N gets an X endorsement.
Source: 49 CFR 383.91 and 383.93 (eCFR) · checked 2026-10
Combination rating = truck GVWR + trailer GVWR. If the actual combined weight is higher than the rating, the rules use the higher number.
Worked examples
| EXAMPLE setup | Truck GVWR | Trailer GVWR | Result |
|---|---|---|---|
| 26 ft box truck | 26,000 lb | none | No CDL |
| Hotshot, 1-ton dually + 40 ft gooseneck | 14,000 lb | 16,000 lb | Class A (30,000 lb, trailer over 10,000) |
| Hotshot built under the line | 11,500 lb | 14,000 lb | No CDL (25,500 lb) |
| Tri-axle dump truck | 66,000 lb | none | Class B |
| Tractor + 53 ft dry van | 52,000 lb | 68,000 lb | Class A |
| 19,500 lb truck, placarded hazmat | 19,500 lb | none | Class C + H |
What a "no CDL" result does and doesn't mean
A no-CDL result means the federal CDL rules don't apply to that setup. It doesn't mean no rules apply: a for-hire truck over 10,001 lb GVWR in interstate commerce still needs a USDOT number, a medical card, hours-of-service compliance and inspections. And it doesn't cover drug testing: DOT drug and alcohol testing applies only to CDL drivers.
A CDL result has a second consequence. The driver and the company that employs them, including an owner-operator employing themselves, must run DOT drug and alcohol testing under Part 382: a pre-employment test, a random pool, and Clearinghouse queries.
State rules and exemptions
States issue CDLs and can set their own rules on top of the federal floor, and some exemptions (farm vehicles, firefighting, military) are handled state by state. Treat this result as the federal answer, then confirm with your state DMV before you buy a truck or take a job.
Why it matters for the box truck you buy
We dispatch 26 ft box trucks, and only 26 ft. Most of them are rated at or just under 26,000 lb GVWR so drivers don't need a CDL. If you're shopping, read the sticker: a 26 ft box rated over 26,000 lb needs a Class B CDL and puts you in the DOT testing program.
Questions about this calculator
Do you need a CDL to drive a box truck?
Not if the truck is rated at 26,000 lb GVWR or less, isn't towing a trailer rated over 10,000 lb, and isn't hauling placarded hazmat. Many 26 ft box trucks are rated right at 25,999 or 26,000 lb for that reason. Above 26,000 lb GVWR, it's a Class B CDL. Check the door sticker, not the box length.
Do you need a CDL to drive a dump truck?
Most tandem and tri-axle dump trucks are rated well over 26,000 lb GVWR, so they need a Class B CDL, or Class A if they pull a trailer rated over 10,000 lb. Smaller single-axle dump trucks can sit under the line. The GVWR on the door sticker decides it.
Do I need a CDL for a hotshot?
It depends on the combination rating. If the pickup's GVWR plus the trailer's GVWR reaches 26,001 lb or more and the trailer is rated over 10,000 lb, it's a Class A CDL. Many hotshot setups are built to stay just under that line; others are over it.
Does the actual weight matter, or just the rating?
Both can. Federal rules use the weight rating or the actual weight, whichever is greater. A truck rated under 26,001 lb but loaded over it can still trigger CDL requirements, besides being overweight. Never load past the rating.
Do CDL drivers have to be drug tested?
Yes. Drivers who need a CDL, and their employers, are covered by DOT drug and alcohol testing under 49 CFR Part 382, including random tests. Non-CDL drivers aren't in the DOT program.
Numbers done. Want someone to find loads that beat them?
No setup fee. No contract. No haul, no pay.