The commercial learner's permit is the first document on the way to a CDL, and it is not optional: 49 CFR 383.25(d) makes it a precondition to the first CDL and to any upgrade that needs a skills test. It is also the document that decides how soon you can test and how long your passed test segments stay valid. This page covers every condition in 383.25, and the timing rules that come with it.
What the permit lets you do
383.25(a): a CLP counts as a valid CDL for behind-the-wheel training on public roads, but only while all of its conditions are met. Outside training, it does not authorise commercial driving.
The conditions, one by one
- Supervision, (a)(1). The permit holder must at all times be accompanied by a CDL holder with the right class and endorsements for that vehicle. The CDL holder must be physically in the front seat next to the learner, or, in a passenger vehicle, directly behind or in the first row behind the driver, and must have the learner under observation and direct supervision. A supervisor asleep in the berth does not meet this.
- Same-state license, (a)(2). The learner must hold a valid driver's license from the same state that issued the permit.
- Knowledge test, (a)(3). The learner must have passed the general knowledge test for the vehicle type.
- Age, (a)(4). At least 18. Note that interstate commercial driving has a separate age of 21 under the driver qualification rules in Part 391; the permit age is not the working age for interstate carriers.
- No hazmat, (a)(6). A permit holder may not operate a CMV transporting placarded hazardous materials.
Endorsements allowed on a permit
383.25(a)(5) allows only three, each after its own knowledge test:
- P, passenger: no passengers other than federal and state auditors and inspectors, test examiners, other trainees and the supervising CDL holder. The P endorsement must be class-specific.
- S, school bus: the same limit on who may be on board.
- N, tank: empty tank vehicles only, and not a tank that previously held hazardous materials unless purged of residue.
All other endorsements, including H and T, are prohibited on a permit ((a)(5)(iv)).
The 14-day wait
383.25(e): a permit holder is not eligible to take the CDL skills test in the first 14 days after the permit is first issued. The count is from initial issuance. Schools typically schedule the range and road training in those two weeks, and a skills test date cannot be booked for day 10 however far along the student is.
One year, then retest
383.25(c): a permit may be valid for no more than one year from initial issuance without retaking the general and endorsement knowledge tests. A permit issued for less than a year may be renewed, but not past one year from the original date. Some states issue six-month permits with one renewal; the federal ceiling is the same.
Passed segments expire with the permit
This rule sits in the skills test section rather than 383.25, and it is the one that catches people. 383.133(c)(6): the skills test must be passed in order, pre-trip inspection, basic control, then on-road, and a driver who fails a segment cannot continue to the next. Scores for passed segments are valid only during the initial issuance of the CLP. If the permit is renewed, all three segments must be taken again. A student who passes pre-trip and basic control but fails on-road should retest before the permit's first expiry.
Separate document
383.25(b): the permit is a separate document from the CDL or regular license. Under 383.153 it must say prominently that it is a commercial learner's permit and that it is invalid unless accompanied by the underlying license from the same state.
Before you apply
The permit application usually also requires a medical examiner's certificate and a check of your driving record; those are state and Part 391 steps, covered in the DOT physical guide. If you are new to Class A or B, or to the P, S or H endorsements, entry-level driver training rules also apply, covered in the ELDT guide. Testing locations and schools are listed in this directory under CDL testing and CDL training.