49 CFR § 380.609
General entry-level driver training requirements
November 18, 2020
(a) An individual who applies, for the first time, for a Class A or Class B CDL, or who upgrades to a Class A or B CDL, must complete driver training from a provider listed on the Training Provider Registry (TPR), as set forth in subpart G.
(b) An individual seeking to obtain a passenger (P), school bus (S), or hazardous materials (H) endorsement for the first time, must complete the training related to that endorsement from a training provider listed on the TPR, as set forth in subpart G.