49 CFR § 391.63 - Multiple-employer drivers.
(a) If a motor carrier employs a person as a multiple-employer driver (as defined in § 390.5 of this subchapter), the motor carrier shall comply with all requirements of this part, except that the motor carrier need not -
(3) Perform the annual driving record inquiry required by § 391.25(a);
(b) Before a motor carrier permits a multiple-employer driver to drive a commercial motor vehicle, the motor carrier must obtain his/her name, his/her social security number, and the identification number, type and issuing State of his/her commercial motor vehicle operator's license. The motor carrier must maintain this information for three years after employment of the multiple-employer driver ceases.