A motor carrier shall only use equipment for vehicles that is produced and constructed by a manufacturer of such equipment that regularly produces such equipment of guaranteed quality. The department may approve the use of non-guaranteed equipment only if the motor carrier submits a written request for use of such equipment accompanied by a verified statement from a reputable testing laboratory regularly engaged in the testing of the same equipment to certify that the equipment is appropriate for the intended purpose. The motor carrier shall bear all costs of testing and certification.
N.M. Admin. Code § 18.3.4.14