(a) A Mexico-domiciled motor carrier committing any of the following violations identified through roadside inspections, or by any other means, may be subjected to an expedited safety audit or compliance review, or may be required to submit a written response demonstrating corrective action:

(1) Using drivers not possessing, or operating without, a valid Licencia Federal de Conductor. An invalid Licencia Federal de Conductor includes one that is falsified, revoked, expired, or missing a required endorsement.

(2) Operating vehicles that have been placed out of service for violations of the Commercial Vehicle Safety Alliance (CVSA) North American Standard Out-of-Service Criteria, without making the required repairs.

(3) Involvement in, due to carrier act or omission, a hazardous materials incident within the United States involving:

(i) A highway route controlled quantity of a Class 7 (radioactive) material as defined in § 173.403 of this title;

(ii) Any quantity of a Class 1, Division 1.1, 1.2, or 1.3 explosive as defined in § 173.50 of this title; or

(iii) Any quantity of a poison inhalation hazard Zone A or B material as defined in § 173.115, § 173.132, or § 173.133 of this title.

(4) Involvement in, due to carrier act or omission, two or more hazardous material incidents occurring within the United States and involving any hazardous material not listed in paragraph (a)(3) of this section and defined in chapter I of this title.

(5) Using a driver who tests positive for controlled substances or alcohol or who refuses to submit to required controlled substances or alcohol tests.

(6) Operating within the United States a motor vehicle that is not insured as required by part 387 of this chapter.

(7) Having a driver or vehicle out-of-service rate of 50 percent or more based upon at least three inspections occurring within a consecutive 90-day period.

(b) Failure to respond to an agency demand for a written response demonstrating corrective action within 30 days will result in the suspension of the carrier's provisional operating authority or provisional Certificate of Registration until the required showing of corrective action is submitted to the FMCSA.

(c) A satisfactory response to a written demand for corrective action does not excuse a carrier from the requirement that it undergo a safety audit or compliance review, as appropriate, during the provisional registration period.