B. 1. The Commissioner of Public Safety shall be exempt from Sections 501 through 506 of Title 75 of the Oklahoma Statutes insofar as it is necessary to promulgate rules pursuant to the Oklahoma Motor Carrier Safety and Hazardous Materials Transportation Act, to maintain a current incorporation of federal motor carrier safety and hazardous material regulations, or pursuant to Chapter 6 of Title 47 of the Oklahoma Statutes, to maintain a current incorporation of federal commercial driver license regulations, for which the Commissioner has no discretion when the state is mandated to promulgate rules identical to federal rules and regulations.

2. Such rules may be adopted by the Commissioner and shall be deemed promulgated twenty (20) days after notice of adoption is published in “The Oklahoma Register”. Such publication need not set forth the full text of the rule but may incorporate the federal rules and regulations by reference.

3. Such copies of promulgated rules shall be filed with the Secretary as required by Section 251 of Title 75 of the Oklahoma Statutes.

4. For any rules for which the Commissioner has discretion to allow variances, tolerances or modifications from the federal rules and regulations, the Commissioner shall fully comply with Sections 501 through 506 of Title 75 of the Oklahoma Statutes.