(a) Notwithstanding any other provision of law to the contrary, all motor carriers operating on the public roads of this state shall be subject to the requirements of this part and shall be deemed to have given consent to regulatory compliance inspections.
(b) Unless expressly prohibited by federal law, the commissioner is vested with power to regulate the business of any person engaged in the transportation as a motor carrier of persons or property, either or both, for hire on any public highway of this state.
(c) The commissioner is authorized to employ and designate a person or persons as necessary to implement and carry out the functions contained in this part.
(d) All motor carriers shall:
(1) Obtain a certificate as required by this part;
(2) Maintain liability insurance as provided in the rules and regulations of the department;
(3) Act in compliance with Georgia's workers' compensation laws as provided in Chapter 9 of Title 34; and
(4) Be a United States citizen, or if not a citizen, present federal documentation verified by the United States Department of Homeland Security to be valid documentary evidence of lawful presence in the United States under federal immigration law.