S.C. Code Ann. § 57-5-1345: Coordination of departments for toll and usage charges.

(A) In order to administer, collect, and enforce any toll or usage charge, toll or usage charge violation, processing fee, civil penalty, or registration-based enforcement mechanism authorized by this title, the Department of Transportation shall coordinate with the Department of Motor Vehicles to ensure access to current motor vehicle and owner registration data.

(B) The Department of Transportation shall, at a minimum, receive updated toll and usage charge related vehicle data from the Department of Motor Vehicles monthly. The data shall include, but is not limited to, vehicle identifiers, registration status indicators, and any information necessary to support toll or usage charge billing, notice, enforcement actions, or registration renewal blocks authorized by law.

(C) The Department of Transportation and the Department of Motor Vehicles shall enter into a memorandum of understanding governing:

(1) the frequency, format, and method of data exchange;

(2) data security standards and confidentiality requirements;

(3) limitations on use of the data solely for toll or usage charge administration and enforcement purposes; and

(4) procedures to ensure data accuracy, error resolution, and due process protections for registered vehicle owners.

(D) No toll or usage charge enforcement action that relies upon registration suspension, renewal block, or similar Department of Motor Vehicles action may be initiated unless the vehicle data relied upon has been updated in accordance with this section.

(E) Nothing in this section authorizes the disclosure of personal information except as otherwise permitted by state and federal law.