The Department of Transportation shall develop, operate and maintain a full cost accounting system that accurately and separately accounts for all direct, indirect and administrative costs incurred by each of the following units of the department:
(1) Central services.
(2) Driver and motor vehicle services.
(3) Highways.
(4) Motor carriers.
(5) Rail.
(6) Transit.
(7) Transportation development.
(8) Transportation safety. [1999 c.936 §2; 1999 c.936 §5; 2005 c.612 §2; 2007 c.768 §65]