The Department shall be permitted to use a Toll Facility without payment of tolls in order to fulfill the Department's duties and responsibilities pursuant to the contract governing such Toll Facility and as provided in each contract governing that particular Toll Facility. With the prior written approval of the Department, the Toll Facility Operator may temporarily exempt Users of a Toll Facility or suspend tolls during a designated start-up period or during other promotional campaigns.
37 Miss. Code. R. § 1-8101-00002-310