The Executive Director of the Mississippi Department of Transportation, with the approval of the Mississippi Transportation Commission, may enter into agreements with railroads, the United States government, persons, municipalities, counties, local railroad authorities or regional railroad authorities for carrying out the purposes of this chapter. Agreements entered into between the executive director and railroad corporations pursuant to this chapter may require payment by the railroad corporation of a portion of revenue derived from the improved rail line into the Railroad Revitalization Fund and to users who have paid a portion of the cost of the improved line. Any agreement between the executive director and a railroad corporation shall also include a condition that, as a prerequisite to its receipt of any monies available under this chapter, a railroad corporation agrees not to abandon any section of line on which such monies are to be spent until all of the monies expended on such section out of the Railroad Revitalization Fund have been replaced. The board of supervisors of a county and the governing authority of a municipality may enter into an agreement with the Mississippi Department of Transportation to receive a portion of the payments made by a railroad corporation to the Railroad Revitalization Fund pursuant to this chapter. The amount received by a county or municipality shall not exceed the amount appropriated to the Railroad Revitalization Fund by the county or municipality pursuant to this chapter.