(a) This section shall apply to Baldwin County in the unincorporated areas of the county.
(b) In addition to the authority granted pursuant to Sections 45-2-243.50 to 45-2-243.60, inclusive, in any subdivision recorded with a plat prior to 1990, the county commission may control, manage, supervise, regulate, maintain, and improve any type of public improvement provided in Sections 45-2-243.50 to 45-2-243.60, inclusive, except that the county commission may assess against the property specially served, benefited, or increased in value all costs of the improvement including labor, equipment usage, and any direct and indirect costs as determined by the commission upon the written petition approval of 85 percent of the property owners. In addition, any assessment made by this section may be paid in equal installments over a five-year period. In all other respects, the procedures for the assessment and collection of improvement assessments pursuant to this section shall be in accordance with Sections 45-2-243.50 to 45-2-243.60, inclusive.