(a) The Greene County Commission is hereby authorized to establish by resolution the mileage rate in which the commission shall reimburse employees for travel incurred in performing their official duties.
(b) The mileage rate established by the commission shall not exceed the current rate paid by the federal government for mileage reimbursement.
(c) All payments made to persons employed by the Greene County Commission for mileage in excess of the amount specified in Acts 1973, No. 117, 1973 Regular Session (Acts 1973, p. 151), are hereby ratified, validated, and confirmed.