The authorized mileage rate for officers or employees of the several counties who receive mileage from the respective county governments for miles driven in their private motor vehicles shall be at a rate to be determined by levy court or county council.

48 Del. Laws, c. 235, § ?1; 9 Del. C. 1953, § ?9121; 50 Del. Laws, c. 238, § ?1; 55 Del. Laws, c. 85, § ?26H; 57 Del. Laws, c. 370; 60 Del. Laws, c. 11, § ?1; 63 Del. Laws, c. 40, § ?1; 68 Del. Laws, c. 39, § ?1; 69 Del. Laws, c. 184, § ?3;