The board of social services of every county, with the approval of the board of county commissioners, shall determine the salary of the director in accordance with the classification plan of the North Carolina Human Resources Commission, and such salary shall be paid by the county from the federal, State and county funds available for this purpose. (1917, c. 170, s. 1; 1919, c. 46, ss. 3, 4; C.S., s. 5016; 1921, c. 128; 1929, c. 291, s. 1; 1931, c. 423; 1937, c. 319, s. 5; 1941, c. 270, s. 4; 1957, c. 100, s. 1; 1961, c. 186; 1969, c. 546, s. 1; 1981, c. 275, s. 1; 2013-382, s. 9.1(c).)