(a) It shall be the duty of the several sheriffs, their deputies, and the constables to serve any and all lawful orders and subpoenas of the board. The board may also appoint any other person to serve any decision, order, or subpoena of the board, which person's duty it shall be to execute the same.

(b) All orders and processes of the board shall be signed and attested by the division director in the name of the board with its seal attached; and any notice or legal process necessary to be served upon the board may be served upon the division director.