(a) The appointment of election judges must be made by written order.
(b) The order of appointment need not be recorded in the minutes of the appointing authority.
(c) An order making an appointment for a single election shall be preserved for the period for preserving the precinct election records. An order making an appointment for a term shall be preserved for the longer of:
(1) the term for which the appointment is made; or
(2) the period for preserving precinct election records in the last election in which an appointee serves under the order.
(d) This section does not apply to an emergency appointment.