(1) A person may resign as an APS employee in the Department if, and only if:
(a) he or she gives written notice to the Secretary of his or her resignation; and
(b) the notice specifies, in accordance with subsection (2), the day his or her resignation is to take effect.
(2) The day specified in a notice under paragraph (1)(a) must not:
(a) be earlier than 14 days, or such shorter period as the Secretary allows; or
(b) be later than 4 months;
after the day on which the notice is given to the Secretary.
(3) This section is subject to section 30.