All airport zoning regulations adopted under this Act, except those adopted by the Department under Section 17, shall provide for the administration and enforcement of such regulations by an administrative agency which may be an agency created by such regulations or any board or governing body or other existing agency of any political subdivision adopting the regulations or of one of the political subdivisions which participated in the creation of the joint airport zoning board adopting the regulations, if satisfactory to that political subdivision; but in no case shall such administrative agency be or include any member of the Board of Appeals. The duties of any administrative agency designated pursuant to this Act shall include that of hearing and deciding all permits under Section 23 but such agency shall not have or exercise any of the powers herein granted to the Board of Appeals.
     When the Department adopts airport zoning regulations under Section 17, it shall administer and enforce such regulations, and shall have and shall exercise, to such extent as may be practicable, under rules, rulings, regulations, orders and decisions issued by it in connection therewith, such powers as are granted to and may be exercised by any Board of Appeals which shall be established under any airport zoning regulations adopted by any political subdivision, pursuant to Sections 24, 25 and 27 of this Act.