1002 LAWS OF MARYLAND. [CH. 422

(2) (Changes. ) All such boundaries, regulations and re-
strictions may, from time to time, be amended, supplemented,
changed, modified or repealed. In case, however, of a protest
against such change, signed by the owners of twenty percent
(20%) or more of the area of the lots included in such pro-
posed change, such amendment shall not become effective
except by the favorable vote of two-thirds of all the members
of the legislative body of the political subdivision or the joint
board provided for in Section 16(c) (3) of this sub-title as
the case may be. The provisions of subparagraph (1) of this
Section 16 (e) relative to public hearings and official notice
shall apply equally to all changes or amendments.

(3) (Zoning Commission. ) In order to avail itself of the
powers conferred by this sub-title, the legislative body of the
political subdivision or the said joint board shall appoint a
commission, to be known as the Airport Zoning Commission,
to recommend the boundaries of the various original districts
and appropriate regulations to be enforced therein. Such
Commission shall make a preliminary report arid hold public
hearings in connection therewith before submitting its final
report, and such legislative body or joint board shall not hold
its public hearings or take action until it has received the
final report of such Commission. Where a Board of Zoning
Appeals already exists, it may be appointed as the Zoning
Commission.

(4) (Administration of Zoning Regulations—Administra-
tive Agency. ) The legislative body of any political subdivision
adopting airport zoning regulations under this sub-title may
delegate the duty of administering and enforcing such rules
and regulations to any administrative agency under its juris-
diction, or may create a new administrative agency to perform
such duty, but such administrative agency shall not be or
include any member of the Board of Appeals. The duties of
such administrative agency shall include that of receiving
applications for, and deciding whether or not, all permits
which may be issued under Section 16 (d) (1) should be issued,
but such agency shall not have or exercise any of the powers
delegated to the Board of Appeals.

(5) (Administration of Airport Zoning Regulations—Board
of Appeals. ) Airport zoning regulations adopted under this
sub-title shall provide for a Board of Appeals to have and
exercise the following powers:

(a) To hear and decide appeals in all cases where it is
alleged there is error in any order, requirement, decision or
determination made by the administrative agency in the en-
forcement of this sub-title or of any ordinance or other legis-
lation adopted pursuant thereto;