ALBERT C. RITCHIE, GOVERNOR. 853

for the zoning of its portion of the said District according to the
bulk and location of buildings and other structures (including
percentage of lot occupancy, set-back. building lines, and area
of yards, courts and other open spaces), then such District
Council may, in the interest of the promotion of the health,
morals, safety or welfare of that portion of the District, regu-
late the bulk and location of buildings and other structures
thereafter erected or altered, the percentage of lot occupancy,
set-back building lines and the area of yards, courts and other
open spaces and for said purposes may divide the said portion
of the District into districts of such number, shape and area
as may be deemed best suited to carry out the purposes of this
section. Any such regulation imposing a less percentage of lot
occupancy, wider or larger courts, deeper yards or other more
strict limitations than those provided by state, county, munici-
pal or other local regulation shall within the area for which it
is imposed, prevail over the said limitations provided by such
state, county, municipal or other local regulation.

SEC. 23. And be it further enacted., That the zoning of the
district may be based upon any combination of two or more of
the purposes described in Sections 20, 21 and 22 of this Act.
The respective District Councils may, from time to time, amend
or change the number, shape, area or regulation of or within any
district or districts; but no such amendment or change shall
become effective unless the regulation proposing such amend-
ment or change shall be first submitted to the Commission for
approval, disapproval or suggestions, and the Commission shall
have been allowed a reasonable time, not less than thirty days,
for consideration and report. Similarly, in the original zoning
regulations enacted by the District Councils, there shall be no
change in or departure from the plan submitted by the Commis-
sion until and unless such change or departure shall first be
submitted to the Commission for its approval, disapproval or
suggestions, and the Commission shall have been allowed a
reasonable time, not less than thirty days, for consideration
and report. Before any regulation or regulations authorized
by this section and sections 20, 21 and 22 of this Act may be
passed, the District Council shall hold a public hearing: thereon
and shall give thirty days notice of the time and place thereof
in two newspapers of general circulation respectively in the
county in which the property is located, and during said thirty
days the text or copy of the text of the regulations, together
with the map or maps forming part of or referred to in the