ALBERT C. RITCHIE, GOVERNOR. 1081

provide adequate light and air; to prevent the overcrowding of
land; to avoid undue concentration of population; to facili-
tate the adequate provision of transportation, water, sewerage,
schools, parks, and other public requirements. Such regula-
tions shall be made with reasonable consideration, among
other things, to the character of the district and its peculiar
suitability for particular uses, and with a view to conserving
the value of buildings and encouraging the most appropriate
use of land throughout the municipality.

4. METHOD OF PROCEDURE. The Mayor and Council of the
town of Rockville shall provide for the manner in which such
regulations and restrictions and the boundaries of such dis-
tricts shall be determined, established, and enforced, and from
time to time amended, supplemented, or changed. However,
no such regulation, restriction or boundary shall become effect-
ive until after a public hearing in relation thereto, at which
parties in interest and citizens shall have an opportunity to
be heard. At least 15 days' notice of the time and place of
such hearing shall be published in an official paper or a paper
of general circulation in the town of Rockville.

5. CHANGES. Such regulations, restrictions and bound-
aries 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changed, modified or repealed.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 20 per cent, or
more either of the area of the lots included in the proposed
change, or of those immediately adjacent in the rear thereof
extending 100 feet therefrom, or of those directly opposite
thereto extending 100 feet from the street frontage of such
opposite lots, such amendment shall not become effective ex-
cept by the favorable vote of three-fourths of the members of
the Council of the town of Rockville. The provisions of the
previous section relative to public hearings and official notice
shall apply equally to all changes or amendments.

6. ZONING COMMISSION. In order to avail itself of the
powers conferred by this Act, the Mayor and Council of the
town of Rockville shall appoint a commission, to be known
as the Zoning Commission, to recommend the boundaries of
the various original districts and appropriate regulations to
be enforced therein. Such commission shall make a prelimi-
nary report and hold public hearings thereon before sub-
mitting its final report, however, the Mayor and Council of