THEODORE R. MCKELDIN, GOVERNOR 1631

modification, or amendment by the board of aldermen shall
be deemed approval unless a longer period be granted by
the board of aldermen. Deviations from, modifications of,
or amendments to the master plan may be recommended to
the board of aldermen by the planning and zoning com-
mission by the affirmative vote of not less than a majority
of the members of the commission. Any such deviation,
modification, or amendment recommended by the commis-
sion must be approved by the board of aldermen before
becoming effective. Whenever the board of aldermen or
the commission is considering any deviation from, modi-
fication of, or amendment to the master plan it shall hold
a public hearing thereon before reaching a final decision.

SUBDIVISION CONTROL

183. The planning and zoning commission shall have
authority over and control of all subdivision of land with-
in the city and one mile beyond. The commission may
adopt regulations governing the subdivision of land pro-
viding for the harmonious development of the city; the
coordination of all public ways within the subdivided
land with other existing or planned streets or for con-
formance with the master plan or official map; adequate
open spaces and spaces for traffic, utilities, recreation,
light, and air; the avoidance of congestion of population.
Such regulations may include requirements as to the ex-
tent to which and the manner in which public ways shall
be graded and improved and water, sewer, and other mains,
piping, connections, and other facilities shall be installed
as a condition precedent to the approval of a subdivision.
All regulations regarding the subdivision of land and any
amendments thereto must be approved by the board of
aldermen before taking effect.

ZONING

184. Upon the recommendation of the planning and
zoning commission, the board of aldermen may by ordi-
nance regulate the location, height, bulk, and size of
buildings and other structures, the size of yards, courts,
and other open spaces, and the uses of buildings, struc-
tures, and land for trade, industry, business, residence, or
other purposes. The board of aldermen, upon the recom-
mendation of the commission, may divide the city and
one mile beyond into districts of such number, shape, and
area as the board of aldermen deems necessary. All zon-
ing regulations shall be uniform throughout each district
but the regulations in one district may differ from those