1870 LAWS OF MARYLAND. [CH. 761

Such regulations may include provisions as to the extent
and manner in which roads shall be graded and improved;
curbs, gutters, and sidewalks shall be built; water, sewer,
and other utility mains, piping, connections, and other facili-
ties shall be installed; and trees shall be planted or conserved
as a condition precedent to the approval of a plat. The regu-
lations or practice of the Commission may provide for the
tentative approval of a plat previous to such improvements
and installations; but any such tentative approval shall not
be entered on the plat or entitle the plat to filing or record.
In lieu of the completion of such improvements prior to the
approval of the plat, the Commission may accept a bond
with surety to secure to the Commission the actual construc-
tion and installation of such improvements and installations
at a time and according to specifications fixed by or in ac-
cordance with the regulations of the Commission. The Com-
mission is hereby granted the power to enforce such bond by
all appropriate legal and equitable remedies.

The Commission may also institute injunction, mandamus,
or other appropriate action or proceeding to compel the
actual construction and installation of such improvements
and conservation of such resources at a time and according
to specifications fixed by or in accordance with the regula-
tions of the Commission. For such purpose any court of
competent jurisdiction is hereby granted jurisdiction to issue
restraining orders and temporary or permanent injunctions
or mandamus or other appropriate forms of remedy or relief.

Before adoption of its sub-division regulations or any sub-
stantial amendment thereof, a public hearing thereon shall
be held by the Commission, thirty days' notice of the time
and place of which shall be given by one publication in one
or more newspapers of general circulation in the District.

In the event that the regulations or amendment are appli-
cable throughout the District, at least one hearing shall be
held within the portion of the District in each county re-
spectively; and thirty days' notice of the time and place of
said hearings shall be published in one or more newspapers
of general circulation within the District. If the regulations
or amendment are applicable only within that portion of the
District within one county, the hearings shall be held within
that portion; and the said notice shall be published in one
or more newspapers of general circulation therein.

The sub-division regulations heretofore adopted by the
Commission and now in effect within the respective portions
of the District in Montgomery and Prince George's Counties
shall be deemed to have been adopted in accordance with the
foregoing provisions; and the said regulations shall apply re-