HERBERT R. O'CONOR, GOVERNOR. 1755

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 facilities
shall be installed and trees shall be planted or conserved as a
condition precedent to the approval of a plat. The regulations
or practice of the Commission may provide for the tentative
approval of a plat previous to such improvements and instal-
lations; 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 construction and installa-
tion of such improvements and installations at a time and
according to specifications fixed by or in accordance with the
regulations of the Commission. The Commission 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 con-
servation of such resources at a time and according to specifi-
cations fixed by or in accordance with the regulations of the
Commission. For such purpose any court of competent juris-
diction 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 subdivision 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.

J. The Commission shall approve or disapprove a subdivi-
sion plat within thirty days after the submission thereof; other-
wise such plat shall be deemed to have been approved and a cer-
tificate to that effect shall be issued by the Commission upon
demand; provided, however, that the applicant for the Com-
mission's approval may waive this requirement and consent to
the extension of such period. The ground of disapproval of
any plat shall be stated upon the records of the Commission.
Any plat submitted to the Commission shall contain the name
and address of a person to whom notice of hearing may be sent;
and no plat shall be acted upon by the Commission without
affording a hearing thereon, notice of the time and place of
which shall be sent by mail to said address not less than five
days before the date fixed therefor; provided, however, that
in his application applicant may waive such hearing and notice,
and the approval of any plat exactly as submitted by the ap-