184 ARTICLE 1A

conduits and wires to such obstruction markers and/or lights, whenever
requested so to do by such county, municipality or other public authority,
and when in the judgment of the Commission the installation and main-
tenance of such obstruction markers and/or lights is necessary for the
purpose of rendering aerial navigation to and from such Airport or Air-
ports safe. Before exercising the authority hereby conferred upon it, the
Commission shall require the county, municipality, or other public au-
thority owning, operating or controlling the public Airport or Landing
Field immediately; concerned, to assume and pay all costs, charges and
expenses which may be incurred in the installation and maintenance of
such obstruction markers and/or lights, and all such rights acquired by
the Commission, whether by agreement, purchase or condemnation, shall
be assigned,, transferred and conveyed to the county, municipality or other
public authority so immediately concerned.
1937, ch 383, sec 58.

65. Certain words in this sub-title are defined for the purposes of this
sub-title as follows, unless the contrary clearly appears from the context:

(a) Airport and Landing Field. These terms apply to those Airports
and Landing Fields described and included within the purview of Sections
1 to 5T of this Article.

(b) Height of buildings and structures. The height 6f a building or
structure for the purposes of this sub-title is the vertical distance measured
from the ground or surface level of the Airport on the side adjacent to
said building or structure to the level of the highest point of the building
or structure.

(c) Buildings and structures Any edifice, structure or construction
of any kind, character or description, erected, located, or proposed to be
erected or located, within the area described in Section 59 as the Safety
Zone, including any edifice, structure or construction within said Safety
Zone erected, constructed or located on or over land or water.

(d) The established perimeter of an Airport or Landing Field for
the purpose of computing all distances and elevations as contemplated
in this sub-title shall be the metes, bounds and elevations along the respec-
tive sides thereof as determined by the county, municipality or other pub-
lic authority owning, controlling or operating such Airport or Landing
Field. Such determination and definition shall be evidenced by a plat
showing such metes, bounds and elevations to be filed with the Commission
and kept among the public records of the Commission as an official docu-
ment. Provided, however, that the established perimeter of the Baltimore
Municipal Airport, anything to the contrary herein notwithstanding, shall
be the line outlined in red on the four plats which are attached hereto
and made a part hereof, which said four plats, upon the passage of this
Act, as evidence of the authenticity of the same, shall be signed by the
Speaker of the House of Delegates and the President of the State Senate
of the General Assembly of Maryland, and upon approval of the Act shall
be signed by the Governor of the State of Maryland, who shall transmit
one of the plats to the State, Aviation Commission and one of the plats
to the Mayor and City Council of Baltimore and one of the plats to the
Department of Legislative Reference.