Airports are plotted in their true geographic
position unless the symbol conflicts with a radio aid
to navigation (navaid) at the same location. In such
cases, the airport symbol will be displaced, but the
relationship between the airport and the navaid will be
retained.

Airports are identified by their designated
name. Generic parts of long airport names (such as
"airport", "field" or "municipal") and the first names of
persons are commonly omitted unless they are needed
to distinguish one airport from another with a similar
name.

The figure above illustrates the coded data that is provided
along with the airport name. The elevation of an airport is
the highest point on the usable portion of the landing areas.
Runway length is the length of the longest active runway
including displaced thresholds and excluding overruns.
Runway length is shown to the nearest 100', using 70 as the
division point; a runway 8070' in length is charted as 81,
while a runway 8069' in length is charted as 80.

Airports with Control Towers (CT), and their related
information, are shown in blue. All other airports,
and their related information, are shown in magenta.

The symbol indicates that runway lights are
on during hours of darkness. A indicates that the pilot
must consult the Airport/Facility Directory (A/FD) to
determine runway lighting limitations, such as: available
on request (by radio call, letter, phone, etc), part-time
lighting or pilot/airport controlled lighting. Lighting
codes refer to runway edge lights. The lighted runway
may not be the longest runway available, and
may not be lighted full length. A detailed description
of airport and air navigation lighting aids available at
each airport can be found in the A/FD. When information
is lacking, the respective character is replaced
by a dash. The symbol indicates the existence of a
rotating or flashing airport beacon operating continuously
sunset to sunrise. The Aeronautical Information
Manual (AIM) thoroughly explains the types and uses
of airport lighting aids.

CONTROLLED AIRSPACE
Controlled airspace consists of those areas
where some or all aircraft may be subject to air traffic
control, such as Class A, Class B, Class C, Class D,
Class E Surface (SFC) and Class E Airspace.
Class A Airspace within the United States
extends from 18,000' up to 60,000' MSL. While visual
charts do not depict Class A, it is important to note its
existence.
Class B Airspace is shown in abbreviated
form on the World Aeronautical Chart (WAC). The
Sectional Aeronautical Chart (Sectional) and Terminal
Area Chart (TAC) show Class B in greater detail.
The MSL ceiling and floor altitudes of each sector
are shown in solid blue figures with the last two digits
omitted: Radials and arcs used to define Class B
are prominently shown on TACs. Detailed rules and
requirements associated with the particular Class B
are shown. The name by which the Class B is identi-
fied is shown as for example.
Class C Airspace is shown in abbreviated
form on WACs. Sectionals and TACs show Class C in
greater detail.
The MSL ceiling and floor altitudes of each
sector are shown in solid magenta figures with the last
two digits eliminated: . The following figures identify
a sector that extends from the surface to the base
of the Class C: . The name by which the Class
C is identified is shown as: . Separate
notes, enclosed in magenta boxes, give the approach
control frequencies to be used by arriving VFR aircraft
to establish two-way radio communication before entering
the Class C (generally within 20 NM):