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AIM

10/12/17

3−2−9

Controlled Airspace

5. Aircraft Speed. Unless otherwise autho-

rized or required by ATC, no person may operate an

aircraft at or below 2,500 feet above the surface

within 4 nautical miles of the primary airport of a

Class D airspace area at an indicated airspeed of more

than 200 knots (230 mph).

c. Class D airspace areas are depicted on Sectional

and Terminal charts with blue segmented lines, and

on IFR En Route Lows with a boxed [D].

d. Surface area arrival extensions:

1. Class D surface area arrival extensions for

instrument approach procedures may be Class D or

Class E airspace. As a general rule, if all extensions

are 2 miles or less, they remain part of the Class D

surface area. However, if any one extension is greater

than 2 miles, then all extensions will be Class E

airspace.

2.  Surface area arrival extensions are effective

during the published times of the surface area. For

part–time Class D surface areas that revert to Class E

airspace, the arrival extensions will remain in effect

as Class E airspace. For part–time Class D surface

areas that change to Class G airspace, the arrival

extensions will become Class G at the same time.

e. Separation for VFR Aircraft. No separation

services are provided to VFR aircraft.

3−2−6. Class E Airspace

a. Definition. Class E airspace is controlled

airspace that is designated to serve a variety of

terminal or en route purposes as described in this

paragraph.

b. Operating Rules and Pilot/Equipment

Requirements:

1. Pilot Certification. No specific certifica-

tion required.

2. Equipment. No specific equipment

required by the airspace.

3. Arrival or Through Flight Entry Require-

ments. No specific requirements.

c. Charts. Class E airspace below 14,500 feet

MSL is charted on Sectional, Terminal, and IFR

Enroute Low Altitude charts.

d. Vertical limits. Except where designated at a

lower altitude (see paragraph 3−2−6e, below, for

specifics), Class E airspace in the United States

consists of:

1. The airspace extending upward from 14,500

feet MSL to, but not including, 18,000 feet MSL

overlying the 48 contiguous states, the District of

Columbia and Alaska, including the waters within

nautical 12 miles from the coast of the 48 contiguous

states and Alaska; excluding:

(a) The Alaska peninsula west of longit-

ude 160

00

'00''W.; and

(b)  The airspace below 1,500 feet above the

surface of the earth unless specifically designated

lower (for example, in mountainous terrain higher

than 13,000 feet MSL).

2. The airspace above FL 600 is Class E

airspace.

e. Functions of Class E Airspace. Class E

airspace may be designated for the following

purposes:

1. Surface area designated for an airport

where a control tower is not in operation. Class E

surface areas extend upward from the surface to a

designated altitude, or to the adjacent or overlying

controlled airspace.  The airspace will be configured

to contain all instrument procedures.

(a) To qualify for a Class E surface area, the

airport must have weather observation and reporting

capability, and communications capability must exist

with aircraft down to the runway surface.

(b) A Class E surface area may also be

designated to accommodate part-time operations at a

Class C or Class D airspace location (for example,

those periods when the control tower is not in

operation).

(c) Pilots should refer to the airport page in

the applicable Chart Supplement U.S. for surface area

status information.

2. Extension to a surface area. Class E

airspace may be designated as extensions to Class B,

Class C, Class D, and Class E surface areas. Class E

airspace extensions begin at the surface and extend up

to the overlying controlled airspace. The extensions

provide controlled airspace to contain standard

instrument approach procedures without imposing a

communications requirement on pilots operating

under VFR. Surface area arrival extensions become

part of the surface area and are in effect during the

same times as the surface area.