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AIM 

6/17/21 

2. 

A special program has been established and 

vectoring service has been advertised. 

3. 

In the controller’s judgment the vector is 

necessary for air safety. 

e. 

Radar navigation assistance (vectors) and other 

radar derived information may be provided in 
response to pilot requests. Many factors, such as 
limitations of radar, volume of traffic, communica-
tions frequency, congestion, and controller workload 
could prevent the controller from providing it. 
Controllers have complete discretion for determining 
if they are able to provide the service in a particular 
case. Their decision not to provide the service in a 
particular case is not subject to question. 

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18.  Terminal Radar Services for VFR 

Aircraft 

a.  Basic Radar Service: 

1. 

In addition to the use of radar for the control 

of IFR aircraft, all commissioned radar facilities 
provide the following basic radar services for VFR 
aircraft: 

(a) 

Safety alerts. 

(b) 

Traffic advisories. 

(c) 

Limited radar vectoring (on a workload 

permitting basis). 

(d) 

Sequencing at locations where proce-

dures have been established for this purpose and/or 
when covered by a Letter of Agreement. 

NOTE

 

When the stage services were developed, two basic radar 
services (traffic advisories and limited vectoring) were 
identified as “Stage I.” This definition became unneces-
sary and the term “Stage I” was eliminated from use. The 
term “Stage II” has been eliminated in conjunction with 
the airspace reclassification, and sequencing services to 
locations with local procedures and/or letters of agreement 
to provide this service have been included in basic services 
to VFR aircraft. These basic services will still be provided 
by all terminal radar facilities whether they include 
Class B, Class C, Class D or Class E airspace. “Stage III” 
services have been replaced with “Class B” and “TRSA” 
service where applicable. 

2. 

Vectoring service may be provided when 

requested by the pilot or with pilot concurrence when 
suggested by ATC. 

3. 

Pilots of arriving aircraft should contact 

approach control on the publicized frequency and 
give their position, altitude, aircraft call sign, type 
aircraft, radar beacon code (if transponder equipped), 
destination, and request traffic information. 

4. 

Approach control will issue wind and 

runway, except when the pilot states “have numbers” 
or this information is contained in the ATIS broadcast 
and the pilot states that the current ATIS information 
has been received. Traffic information is provided on 
a workload permitting basis. Approach control will 
specify the time or place at which the pilot is to 
contact the tower on local control frequency for 
further landing information. Radar service is 
automatically terminated and the aircraft need not be 
advised of termination when an arriving VFR aircraft 
receiving radar services to a tower

controlled airport 

where basic radar service is provided has landed, or 
to all other airports, is instructed to change to tower 
or advisory frequency.  (See FAA Order JO 7110.65, 
Air Traffic Control, Paragraph 5

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13, Radar 

Service Termination.) 

5. 

Sequencing for VFR aircraft is available at 

certain terminal locations (see locations listed in the 
Chart Supplement U.S.). The purpose of the service 
is to adjust the flow of arriving VFR and IFR aircraft 
into the traffic pattern in a safe and orderly manner 
and to provide radar traffic information to departing 
VFR aircraft. Pilot participation is urged but is not 
mandatory. Traffic information is provided on a 
workload permitting basis. Standard radar separation 
between VFR or between VFR and IFR aircraft is not 
provided. 

(a) 

Pilots of arriving VFR aircraft should 

initiate radio contact on the publicized frequency 
with approach control when approximately 25 miles 
from the airport at which sequencing services are 
being provided. On initial contact by VFR aircraft, 
approach control will assume that sequencing service 
is requested. After radar contact is established, the 
pilot may use pilot navigation to enter the traffic 
pattern or, depending on traffic conditions, approach 
control may provide the pilot with routings or vectors 
necessary for proper sequencing with other partici-
pating VFR and IFR traffic en route to the airport. 
When a flight is positioned behind a preceding 
aircraft and the pilot reports having that aircraft in 
sight, the pilot will be instructed to follow the 
preceding aircraft. THE ATC INSTRUCTION TO 
FOLLOW THE PRECEDING AIRCRAFT DOES 

Services Available to Pilots 

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