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3/21/24 

AIM 

designation and letters “APCH” followed by a dash (

), the departure end runway designation and the letters 

“DEP”. The arrangement of the runway designations and protected areas legend on the sign reflects the 

orientation of the runway as viewed from the holding position. Holding position markings in accordance with 

paragraph 2

3

5, Holding Position Markings, are co

located on the taxiway pavement in line with the sign. 

Examples of these signs are shown in FIG 2

3

27

FIG 2

3

28 

Holding Position Sign for ILS Critical Area 

FIG 2

3

29 

Sign Prohibiting Aircraft Entry into an Area 

3.  ILS Critical Area Holding Position Sign. 

At some airports, when the instrument landing system is 

being used, it is necessary to hold an aircraft on a taxiway at a location other than the holding position described 

in Paragraph 2

3

5, Holding Position Markings. In these situations, the holding position sign for these 

operations will have the inscription “ILS” and be located adjacent to the holding position marking on the taxiway 

described in paragraph 2

3

5. An example of this sign is shown in FIG 2

3

28. 

4.  No Entry Sign. 

This sign, shown in FIG 2

3

29, prohibits an aircraft from entering an area. Typically, 

this sign would be located on a taxiway intended to be used in only one direction or at the intersection of vehicle 

roadways with runways, taxiways, or aprons where the roadway may be mistaken as a taxiway or other aircraft 

movement surface. 

NOTE

 

Holding position signs provide the pilot with a visual cue as to the location of the holding position marking. 

REFERENCE

 

AIM, Para 2

3

5, Holding Position Markings. 

Airport Marking Aids and Signs 

2

3

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