AIM 

4/20/23 

 

Include CPDLC codes in Item 10a only if the flight is capable of en route/oceanic CPDLC, the 

codes are not required for DCL. 

 

Include Z in Item 10a to indicate there is information provided in Item 18 DAT/. 

 

Include the clearance delivery methods of which the flight is capable, and order of preference in 

Item 18 DAT/. (See AIM 5

−

2

−

2) 

○ 

VOICE 

−

 deliver clearance via Voice 

○ 

PDC 

−

 deliver clearance via PDC 

○ 

FANS 

−

 deliver clearance via FANS 1/A 

○ 

FANSP 

−

 deliver clearance via FANS 1/A+ 

EXAMPLE

−

 

DAT/1FANS2PDC 

DAT/1FANSP2VOICE 

8. 

Operating in Reduced Vertical Separation Minima (RVSM) Airspace (Item 10a). When planning to fly in 

RVSM airspace (FL 290 up to and including FL 410) then file as indicated below. 

(a)

 If capable and approved for RVSM operations, per AIM 4

−

6

−

1, Applicability and RVSM Mandate 

(Date/Time and Area), file a W in Item 10a. Include the aircraft registration mark in Item 18 REG/, which is used 

to post

−

operationally monitor the safety of RVSM operations. 

 

Do not file a “W” in Item 10a if the aircraft is capable of RVSM operations, but is not approved to 

operate in RVSM airspace. 

 

If RVSM capability is lost after the flight plan is filed, request that ATC remove the ’W’ from Item 

10a. 

(b)

 When requesting to operate non

−

RVSM in RVSM airspace, using one of the exceptions identified in 

AIM 4

−

6

−

10, do not include a “W” in Item 10a. Include STS/NONRVSM in Item 18. STS/NONRVSM is used 

only as part of a request to operate non

−

RVSM in RVSM airspace. 

9. 

Eligibility for Reduced Oceanic Separation. Indicate eligibility for the listed reduced separation minima 

as indicated in the tables below. Full Operational Requirements for these services are found in the U.S. 

Aeronautical Information Publication (AIP) ENR 7, Oceanic Operations, available at 

http://www.faa.gov/air_traffic/publications/atpubs/aip_html/index.html. 

TBL 4

−

14 

Filing for Gulf of Mexico CTA 

Dimension 

of Separa-

tion 

Separation 

Minima 

ADS

−

C Surveillance 

Requirements 

Comm. Re-

quirement 

PBN Re-

quirement 

Flight Plan Entries 

ADS

−

C in 

Item 10b 

CPDLC in 

Item 10a 

PBN in Item 18 

PBN/ 

(also File ’R’ in 

Item 10a) 

PBN in 

Item 18 

NAV/ 

Voice comm

−

 

HF or VHF as 

Lateral 

50 NM 

N/A 

(ADS

−

C not 

required) 

required to 
maintain con-
tact over the 

RNP10 

or 

RNP4 

N/A 

N/A 

A1 or L1 

N/A 

entire route to 
be flown. 

NOTE

−

 

If not RNAV10/RNP10 capable and planning to operate in the Gulf of Mexico CTA, then put the notation NONRNP10 

in Item 18 RMK/, preferably first. 

Appendix 4

−

12 

FAA Form 7233

−

4 

−

 International Flight Plan