AIM 

4/20/23 

TBL 4

−

17 

Filing for Reduced Oceanic Separation when RSP/RCP Required on March 29, 2018 

Dimension of 

Separation 

Separation 

Minima 

RSP Re-

quirement 

RCP Re-

quirement 

PBN Require-

ment 

Flight Plan Entries 

RSP in Item 

18 SUR/ 

RCP in 

Item 

10a 

CDPLC 

in 

Item10a 

PBN in Item 18 

PBN/ 

(also File ’R’ in 

Item 10a) 

PBN in 

Item 18 

NAV/ 

Lateral 

55.5 km 

30 NM 

180 

240 

RNP 2 or 

RNP 4 

RSP180 

P2 

J5, 

and/or 

J6, 

and/or 

J7 

L1 

Perfor-

mance

−

 

based 

Longitudinal 

5 Minutes 

180 

240 

RNAV 10 

(RNP 10) 

RNP 4, or 

RNP 2 

oceanic/ 

remote 

RSP180 

P2 

J5, 

and/or 

J6, 

and/or 

J7 

A1 or L1 

M2 

Perfor-

mance

−

 

based 

Longitudinal 

55.5 km 

30 NM 

180 

240 

RNP 4 or 

RNP 2 

oceanic/ 

remote 

RSP180 

P2 

J5, 

and/or 

J6, 

and/or 

J7 

L1 

M2 

Perfor-

mance

−

 

based 

Longitudinal 

93 km 

50 NM 

180 

240 

RNAV 10 

(RNP 10) or 

RNP 4 

RSP180 

P2 

J5, 

and/or 

J6, 

and/or 

J7 

A1 or L1 

NOTE

−

 

1. 

Filing of RNP 2 alone is not supported in FAA controlled airspace; PBN/L1 (for RNP 4) or PBN/A1 (for RNP 10) must 

be filed to obtain the indicated separation. 

2. 

Use of “RNP2” in NAV/ signifies continental RNP 2 (and means the same as M1). Continental RNP 2 is not adequate 

for reduced oceanic separation. Descriptor M2 indicates RNP 2 global/oceanic RNP 2 capability. 

10.

 Date of Flight (Item 18 DOF/) 

Flights planned more than 23 hours after the time the flight plan is filed, must include the date of flight in DOF/ 

expressed in a six

−

digit format YYMMDD, where YY equals the year (Y), MM equals the month, and DD equals 

the day. 

NOTE

−

 

FAA ATC systems will not accept flight plans more than 23 hours prior to their proposed departure time. FAA Flight 

Service and commercial flight planning services generally accept flight plans earlier and forward to ATC at an appro-

priate time, typically 2 to 4 hours before the flight. 

EXAMPLE

−

 

DOF/171130 

11. 

Reasons for Special Handling (Item 18 STS/) 

(a)

 Indicate the applicable Special Handling in Item 18 STS/ as shown in TBL 4

−

18. 

NOTE

−

 

Priority for a flight is not automatically granted based on filing one of these codes but is based on documented proce-

dures. In some cases, additional information may also be required in remarks; follow all such instructions as well. 

Appendix 4

−

14 

FAA Form 7233

−

4 

−

 International Flight Plan