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6/17/21 

AIM 

the published lateral path. Aircraft may be vectored 
off of an ODP, or issued an altitude lower than a 
published altitude on an ODP, at which time the ODP 
is canceled. In these cases, ATC assumes responsibil-
ity for terrain and obstacle clearance. In all cases, the 
minimum 200 FPNM climb gradient is assumed. 

4. 

Aircraft instructed to resume a SID procedure 

such as a DP or SID which contains speed and/or 
altitude restrictions, must be: 

(a) 

Issued/reissued all applicable restrictions, 

or 

(b) 

Advised to “Climb via SID” or resume 

published speed. 

EXAMPLE

 

“Resume the Solar One departure, Climb via SID.” 
“Proceed direct CIROS, resume the Solar One departure, 
Climb via SID.” 

5. 

A clearance for a SID which does not contain 

published crossing restrictions, and/or is a SID with 
a Radar Vector segment or a Radar Vector SID, will 
be issued using the phraseology “Maintain (

alti-

tude).” 

6. 

A clearance for a SID which contains 

published altitude restrictions may be issued using 
the phraseology “climb via.” Climb via is an 
abbreviated clearance that requires compliance with 
the procedure lateral path, associated speed and 
altitude restrictions along the cleared route or 
procedure. Clearance to “climb via” authorizes the 
pilot to: 

(a) 

When used in the IFR departure clearance, 

in a PDC, DCL or when cleared to a waypoint 
depicted on a SID, to join the procedure after 
departure or to resume the procedure. 

(b) 

When vertical navigation is interrupted 

and an altitude is assigned to maintain which is not 
contained on the published procedure, to climb from 
that previously-assigned altitude at pilot’s discretion 
to the altitude depicted for the next waypoint. 

(c) 

Once established on the depicted depar-

ture, to navigate laterally and climb to meet all 
published or assigned altitude and speed restrictions. 

NOTE

 

1. 

When otherwise cleared along a route or procedure that 

contains published speed restrictions, the pilot must com-
ply with those speed restrictions independent of a climb via 
clearance. 

2. 

ATC anticipates pilots will begin adjusting speed the 

minimum distance necessary prior to a published speed re-
striction so as to cross the waypoint/fix at the published 
speed. Once at the published speed ATC expects pilots will 
maintain the published speed until additional adjustment 
is required to comply with further published or ATC as-
signed speed restrictions or as required to ensure 
compliance with 14 CFR Section 91.117. 

3. 

If ATC interrupts lateral/vertical navigation while an 

aircraft is flying a SID, ATC must ensure obstacle clear-
ance. When issuing a “climb via” clearance to join or 
resume a procedure ATC must ensure obstacle clearance 
until the aircraft is established on the lateral and vertical 
path of the SID. 

4. 

ATC will assign an altitude to cross if no altitude is de-

picted at a waypoint/fix or when otherwise necessary/ 
required, for an aircraft on a direct route to a waypoint/fix 
where the SID will be joined or resumed. 

5. 

SIDs will have a “top altitude;” the “top altitude” is the 

charted “maintain” altitude contained in the procedure 
description or assigned by ATC. 

REFERENCE

 

FAA Order JO 7110.65, Paragraph 5-6-2, Methods 
PCG, Climb Via, Top Altitude 

EXAMPLE

 

1. 

Lateral route clearance: 

“Cleared Loop Six departure.” 

NOTE

 

The aircraft must comply with the SID lateral path, and any 
published speed restrictions. 

2. 

Routing with assigned altitude: 

“Cleared Loop Six departure, climb and maintain 

four thousand.” 

NOTE

 

The aircraft must comply with the SID lateral path, and any 
published speed restriction while climbing unrestricted to 
four thousand. 

3. 

(A pilot filed a flight plan to the Johnston Airport using 

the Scott One departure, Jonez transition, then Q-145. The 
pilot filed for FL350. The Scott One includes altitude 
restrictions, a top altitude and instructions to expect the 
filed altitude ten minutes after departure). Before 
departure ATC uses PDC, DCL or clearance delivery to 
issue the clearance: 

“Cleared to Johnston Airport, Scott One departure, 

Jonez transition, Q-OneForty-five. Climb via SID.” 

NOTE

 

In Example 3, the aircraft must comply with the Scott One 
departure lateral path and any published speed and 
altitude restrictions while climbing to the SID top altitude. 

4. 

(Using the Example 3 flight plan, ATC determines the 

top altitude must be changed to FL180). The clearance will 

Departure Procedures 

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