AIM 

9/5/24 

2. 

Instruct pilots to “comply with speed restrictions” when the aircraft is joining or resuming a charted 

procedure or route with published speed restrictions. 

EXAMPLE

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(ATC vectors an aircraft off of a SID to rejoin the procedure at a subsequent waypoint. When instructing the aircraft to resume 

the procedure, ATC also wants the aircraft to comply with the published procedure speed restrictions): “Resume the SALTY 

ONE departure. Comply with speed restrictions.” 

CAUTION

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The phraseology “Descend via/Climb via SID” requires compliance with all altitude and/or speed restrictions depicted on 
the procedure. 

3. 

Instruct the pilot to “resume published speed.” Resume published speed is issued to terminate a speed 

adjustment where speed restrictions are published on a charted procedure. 

NOTE

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When instructed to “comply with speed restrictions” or to “resume published speed,” ATC anticipates pilots will begin 

adjusting speed the minimum distance necessary prior to a published speed restriction 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 assigned speed restrictions or as required to ensure 

compliance with 14 CFR Section 91.117. 

EXAMPLE

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(An aircraft is flying a SID/STAR with published speed restrictions. ATC issues a speed adjustment and instructs the aircraft 

where the adjustment ends): “Maintain two two zero knots until BALTR then resume published speed.” 

NOTE

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The ATC assigned speed assignment of two two zero knots would apply until BALTR. The aircraft would then comply with 

the published speed restrictions. 

4. 

Advise the pilot to “delete speed restrictions” when either ATC assigned or published speed restrictions 

on a charted procedure are no longer required. 

EXAMPLE

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(An aircraft is flying a SID with published speed restrictions designed to prevent aircraft overtake on departure. ATC 

determines there is no conflicting traffic and deletes the speed restriction): “Delete speed restrictions.” 

NOTE

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When deleting published restrictions, ATC must ensure obstacle clearance until aircraft are established on a route where 

no published restrictions apply. This does not relieve the pilot of those speed restrictions which are applicable to 14 CFR 

Section 91.117. 

5. 

Instruct the pilot to “climb via” or “descend via.” A climb via or descend via clearance cancels any 

previously issued speed restrictions and, once established on the depicted departure or arrival, to climb or 

descend, and to meet all published or assigned altitude and/or speed restrictions. 

EXAMPLE

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1. 

(An aircraft is flying a SID with published speed restrictions. ATC has issued a speed restriction of 250 knots for spacing. 

ATC determines that spacing between aircraft is adequate and desires the aircraft to comply with published restrictions): 
“United 436, Climb via SID.” 

2. 

(An aircraft is established on a STAR. ATC must slow an aircraft for the purposes of spacing and assigns it a speed of 

280 knots. When spacing is adequate, ATC deletes the speed restriction and desires that the aircraft comply with all published 
restrictions on the STAR): “Gulfstream two three papa echo, descend via the TYLER One arrival.” 

NOTE

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1. 

In example 1, when ATC issues a “Climb via SID” clearance, it deletes any previously issued speed and/or altitude 

restrictions. The pilot should then vertically navigate to comply with all speed and/or altitude restrictions published on the 

SID. 

2. 

In example 2, when ATC issues a “Descend via <STAR name> arrival,” ATC has canceled any previously issued speed 

and/or altitude restrictions. The pilot should vertically navigate to comply with all speed and/or altitude restrictions 
published on the STAR. 

4

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4

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10 

ATC Clearances and Aircraft Separation