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AIM CHG 2
tial contact, of the altitude leaving and any assigned
restrictions not published on the procedure.
1. (Cactus 711 is cleared to climb via the Laura Two
departure. The Laura Two has a top altitude of FL190):
"Cactus Seven Eleven leaving two thousand, climbing via
the Laura Two departure."
2. (Cactus 711 is cleared to climb via the Laura Two
departure, but ATC changed the top altitude to16,000):
"Cactus Seven Eleven leaving two thousand for one-six
thousand, climbing via the Laura Two departure."
7. If prior to or after takeoff an altitude restric-
tion is issued by ATC, all previously issued "ATC"
altitude restrictions are canceled including those pub-
lished on a SID. Pilots must still comply with all
speed restrictions and lateral path requirements pub-
lished on the SID unless canceled by ATC.
Prior to takeoff or after departure ATC issues an altitude
change clearance to an aircraft cleared to climb via a SID
but ATC no longer requires compliance with published alti-
"Climb and maintain flight level two four zero."
The published SID altitude restrictions are canceled; The
aircraft should comply with the SID lateral path and begin
an unrestricted climb to FL240. Compliance with pub-
lished speed restrictions is still required unless specifically
deleted by ATC.
8. Altitude restrictions published on an ODP are
necessary for obstacle clearance and/or design con-
straints. Crossing altitudes and speed restrictions on
ODPs cannot be or canceled or amended by ATC.
f. RNAV Departure Procedures
All public RNAV SIDs and graphic ODPs are
RNAV 1. These procedures generally start with an
initial RNAV or heading leg near the departure end of
runway (DER). In addition, these procedures require
system performance currently met by GPS or DME/
DME/IRU RNAV systems that satisfy the criteria
discussed in AC 90-100A, U.S. Terminal and En
Route Area Navigation (RNAV) Operations.
RNAV 1 procedures must maintain a total system er-
ror of not more than 1 NM for 95% of the total flight
AIM, Global Positioning System (GPS)
Paragraph 1-1-17 k, Impact of Magnetic Variation on PBN Systems
5-2-12 Departure Procedures