AIM

4/3/14

5−2−11

Departure Procedures

8. (An aircraft was issued the Bizee Two departure, “climb
via SID.” After departure, ATC vectors the aircraft off of
the SID, and then issues a direct routing to rejoin the SID
at Rockr waypoint which does not have a published altitude
restriction. ATC wants the aircraft to cross at or above
10,000). The clearance will read:

“Proceed direct Rockr, cross Rockr at or above

one-zero thousand, climb via the Bizee Two departure.”

NOTE

−

In Example 8, the aircraft will join the Bizee Two SID at
Rockr at or above 10,000 and then comply with the pub-
lished lateral path and any published speed or altitude
restrictions while climbing to the SID top altitude.

9. (An aircraft was issued the Suzan Two departure,
“climb via SID” in the IFR departure clearance. After
departure ATC vectors the aircraft off of the SID, and then
clears the aircraft to rejoin the SID at Dvine waypoint,
which has a published crossing restriction). The clearance
will read:

 “Proceed direct Dvine, Climb via the Suzan Two

departure.”

NOTE

−

In Example 9, the aircraft will join the Suzan Two departure
at Dvine, at the published altitude, and then comply with
the published lateral path and any published speed or alti-
tude restrictions.

6.

Pilots cleared for vertical navigation using the

phraseology “climb via” must inform ATC, upon ini-

tial contact, of the altitude leaving and any assigned

restrictions not published on the procedure.

EXAMPLE

−

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.

EXAMPLE

−

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-
tude restrictions:

“Climb and maintain flight level two four zero.”

NOTE

−

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. Compliance with these restrictions is

mandatory and CANNOT be lowered or cancelled 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

time.

REFERENCE

−

AIM, Global Positioning System (GPS)
Paragraph 1

−1−18l, Impact of magnetic Variation on RNAV Systems