Section 2. Clearances

4-2-1. CLEARANCE ITEMS

Issue the following clearance items, as appropriate, in the order listed below:

  1. Aircraft identification.
  2. Clearance limit.
    1. When the clearance limit is an airport, the word “airport” must follow the airport name.
    2. When the clearance limit is a NAVAID, and the NAVAID type is known, the type of NAVAID must follow the NAVAID name.
    3. When the clearance limit is an intersection or waypoint, and the type is known, the type must follow the intersection or waypoint name.
  3. Standard Instrument Departure (SID) or vectors, where applicable.
  4. Route of flight including ADR/ADAR/AAR when applied.
  5. Altitude data in the order flown.
  6. Mach number, if applicable.
  7. USAF. When issuing a clearance to an airborne aircraft containing an altitude assignment, do not include more than one of the following in the same transmission:
    1. Frequency change.
    2. Transponder change.
    3. Heading.
    4. Altimeter setting.
    5. Traffic information containing an altitude.
  8. Holding instructions.
  9. Any special information.
  10. Frequency and beacon code information.

4-2-2. CLEARANCE PREFIX

  1. Prefix a clearance, information, or a request for information which will be relayed to an aircraft through a non-ATC facility by stating “A-T-C clears,” “A-T-C advises,” or “A-T-C requests.”
  2. Flight service stations and ARTCC Flight Data Units must prefix a clearance with the appropriate phrase: “ATC clears,” “ATC advises,” etc.

4-2-3. DELIVERY INSTRUCTIONS

Issue specific clearance delivery instructions, if appropriate.

4-2-4. CLEARANCE RELAY

Relay clearances verbatim.

4-2-5. ROUTE OR ALTITUDE AMENDMENTS

  1. Amend route of flight in a previously issued clearance by one of the following:
    1. State which portion of the route is being amended and then state the amendment.
    2. State the amendment to the route and then state that the rest of the route is unchanged.
    3. Issue a clearance “direct” to a point on the previously issued route.
    4. Issue the entire route by stating the amendment.
  2. When route or altitude in a previously issued clearance is amended, restate all applicable altitude restrictions.

    2. Crossing altitudes and speed restrictions on Obstacle Departure Procedure/s (ODP/s) cannot be canceled or amended by ATC.

  3. Issue an amended clearance if a speed restriction is declined because it cannot be complied with concurrently with a previously issued altitude restriction.
  4. Air traffic control specialists should avoid route and/or altitude changes for aircraft participating in the North American Route Program (NRP) and that are displaying “NRP” in the remarks section of their flight plan.

4-2-6. THROUGH CLEARANCES

You may clear an aircraft through intermediate stops.

4-2-7. ALTRV CLEARANCE

Use the phrase “via approved altitude reservation flight plan,” if the aircraft will operate in an approved ALTRV.

4-2-8. IFR-VFR AND VFR-IFR FLIGHTS

  1. Clear an aircraft planning IFR operations for the initial part of flight and VFR for the latter part to the fix at which the IFR part ends.
  2. Treat an aircraft planning VFR for the initial part of flight and IFR for the latter part as a VFR departure. Issue a clearance to this aircraft when it requests IFR clearance approaching the fix where it proposes to start IFR operations. The phraseology CLEARED TO (destination) AIRPORT AS FILED may be used with abbreviated departure clearance procedures.
  3. When an aircraft changes from VFR to IFR, the controller must assign a beacon code to Mode‐C equipped aircraft that will allow MSAW alarms.
  4. When VFR aircraft operating below the minimum altitude for IFR operations requests an IFR clearance and the pilot informs you, or you are aware, that they are unable to climb in VFR conditions to the minimum IFR altitude:
    1. Before issuing a clearance, ask if the pilot is able to maintain terrain and obstruction clearance during a climb to the minimum IFR altitude.
    2. If the pilot is able to maintain their own terrain and obstruction clearance, issue the appropriate IFR clearance as prescribed in paragraph 4-2-1, Clearance Items, and paragraph 4-5-6, Minimum En Route Altitudes.
    3. If the pilot states that they are unable to maintain terrain and obstruction clearance, instruct the pilot to maintain VFR and to state intentions.
    4. If appropriate, apply the provisions of paragraph 10-2-7, VFR Aircraft In Weather Difficulty, or paragraph 10-2-9, Radar Assistance Techniques, as necessary.

4-2-9. CLEARANCE ITEMS

The following guidelines must be utilized to facilitate the processing of airfile aircraft:

  1. Ensure the aircraft is within your area of jurisdiction unless otherwise coordinated.
  2. Obtain necessary information needed to provide IFR service.
  3. Issue clearance to destination, short range clearance, or an instruction to the pilot to contact an FSS if the flight plan cannot be processed. If clearance is to destination airport, the phraseology CLEARED TO (destination) AIRPORT must be used. If clearance is to a NAVAID, state the name of the NAVAID followed by the type of NAVAID, if the type is known. If clearance is to an intersection or waypoint and the type is known, the type must follow the intersection or waypoint name.

4-2-10. CANCELLATION OF IFR FLIGHT PLAN

  1. If necessary, before instructing an IFR aircraft arriving at an airport not served by an air traffic control tower or flight service station to change to the common traffic advisory frequency, provide the pilot with instructions on how to cancel his/her IFR flight plan.
    1. Airports with an air/ground communications station:
    2. Airports without an air/ground communications station:
  2. Respond to a pilot's cancellation of his/her IFR flight plan as follows: