8/15/19 3/15/07 1/30/20 AIM  7110.65R CHG 2 AIM with altitude reporting enabled, unless otherwise instructed by ATC or unless the installed equipment has not been tested and calibrated as required by 14 CFR Section 91.217. If deactivation is required, turn off altitude reporting. 3. When participating in a VFR formation flight that is not receiving ATC services, only the lead aircraft should operate their transponder and ADS − B Out. All other aircraft should disable transponder and ADS − B transmissions once established within the formation. NOTE − If the formation flight is receiving ATC services, pilots can expect ATC to direct all non − lead aircraft to STOP SQUAWK, and should not do so until instructed. h. Cooperative Surveillance Phraseology Air traffic controllers, both civil and military, will use the following phraseology when referring to operation of cooperative ATC surveillance equip- ment. Except as noted, the following ATC instructions do not apply to military transponders operating in other than Mode 3/A/C/S. 1. SQUAWK (number). Operate radar beacon transponder/ADS − B on designated code with altitude reporting enabled. 2. IDENT. Engage the “IDENT” feature (mili- tary I/P) of the transponder/ADS − B. 3. SQUAWK (number) AND IDENT. Oper- ate transponder/ADS − B on specified code with altitude reporting enabled, and engage the “IDENT” (military I/P) feature. 4. SQUAWK STANDBY. Switch transpon- der/ADS − B to standby position. 5. SQUAWK NORMAL.  Resume normal transponder/ADS − B operation on previously as- signed code. (Used after “SQUAWK STANDBY,” or by military after specific transponder tests). 6. SQUAWK ALTITUDE. Activate Mode C with automatic altitude reporting. 7. STOP ALTITUDE SQUAWK. Turn off automatic altitude reporting. 8. STOP SQUAWK (Mode in use). Stop transponder and ADS − B Out transmissions, or switch off only specified mode of the aircraft transponder (military). 9. SQUAWK MAYDAY. Operate transpon- der/ADS − B in the emergency position (Mode A Code 7700 for civil transponder. Mode 3 Code 7700 and emergency feature for military transponder.) 10. SQUAWK VFR. Operate radar beacon transponder/ADS − B on Code 1200 in the Mode A/3, or other appropriate VFR code, with altitude reporting enabled. 4 − 1 − 21. Airport Reservation Operations and Special Traffic Management Programs This section describes procedures for obtaining required airport reservations at airports designated by the FAA and for airports operating under Special Traffic Management Programs. 1. The FAA may adopt rules to require advance operations for unscheduled operations at certain airports. In addition to the information in the rules adopted by the FAA, a listing of the airports and relevant information will be maintained on the FAA website listed below. a. Slot Controlled Airports. 2. The FAA has established an Airport Reservation Office (ARO) to receive and process reservations for unscheduled flights at the slot controlled airports. The ARO uses the Enhanced Computer Voice Reservation System (e − CVRS) to allocate reservations. Reservations will be available beginning 72 hours in advance of the operation at the slot controlled airport. Standby lists are not maintained. Flights with declared emergencies do not require reservations. Refer to the website or touch − tone phone interface for the current listing of slot controlled airports, limitations, and reservation procedures. NOTE − The web interface/telephone numbers to obtain a reservation for unscheduled operations at a slot controlled airport are: 1. http://www.fly.faa.gov/ecvrs. 2. Touch − tone: 1 − 800 − 875 − 9694  3. Trouble number: 540 422 4246. 3. For more detailed information on operations and reservation procedures at a Slot Controlled Airport, please see 14 CFR Part 93, Subpart K – High Density Traffic Airports. Services Available to Pilots 4 − 1 − 18