CFR > Title 32 - National Defense > SUBTITLE A—Department of Defense > CHAPTER I—OFFICE OF THE SECRETARY OF DEFENSE (parts 1 to 399) > SUBCHAPTER M—MISCELLANEOUS (parts 191 to 284) > PART 245—PLAN FOR THE EMERGENCY SECURITY CONTROL OF AIR TRAFFIC (ESCAT) > SUBPART F—Procedure for Movement of Air Traffic Under ESCAT (§245.24 to §245.27) > 245.27—Data entry.

245.27—Data entry.

Aircraft will file IFR or VFR flight plans, assigned a discrete transponder code, and must be in direct radio communication with ATC. The appropriate EATPL number will be entered in the remarks section of the flight plan. The EATPL number will be passed with flight plan data from one ATC facility to the next, and to the appropriate air defense control facilities.