8-5-1
Altitude/Flight Level Transition
JO 7110.65BB, Change 3, effective July 9, 2026 · Official text on faa.gov
When vertical separation is applied between aircraft crossing the offshore/oceanic airspace boundary below FL 180, control action must be taken to ensure that differences between the standard altimeter setting (QNE) and local altimeter setting (QNH) do not compromise separation. (See FIG 8-5-1.)
