ATC
'Climb Via' Clearances Continue To Confuse Pilots
Recent blanket implementation of "'climb via' dilutes its effectiveness and has caused confusion among some cockpit crewmembers.”

U.S. air traffic controllers have interpreted new “climb via” phraseology to include top or final altitudes as crossing restraints, somewhat contrary to what the industry expected. This has translated into almost every standard instrument departure (SID) becoming eligible for use of the phraseology, according to Rich Boll, a business jet pilot and chairman of NBAA’s ATC and flight technologies working group.