Anyone know if this is standard Boeing and Airbus SOP?
ICAO recommends in PANS-OPS (Doc 8168) and the ACAS manual (Doc 9863) not to operate TCAS II while taxiing, so I hope it's in every manufacturer's SOP.
http://www.eurocontrol.int/sites/def...disclaimer.pdf
"TCAS II routine operation on the ground degrades safety. Performances of the ground surveillance equipment (e.g. SSR, A-SMGCS) and of the surveillance by airborne TCAS II units can be compromised if there are significant numbers of TCAS II units operated on the ground. As a result, ATC and the operation of airborne TCAS II could be adversely affected."