TCAS
Thanks for the replies.I guess what im looking for is the individual state policy on this type of situation.Years ago when TCAS first came on the scene, airspace was not as busy as it is now, and TCAS was clearly not a mandatory item.Along came RVSM changing the equation, but generally still no mandatory TCAS at least in RVSM.It seems though that as with most things in aviation, the evolution of procedures keeps developing and perhaps this is reflected in the various regulators policies regarding, in this case, TCAS status.There appears to be a wide variation in policy, something that makes knowing how to operate problematic.