[QUOTE]In a ICAO world, ATC shall not give you descent below MSA, unless you are under radar control and minimum radar vectoring altitude is lower than MSA.
Thats exactly what I think too. Is there a ICAO reference to that somewhere??
Do you have to be on a heading to be receiving 'radar vectors' ?? In my company there is a general belief that yo have to be on a heading, otherwise you are below MSA, tracking via your own NAV and therefore not sbject to terrain clearance by atc.
Cheers