Communication during LVP
Recently I was in the simulator whereby we conducted a CAT 3 ILS fully operational ILS. Once we took the briefed turn off, I was told to contact Ground once clear of the runway.
As we turned off, I noticed we were still within the ILS critical area thus I refrained from complying with the instruction; my intention was to ensure we were clear of the ILS critical area.
During the debrief the instructor mentioned that it is perfectly safe and legal to contact ground once we pass the holding point irrespective whether we see alternating amber/green lights or not. I didn’t want to come across argumentative thus I simply nodded and wrote down notes.
Would someone kindly direct me to a reference (FAA or ICAO) that can clarify my misunderstanding, please? Thanking you in advance.