No it's not.
When you are told to hold short of Echo you hold short of the sign that tells you you are about to cross Echo.
When you are told to hold short of Runway 27L you hold short of the sign that says '27L', where the wigwags/guard ambers are, if you've not been told to hold at a specific point.
It's all in ICAO PANS/ATM Doc4444.
Last edited by Gonzo; 27th February 2010 at 06:06.