Originally Posted by Dumbledor
On the first call to London, after dep from STN, and having reported the passing level to STN DIR, there is no requirement to report the passing level again unless requested. That is correct, is it not?
Correct. For example, the BUZAD and CPT departures where standard procedure is for SS DIR to climb you above the SID altitude before handing you over to London Control, there is no requirement to report your passing level again on first contact with London.
The SS controller is sitting at the other side of the room from the London controller using the same equipment hence there is no requirement for the London controller to verify the Mode C again.
If in doubt though it does no harm to report your passing level.