But if you are doing the CPL module of a modular course, the CAA insist that you have a Class 1 Medical!
It seems to hinge on the interpretation of the word 'valid'.
You must have a 'valid' qualification yourself, if you are to teach others for the issue of it.
You may have a 'valid' MEP, and an IR with a Class 2 Medical, but, although you may have a CPL, it is not considered 'valid' by the CAA, unless you have a Class 1 medical to go with it.
I can teach a PPL student steep turns, stalling, navigation, etc. with a Class 2, but to give the same training to someone who already has a PPL, for the purpose of gaining a CPL, I need a Class 1.
No safety case whatsoever.
It just multiplies my medical expenditure by about 4 times for absolutely no reason.
MJ