ATPL Skill test???

[Leo8]

I've heard talk of an ATPL skill test or something like that having to be completed before you can "unfreeze" the ATPL.

Can anyone tell me a little more about this and the requirements.

Can it be done before you reach 1500hrs or does it have to be at you first OPC/LPC after you reach the 1500?

Thanks

I think I have answered my own questions by sifting through Lasors!