Corklad,
It sounds about right in broad terms. The JAA makes the regs, and yet each member-state imposes its own little additional requirements. So if you want to know exactly what you have to do, get in touch with the Aviation Authority of the particular country you are planning to work in.
If it is the UK,
www.caa.co.uk is a good sourse of info.
Good luck!
Spektor.