So lets assume that you are using your green rating to keep your IR current and your application hits the desk of the CAA officer at 1700 on 07 Apr. If they stamp it then all is well but if it is left til the next day they will not stamp because the rules applicable at the time of license issue will be EASA and thus no mil accreditation applies
Whilst the new EU Aircrew Regulation becomes law at 0001 on 8 Apr 12, implementation of the Annexes (i.e. the implementing rules) has been deferred until 1 Jul 12. Until then, the CAA will continue to operate in accordance with JAR-FCL and so all existing exemptions
should continue. Of course, the CAA have never been great on logic!