If a NPPL comes to you today (or before the end of the transition period), it must be valid under the old system and you will then need to sign the Certificate of Revalidation as I stated above.
Once that has been signed, the holder comes onto the new system.
If the holder has been exercising Microlight and/or SLMG privileges
on an SSEA Class Rating , you need to contact NPLG for the correct form and guidance note. It hasn't yet been uploaded onto the website as we don't want Examiners misunderstanding. Even if written in words of half a syllable, let alone in 'shall not unless' ANO-speak, you would be surprised how many Examiners seem to be incapable of following even the simplest instructions....
We still see some Examiners conducting JAR-FCL PPL Skill Tests for the NPPL instead of the NST and GST, for example....