Sub note.
JAR PPL SEP/SLMG/TMG 24 month validation
UK NPPL SSEA/SEP/SLMG 24 month validation
PPL A(pre 1996) can still be 13 month validation for SLMG, SEP is 24 month validation.
The bi-annual flight check can cover both SEP/TMG i.e one flight check, but not SLMG which is a seperate rating.