but as per EASA a SEP or MEP rating lapsed more than 3 years requires training as per initial issue (6h dual + checkride).
But that is NOT a definitative requirement and needs to be read in conjunction with the preceeding text.
AMC1 FCL.740(b)(1) The objective of the training is to reach
the level of proficiency necessary to safely operate the relevant type or class of aircraft.
The amount of refresher training needed should be determined on a case-by-case basis
by the ATO, taking into account the following factors: