@seekerAU @JHONIEL: This is exactly what the EA site says about expiry of assessment:
How long is the assessment letter valid for migration purposes? Do I need a Duplicate Letter?
Whilst the assessment outcome will remain valid indefinitely for Engineers Australia, our understanding is that DIBP mandates that the assessment notification be no more than three years old at the date of migration application. If you require an updated letter of assessment after this time, please contact our Member Service Team.
****I think it is the Assessment NOTIFICATION(meaning the result letter released from EA) ang dapat no more than 3yrs... NOT the Assessment Outcome itself(since it is valid indefinitely). That's why it says, if you require an updated letter, of assessment, u have to contact them again.
Pls clarify if my understanding is correct. Thanks in advance