Seat expiry date

[drmotorsport]

I'm trying to find the ever moving regulations in the new fangled NCR relating to seat expiry dates and having no luck. I recall there was a 5 year extension around Covid times but Googling guidance from MSUK is all old docs. I just want to check that I don't need to replace a perfectly good seat? - it's a FIA Standard 8855-1999 "Not valid after 2019" and only used for club level UK circuit racing.

[Trev450]

I always find it best just to call them. They're generally very helpful and if you ask them, they will send you an email confirmation should you need to prove it to any scruts.