I also got mine in the UK through the same store, and posts through Racer Parts Wholesale.
UK stores sells FIA certified HANS, not SFI. FIA have no expiration dates. Lemons, and most other series accept either one and don't care which one you have, so I would say, don't bother with the SFI certificate.
Zzzzzzzzzzzzzzzzzzzzz
MarioKart Driving School: 1987 Honda Prelude Si (Opus #28)
Loudon, NH 2014 - Millville, NJ, Lightening 2019 (RIP)
New and improved: 1987 Honda Prelude Si (Opus #11) Pittsburgh, PA 2021 - ??
and finally won something, Class C Win: Loudon, NH 2022