Covid pass letter

[Muchmorethan]

Hi

I have a printed covid pass from when l had my first two vaccinations. This does not have an expiry date.

When l got my booster l ordered a new letter. This one has an expiry date for one months time.

Does anyone know why they now have expiry dates and if l can just use the original letter to save repeat ordering.

Many thanks

It's in case you get Covid, the pass becomes invalid. If there's a date on it you have to renew it & can't until you are past the 10 days. I'm assuming, anyway.

I haven't seen and information about the one's without an expiry date being invalid, so I'm assuming they can still be used