How long is a pass at selection valid for? Will I have to do selection again?

Hi,

Assessment Centre (AC) results, as well as medical passes, are valid for exactly 1 year.
Although, it's best to book your AC date when you feel ready to join the British Army. This way your fitness will be at the expected standard. Everyone should still be able to meet the AC standards when they arrive at Basic Training.

See the link below for the updated fitness standards.
https://apply.army.mod.uk/how-to-join/can-i-join/fitness/physical-entry-standards

I cannot guarantee if you will need to complete the assessments again. Please call 0345 600 8080 and our recruiters can check your application and advise you on the next steps.

I hope this helps.