From 1 February 2021 the law on the use of tyres aged 10 years or older comes into place. It is illegal for the front (steering) axle or axles of affected goods vehicles with mass exceeding 3.5 tonnes, buses, minibuses and coaches on Great Britain's roads to be fitted with older tyres.

Further information:

https://www.gov.uk/government/publications/use-of-tyres-aged-more-than-10-years-on-goods-vehicles-buses-and-coaches/tyre-age-restrictions-for-good-vehicles-buses-coaches-and-minibuses