From the DVSA:

We wrote to you previously to announce the government’s plans to help to tackle the shortage of lorry drivers by creating an extra 50,000 lorry tests.

Part of the plan is to allow all car drivers to tow a trailer weighing up to 3,500kg without the need for an additional licence when the law is changed.

Subject to Parliamentary processes, this change will be introduced on Monday 15 November 2021.

We’ve updated the guidance on GOV.UK about how the changes work.