What should you do if you want to overtake a tractor but aren’t sure if it’s safe?

Explanation: You should never overtake if you're in any doubt it is safe to do so, even if stuck behind a slow vehicle like a tractor. Before overtaking, you should check you can see enough of the road ahead to guarantee the manoeuvre is safe. While being stuck behind a slow vehicle is frustrating, the few minutes gained by overtaking aren't worth the risk of collision.

Category: Rules of the road (2021)

References: The Official DVSA Guide to Driving: Section 7, Highway Code: Rule 163