Theory Hub UK Theory Test
← General rules, techniques and advice for all drivers and riders

Rule 135: The middle lane on a three-lane road

Advice, not law Multi-lane carriageways (rules 133 to 143)

Where a single carriageway has three lanes and the road markings or signs do not give priority to traffic in either direction

  • use the middle lane only for overtaking or turning right. Remember, you have no more right to use the middle lane than a driver coming from the opposite direction
  • do not use the right-hand lane.

Advice, not law. This rule is not written in capitals, so breaking it is not an offence in itself — but it can still be used in evidence in court to establish liability. The rules that say MUST or MUST NOT are the ones backed by law.