← Rules for pedestrians
Rule 16: Moving vehicles
Legal requirement — says MUST
Crossing the road (rules 7 to 17)
Moving vehicles. You MUST NOT get onto or hold onto a moving vehicle.
Law RTA 1988 sect 26
Why the capitals matter. The Highway Code writes a rule in capitals — MUST or MUST NOT — when it is backed by law, so breaking it is a criminal offence. The rules that do not use capitals are advice.