When must a cyclist riding on the carriageway in daylight wear a high-visibility vest with reflective elements?
Explanation
The rules offer an alternative: when riding on the carriageway, a cyclist must wear a high-visibility vest OR have a white light burning at the front of the bike and a red light at the rear. If the lights are on, the vest is not required.
KET reference: KET 56: When riding on the carriageway, a cyclist must wear a high-visibility vest with reflective elements, or have a white light burning at the front of the bike and a red light at the rear.