Yellow lines painted along the edge of the kerb inform drivers about waiting restrictions along the carriageway.
It is vital to distinguish between single and double yellow lines, as well as separate loading kerb marks.
What this sign means
Yellow lines regulate waiting (parking). Single lines operate during specified hours, whereas double lines apply 24 hours a day.
Waiting restrictions do not automatically prohibit loading or dropping off passengers unless accompanied by kerb blips.
- Single yellow line: Waiting restrictions apply during times shown on nearby signs.
- Double yellow line: No waiting at any time (no sign required).
- Kerb blips: Indicate specific loading and unloading restrictions.
What to do when you see it
Check nearby roadside plates for exact operational hours when approaching a single yellow line.
Do not park on double yellow lines unless setting down passengers or displaying a valid Blue Badge within legal allowances.
How this sign is tested
Theory test scenarios test knowledge on the difference between single and double lines, plus Blue Badge holder rules.
In practical driving tests, pulling up on yellow lines when asked to carry out a routine stop can result in a driving fault if done illegally.
Common mistakes
Assuming double yellow lines only apply during daytime working hours.
Failing to look for upright time plates when parking along single yellow lines.
Test yourself on this one
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Practise road sign questionsFrequently asked questions
Can Blue Badge holders park on double yellow lines?
Yes, Blue Badge holders can usually park on double yellow lines for up to 3 hours unless loading restrictions apply.
Can I stop on double yellow lines to pick up a passenger?
Yes, brief stopping to drop off or pick up passengers is generally allowed provided no loading bans are active.
Do double yellow lines require an accompanying sign?
No, double yellow lines indicate 'no waiting at any time' and do not require an upright sign plate.