Parking rules · clearly explained

Yellow lines, kerb marks and parking zones

Double yellow lines need no sign at all, and the bars across the kerb are a separate restriction from the lines along the road. Where the hours actually come from.

UK-specific guidanceSources shown on every guideReviewed 8 September 2026

Double yellow lines apply at all times and need no upright sign. A single yellow line means nothing without the hours, which are on a nearby plate — or, inside a Controlled Parking Zone, on the sign at the entrance to the zone.

Yellow lines prohibit waiting, not stopping. You may stop to let a passenger in or out, and you may load, unless something else prohibits it. Red lines and zig-zags are different: those prohibit stopping.

The bars across the kerb are a different restriction

The bars painted across the kerb are a separate restriction from the lines along the road. They ban loading. Two bars mean no loading at any time; one bar means no loading during the hours on the plate. Most people never notice them, and they are the reason a delivery driver gets a ticket on a road where loading looked allowed.

Look at the kerb before you unload. The lines along the road tell you about waiting. The bars across the kerb tell you about loading. A road can allow one and prohibit the other, and the two markings are read separately.

Controlled Parking Zones, and the sign you did not see

A Controlled Parking Zone is an area where the same waiting restriction applies throughout, so the hours are posted once at every entrance instead of on a plate beside every line.

That is why a single yellow line inside a zone has no time plate next to it. The absence of a plate is not a defect; the zone sign is the plate. Bays inside the zone that allow parking at other times are signed individually.

If you were ticketed on a single yellow inside a zone and you never saw the hours, the question is whether the zone entry signs were there and legible on the route you drove in by — not whether there was a sign at the spot.

Seasonal restrictions

Double yellow lines can carry seasonal restrictions where a sign says so — a coastal or tourist road may be double yellow only in summer.

What a Blue Badge changes on a yellow line →

Common questions

What is the difference between one yellow line and two?
A double yellow line means no waiting at any time and needs no upright sign. A single yellow line means no waiting during the hours shown — and those hours have to be posted somewhere, either on a plate beside the line or on the sign at the entrance to a Controlled Parking Zone.
Can I stop on a yellow line to drop someone off?
Yes. Yellow lines restrict waiting, not stopping, so setting down or picking up a passenger is not caught by them. What is caught is leaving the vehicle there. Red lines and the zig-zags at a crossing are the opposite: those prohibit stopping.
How do I know when the restriction applies if there is no time plate?
If the line is inside a Controlled Parking Zone, the hours are on the zone entry signs rather than beside each line. That is by design and it is not a defect. If there is no zone and no plate on a single yellow line, then the hours have not been given, and that is worth raising in a challenge.
Does the restriction still apply on a bank holiday?
It depends on what the sign says. Some plates and zone signs exclude bank holidays, some do not, and there is no national default. Read the days on the sign rather than assuming — this is one of the most common ways of collecting a ticket you did not expect.

Sources

Figures last checked 8 September 2026