Code 51 PCN Appeal: How to Challenge a No-Entry Sign PCN

1. What does contravention Code 51 mean?

Code 51 means that your vehicle is alleged to have passed a no-entry sign from the prohibited direction. It commonly concerns entering the exit of a one-way road, but no-entry signs can also restrict an individual junction or a route admitting only the vehicles identified on an exception plate.

The allegation is about passing the sign, not parking or causing an obstruction. An empty road or a short journey beyond the sign does not itself answer it. Check the complete description on the PCN: a no-entry sign is different from a no-motor-vehicles sign or a separate allegation of driving against a one-way instruction.

This guide covers a civil Penalty Charge Notice. The authority must have the relevant enforcement powers for the restriction and area; a police notice follows a different process.

Contravention

Code 51: failing to comply with a no entry sign

Typical restrictions

Entry against a one-way system, prohibited entry at a junction, or a no-entry restriction with a permitted-vehicle exception

Main evidence

CCTV showing the entry, the red sign facing that approach, any exception plate and the operative restriction

Penalty amount

London: £160, reduced to £80 during the initial discount period. England outside London: £60 or £70, reduced to £30 or £35, according to the applicable charging band. Follow the notice for Wales and the discount deadline.

Representations

For a London Code 51 PCN, the authority must receive your representation within 28 days of service of the PCN

Appeal route

Formal representations to the issuing authority; after rejection, London Tribunals in London or the Traffic Penalty Tribunal under the relevant schemes elsewhere

2. Which sign applies to a Code 51 PCN?

The no-entry sign is a red circular disc with a horizontal white bar: diagram 616, TSRGD Schedule 3 Part 2 item 10. It means no entry for vehicular traffic from the direction facing the sign. A red ring containing a motorcycle and car is a different restriction.

A supplementary plate can identify an exception for cycles, buses, local buses, buses and cycles, local buses and cycles, or trams. Read the actual plate rather than assuming that an exception at another entrance applies here.

The NO ENTRY road marking can supplement the upright sign. Its absence does not, by itself, invalidate a properly signed no-entry restriction. The signs should make clear which entrance is prohibited before the driver commits to it.

3. What must the authority establish?

The evidence needs to connect your vehicle, its direction of travel and the sign at the prohibited entry point. A photograph showing the back of a sign or a different approach cannot, on its own, show what the driver could see.

• The restriction applied: check the operative order, map or other legal basis against the road, direction and date. Temporary restrictions need evidence of when and where they operated. Older signs may have a saved legal basis which also needs checking.
• The sign faced the relevant approach: compare the CCTV with dated photographs showing its position, orientation and any exception plate. Signs indicating the start of a restriction must be as near as practicable to that point.
• The entrance was adequately signed: check visibility before the turn, obstruction by vehicles or street furniture, and confusing combinations of road-closure and directional signs. There is no universal requirement for two no-entry signs.
• Night-time requirements were met: direct lighting depends on the road speed, proximity to street lighting and the conditions in TSRGD. Temporary roadworks signs and bollard-mounted signs need their own checks; an unlit sign is not automatically defective.
• The prohibited movement occurred: the full recording should establish that the identified vehicle passed the sign in the prohibited direction. Being filmed elsewhere on the road is not the same evidence as the entry itself.
• The correct person is liable: check ownership, any qualifying hire arrangement and the notice history under the applicable enforcement scheme.

4. Grounds for appealing a Code 51 PCN

Build the representation around the evidence that is wrong, missing or inconsistent. A missed sign and a sign that could not adequately be seen are different arguments.

• The vehicle did not make the alleged entry: identify the route actually taken, any gap in the recording or a registration mismatch.
• The sign was obscured or misleading on your approach: show the driver's view before the entry, including roadworks, competing instructions and the last available alternative route.
• The restriction did not cover this movement: point to the relevant order schedule, map, direction, commencement or temporary operating conditions.
• A genuine exception applied: provide the applicable provision, vehicle classification and evidence that its conditions were satisfied.
• There is a liability or notice problem: supply dated ownership or qualifying hire documents, or identify the precise defect under the applicable scheme.
• The handling of your representation was unfair: retain submission and response dates, acknowledgements and the explanation for delay. A London response beyond three months is not an automatic statutory cancellation.

5. Exceptions, access and mitigation

An 'Except cycles' plate does not permit a car to enter. Similarly, a bus exception does not become a taxi, private-hire or residents' exception. Match the vehicle to the sign and the applicable legal provision.

A delivery, nearby home, Blue Badge, passenger drop-off or satnav instruction does not itself authorise entry. If you rely on police directions, emergency use or another legal exception, identify the provision and provide evidence of the circumstances and its conditions.

Roadworks do not automatically authorise a prohibited entry. Where barriers and signs appeared to direct you into the restriction, show the complete layout and the point at which another route could have been chosen. Reversing through the entry is not a general exemption either.

The authority can consider mitigation even where no legal ground applies. Explain the circumstances and ask for discretion, but keep that request separate from an evidence-based ground: the London adjudicator cannot cancel a PCN solely because the circumstances are sympathetic.

6. How to make a formal representation

For a London Code 51 PCN, submit formal representations to the issuing authority using the details on the notice. London Tribunals states they must be received "within 28 days of the date the Penalty Charge Notice is served".

Outside London, use the submission route and deadline on the notice under the applicable English or Welsh scheme.

1. Open the official evidence and challenge portal shown on the PCN. Enter the notice reference and vehicle registration.
2. Watch the complete CCTV and record the approach, entry point, direction and time. Obtain dated photographs of the no-entry sign and any exception plate facing that approach.
3. State your ground and explain the specific issue: disputed entry, obscured or confusing signs, restriction extent, an applicable exception or liability. Attach the photographs, route plan and documents that support it.
4. Identify any missing evidence needed to resolve the point, submit the representation by the deadline and keep the full text, attachments and dated acknowledgement.

7. How long does the authority have to respond?

London Tribunals states that the authority "should normally respond to representations within 3 months".

For formal representations under England's 2022 regulations outside London, the authority must serve its decision within 56 days of receiving them. Welsh Government guidance also states a 56-day response period under the separate Welsh regulations.

8. Check the Notice of Rejection and evidence

The Notice of Rejection should explain why the authority has rejected your representation and provide the tribunal appeal instructions. Check whether it addresses the actual dispute: which sign faced you, where it became visible, what the CCTV shows and why an exception does not apply.

For roadworks or a changed layout, compare the dates and positions of the photographs with the recording. A clear sign photographed on a different day does not resolve an allegation that it was obscured at the time. For a disputed order, identify the exact map, article or temporary restriction condition still in issue.

Record the date of service and the appeal deadline. Keep the PCN, your representation, acknowledgement, rejection and evidence together. If response delay is relevant, preserve the complete correspondence chronology and any explanation provided.

9. Taking a Code 51 appeal to the tribunal

For a London PCN, register your appeal with London Tribunals within 28 days beginning with service of the Notice of Rejection. Use its verification details, select the relevant ground and explain how the sign, entry recording or applicable exception supports your case.

Outside London, the Traffic Penalty Tribunal handles the relevant English and Welsh schemes. Use the appeal details in the rejection. Both tribunals are independent and normally charge no appeal fee; if the appeal is refused, the full penalty is normally payable.

Arrange the evidence in the order the driver encountered it: approach, competing signs, decision point and prohibited entry. Respond to the authority's evidence pack and distinguish a legal ground from a request for discretion. Previous decisions illustrate how particular evidence was assessed; they do not decide a different journey automatically.

2025 London Tribunals Code 51 results

102 of 378 recorded cases were allowed (27.0%).