Hit With a ULEZ, Clean Air Zone or Dart Charge Penalty? How to Challenge It (and Why It’s Not a Parking Ticket) — UK

A ULEZ, Congestion Charge, Clean Air Zone or Dart Charge penalty lands on your doormat looking exactly like a parking ticket — a Penalty Charge Notice (PCN) with a scary number and a countdown. So most people treat it like one: they either panic and pay, or they fire off an appeal on the wrong grounds to the wrong place. Both cost you money.

These are a different animal. They are civil road-user-charging penalties, they follow their own rules, and — crucially — they are decided by a completely different appeal body from parking tickets. Get the process right and a wrongly-issued penalty can be cancelled entirely. Here’s how they actually work.

First, understand what this penalty actually is

• It is a civil penalty, not a criminal one. You do not get a criminal record and there are no penalty points on your driving licence — no matter what the letter’s tone implies.
• It is issued because a charge went unpaid: you drove a non-compliant vehicle into a charging zone (ULEZ, a Clean Air Zone), or through a tolled crossing (Dart Charge, Mersey Gateway), and the daily charge or toll wasn’t paid in time.
• Paying the charge and paying the penalty are two different things. If your vehicle was genuinely compliant or exempt, there was no charge due in the first place — which can be a ground to cancel the whole penalty.

Know your numbers (and your clock)

Figures below are correct as at September 2026 — always check the exact amount printed on your own notice, as schemes do change their rates.

• ULEZ & Congestion Charge (London): PCN £180, reduced to £90 if paid within 14 days, rising to £270 if a Charge Certificate is issued after non-payment. (The daily ULEZ charge itself is £12.50; the Congestion Charge rose to £18 per day — £21 if paid late — on 2 January 2026.)
• Clean Air Zones (Birmingham, Bristol, Sheffield, Bradford, Newcastle, Portsmouth, Tyneside): typically a £120 PCN, halved to £60 if paid within 14 days. Check your city’s notice — figures can vary by zone.
• Dart Charge (Dartford Crossing): £70 PCN, reduced to £35 within 14 days, rising to £105 if it escalates.
• Mersey Gateway: £50 PCN, £25 within 14 days, £75 on a Charge Certificate.
• Scottish Low Emission Zones (Glasgow, Edinburgh, Dundee, Aberdeen): £60 base penalty, halved to £30 if paid within 14 days — but it doubles for each repeat offence by the same vehicle in the same zone within 90 days (£120, £240, up to a cap of £480 for cars, £960 for larger vehicles).

Which tribunal handles YOUR appeal — this is the bit people get wrong

• London schemes — ULEZ, Congestion Charge, the London LEZ: appeals go to the Road User Charging Adjudicators at London Tribunals. NOT the parking adjudicator, and nothing to do with the private-parking appeals services.
• Clean Air Zones (outside London), Dart Charge and Mersey Gateway: appeals go to the Traffic Penalty Tribunal.
• Scottish Low Emission Zones: appeals go to the First-tier Tribunal for Scotland.

These are independent adjudicators — not the council or TfL — and their decision is binding on the authority.

The two-stage process (get the order right)

1. Challenge the issuing authority first (a ‘representation’). You cannot go straight to the tribunal. You must first make representations to the body that issued the PCN (TfL, the council, National Highways/Dart Charge). Do this in writing, within the deadline on the notice, setting out your ground and attaching evidence.
2. Wait for the outcome. They either cancel it or send a Notice of Rejection.
3. Then appeal to the adjudicator. A Notice of Rejection gives you a fresh window — usually 28 days — to take your case to the correct tribunal above. This is free, and you can usually do it online or by post without a lawyer.

Grounds that actually work

• The penalty charge was never incurred — e.g. your vehicle met the emissions standard, or was exempt/registered for a discount, so no charge was due.
• You weren’t the owner/keeper at the time (you’d sold the vehicle, or it was hired out — provide the paperwork).
• The charge or penalty exceeded the amount that could properly be demanded, or the notice contains a procedural error.
• You had already paid the charge, or paid the penalty.
• The vehicle was taken without your consent (e.g. stolen — with a crime reference).
• There was a genuine, documented reason the charge couldn’t be paid, worth raising in mitigation (some schemes allow discretion even where the strict rules are met).

Put your strongest, factual ground first and back every claim with evidence (V5C, insurance, compliance checker screenshots, receipts).

Getting it in writing

The tribunals decide these cases on paper, so the quality of your written representation matters more than anything. State the scheme and PCN number, name the single clearest ground, reference the right rules, and attach your evidence — calmly and specifically. A well-structured letter that goes to the right body on the right ground is what gets a wrong penalty cancelled.

General information for the UK, not legal advice. Figures for ULEZ, the Congestion Charge, Clean Air Zones, Dart Charge, Mersey Gateway and Scottish Low Emission Zones are correct as at September 2026 — always check the amount printed on your own notice, as schemes and rates can change. Appeals for London schemes go to the Road User Charging Adjudicators at London Tribunals; for Clean Air Zones outside London, Dart Charge and Mersey Gateway to the Traffic Penalty Tribunal; and for Scottish Low Emission Zones to the First-tier Tribunal for Scotland. You must complete representations to the issuing authority before you can appeal to a tribunal. This guide does not cover private parking charges, which are a separate, contract-based process.