Birmingham Clean Air Zone PCN: 6 Grounds That Win at the Tribunal

The Birmingham CAZ Is the Most Aggressive in the UK

Birmingham's Clean Air Zone Class D has been operational since 1 June 2021 and is among the most aggressive in the UK in scale and revenue. Non-compliant vehicles pay £8 per day for cars, taxis, vans and LGVs, and £50 per day for buses, coaches and HGVs. Miss the payment window and the £100 PCN (or £180 for HGVs) follows, reducing to £50 if paid within 14 days.

The volume is large enough that Birmingham City Council has a dedicated PCN appeals process and the Traffic Penalty Tribunal hears a steady volume of CAZ cases each year. The good news for drivers is that six grounds consistently succeed at tribunal — and most CAZ PCNs are issued on facts that engage at least one of them.

The Six Grounds That Win

Ground 1: Vehicle Is CAZ-Compliant

The CAZ-D requirements are:

• Cars and vans: Euro 4 petrol (registered after January 2006 in most cases) OR Euro 6 diesel (registered after September 2015)
• HGVs / buses / coaches: Euro VI
• Motorcycles: not subject to CAZ-D in Birmingham (but check for other zones)

The most common Ground 1 cases are:

• Petrol cars from 2003-2005 that ARE Euro 4 by manufacturer certificate but registered before the January 2006 cutoff
• Diesel cars from late 2014 / early 2015 that ARE Euro 6 by manufacturer certificate but registered before September 2015
• Recent imports where the V5C does not yet reflect the correct Euro standard

The supporting evidence is the Conformity of Production Certificate from the manufacturer, available from most main dealers within 14 days of request. Birmingham's automated check uses the V5C tax-class data — if your V5C is wrong, the manufacturer certificate trumps it.

Ground 2: Exemption Applies

The published Birmingham CAZ-D exemptions include:

• Disabled tax class vehicles (subject to certain limits)
• Historic vehicles (registered before 1 January 1985, tax class "Historic")
• Agricultural vehicles and certain specialised vehicles
• Vehicles registered to people in receipt of qualifying disability benefits (subject to means test)
• Some military and emergency-service vehicles

If your V5C shows a tax class that should exempt your vehicle, the PCN was wrongly issued. Submit a copy of the V5C with your representations.

Ground 3: Payment Was Made But Not Registered

The CAZ daily charge is paid via gov.uk/clean-air-zones. Payment is accepted up to 6 days after entry (the entry day plus 6 more days). If you paid within that window but a PCN was still issued, the most likely causes are:

• Wrong VRM on the payment — a typo
• Payment to a different city's CAZ — accidentally selecting Birmingham instead of Bath, Bristol, Sheffield etc
• Payment took longer than expected to clear and was flagged before the system reconciled

For each, the evidence is the same: a screenshot of the payment confirmation + bank statement showing the £8 leaving your account + the date and time stamp. Submit with the representations.

Ground 4: Signage Non-Compliant

The CAZ-D boundary signs in Birmingham must meet the Traffic Signs Regulations and General Directions 2016, including diagram numbers and minimum sign sizes. Birmingham's signs have been challenged on several specific routes where:

• Signs were obscured by foliage
• Signs faced the wrong direction
• Signs were placed too close to the boundary for drivers to react
• Signs not in compliance with the prescribed dimensions

Photos taken from the driver's seat angle as you approach the boundary, in normal driving conditions, are persuasive at tribunal. The council can reasonably argue that one missing or faded sign does not undermine the zone if other signs are present.

Ground 5: ANPR Misread of the Plate

ANPR cameras can misread plates in known patterns:

• O confused for 0, I for 1, B for 8
• 5 confused for S
• Damaged or partially obscured plates

If the PCN was issued to your VRM but you were not in Birmingham that day, the ANPR likely misread another vehicle's plate. Evidence:

• GPS / Find My iPhone / Google Maps Timeline showing you elsewhere
• Fuel receipts from another city
• Witness statements from people you were with

The council can sometimes provide the ANPR image on request — examine it for the misread pattern.

Ground 6: Special Circumstances

Discretionary grounds (Birmingham can refuse but tribunal often allows):

• Medical emergency — taking someone to hospital
• Vehicle theft — you were not in control of the vehicle
• Funeral or bereavement — going to a funeral
• Domestic abuse fleeing — moving to a refuge

Each requires documentary evidence (hospital records, police crime number, funeral service record, refuge letter).

Step 1: Establish Your Ground

Pick one strong ground. Listing four weak ones dilutes the case.

Step 2: Draft Formal Representations

Birmingham accepts representations within 28 days of the PCN issue date. Submit via the Birmingham PCN portal or by post to:

> Birmingham City Council

> PCN Processing

> PO Box 17226

> Birmingham B2 2RA

Skeleton:

```

[Your name and address]

[Date]

Birmingham City Council

PCN Processing

PO Box 17226

Birmingham B2 2RA

PCN reference: [from the notice]

Vehicle registration: [VRM]

Formal representations under regulation 5 of the Civil Enforcement

of Road Traffic Contraventions Regulations 2022.

1. I am the registered keeper of [VRM].
2. The PCN was issued for an alleged contravention of the Birmingham

CAZ-D requirements on [date].

1. The representations are made on the ground of [your single ground].
2. The factual basis is as follows: [3-5 numbered facts].
3. I attach: [exhibit list — V5C, manufacturer certificate, payment

confirmation, photos, etc].

1. I respectfully request that the PCN be cancelled.

Yours faithfully,

[Signature]

```

Step 3: If Birmingham Rejects — Escalate to Traffic Penalty Tribunal

The TPT for Birmingham CAZ cases is at trafficpenaltytribunal.gov.uk. Free, online, decided on the papers in most cases. 28-day window from the Notice of Rejection.

The TPT's published case summaries for Birmingham CAZ show consistent acceptance of properly-evidenced Grounds 1, 3 and 5. Grounds 4 and 6 succeed about half the time depending on quality of evidence.

Numbers That Matter

• Daily charge: £8 (cars / vans / LGVs), £50 (HGVs / buses / coaches)
• Payment window: up to 6 days after entry
• PCN amount: £100 (£50 within 14 days) for cars, £180 (£90 within 14 days) for HGVs
• Representations window: 28 days from PCN issue
• TPT escalation window: 28 days from rejection
• Total PCNs issued by Birmingham CAZ to date: ~2 million

Related Reading

• Bristol Clean Air Zone PCN Appeal
• Sheffield Clean Air Zone PCN Appeal
• ULEZ PCN Appeal Grounds 2026
• Single Code of Practice 2026 Rules