- © ulez.co.uk 2025 - All rights reserved.
- Powered by
- BREAKLINE
Not sure if your vehicle meets Portsmouth’s Clean Air Zone standards? Use our free checker! Just enter your registration number, and you’ll quickly find out if your car follows the city’s emission rules.
The Portsmouth Clean Air Zone checker helps you see if your vehicle meets the emission rules for entering Portsmouth’s Clean Air Zone. Here’s how it works:
Enter Vehicle Details: Provide your vehicle’s registration number
Check Emissions: The checker compares your vehicle’s emissions to the CAZ standards, which include limits on nitrogen dioxide (NO2) and particulate matter (PM).
Get Results: The checker will tell you if your vehicle meets the CAZ standards. If it does, you can enter the zone without extra charges. If it doesn’t, you might have to pay a daily fee or find other options.
The Portsmouth Clean Air Zone, launched in November 2021, aims to improve air quality in key areas of Portsmouth. It works by charging certain vehicles that don’t meet specific emissions standards.
Purpose: The zone is designed to reduce harmful pollutants in the air to protect the health of residents, workers, and visitors.
Standards: Vehicles with diesel engines below the Euro 6 standard or petrol engines below the Euro 4 standard will be affected.
Charges:
Visit the Portsmouth Clean Air Zone website for more details or support. This effort is part of a broader plan to reduce pollution quickly and ensure cleaner, healthier air for everyone.
When Portsmouth’s Clean Air Zone started in November 2021, some vehicles are exempt from charges. Here’s who won’t have to pay:
Private Cars: If your car meets the Euro 6 emission standard for diesel engines or the Euro 4 standard for petrol engines, you won’t face any charges. Newer, cleaner cars are free to drive in the zone.
Vans: Private vans that meet the Euro 6 standard for diesel engines or the Euro 4 standard for petrol engines are also exempt from charges.
Newer Commercial Vehicles: Commercial vehicles that meet the Euro 6 standard for diesel engines or the Euro 4 standard for petrol engines won’t incur any fees.
Fire Engines and Ambulances: These essential service vehicles are exempt from CAZ charges, as they are crucial for emergencies and public safety.
If you’re driving in Portsmouth and need to pay the Clean Air Zone (CAZ) charge, here’s a simple guide to help you through the process:
Visit the Central Government Clean Air Zones page. This is where you’ll handle your CAZ payments.
You can settle the CAZ charge up to 6 days before you enter the zone or up to 6 days after your entry. It’s important to pay within this window to avoid any penalties.
Follow the instructions on the website to make your payment. The process is straightforward, and you should have no trouble completing it online.
Remember you won’t receive a reminder about your CAZ charge. It’s your responsibility to ensure you pay the charge on time, so check your need to pay in advance.
If you paid in advance for a trip to the Portsmouth Clean Air Zone (CAZ) but decided not to go, you can get a refund. Here’s how to do it:
Ensure you apply for the refund because you didn’t enter the CAZ. You need to apply by 6 pm the day before your trip.
Have your payment details ready. The refund will be sent using the same payment method you used.
A £3 fee will be taken from your refund to cover processing costs.
Go to the Portsmouth CAZ Refund Portal and follow the steps to apply for your refund.
If you apply for a refund but still enter the CAZ with a non-compliant vehicle, you might get a Penalty Charge Notice. Make sure your refund is processed before you enter the CAZ.
Portsmouth caz Frequently asked questions