Noise cameras are set to play a bigger role in tackling excessively loud vehicles on UK roads. In the article, AutoTrader explains that noise cameras work in a similar way to speed cameras. Instead of speed sensors, they are fitted with a microphone alongside an Automated Number Plate Recognition (ANPR) system. When a vehicle exceeding permitted noise levels passes the device, the microphone activates and the ANPR system captures the registration plate of the vehicle.
The technology is designed to distinguish engine noise from other sounds such as horns or music. By analysing sound patterns, the system can determine whether the excessive noise is coming from a vehicle’s engine or exhaust, reducing the risk of drivers being penalised for unrelated loud sounds nearby.
Once a vehicle is flagged, a report is sent to the police. Officers can then decide what action to take, which could include prosecution or issuing a fine according to the article published by AutoTrader
What Is the Legal Exhaust Noise Limit in the UK?
AutoTrader states that the legal sound limit for all new cars is currently 72 decibels (dB). Vehicles manufactured from 2016 onwards must comply with this threshold. The limit is set to become even stricter. From 2026, the permitted noise level for new cars will reduce to 68 dB.
The article highlights how regulations have tightened significantly over the years. Back in 1987, the maximum limit stood at 82 dB. This was reduced to 72 dB in 2016, with a further reduction planned for 2026. These regulations apply Europe-wide and form part of ongoing efforts to reduce noise pollution.
DM News Commentary
Noise complaints aren’t just about “boy racers” with modified exhausts — they often impact residents, shift workers, and city centres where taxis and private hire vehicles operate daily.
For professional drivers in the taxi and PHV trade, this shouldn’t cause concern — as long as vehicles remain standard and road legal. However, drivers using modified exhaust systems, even if they believe them to be compliant, may want to double-check their setup before noise camera enforcement becomes more widespread.
With tighter limits coming in 2026, vehicle compliance is clearly heading in one direction: quieter.
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