RANK IDLING: Cabbies and drivers warned over air-con idling fines as UK heatwave pushes temperatures higher
- Perry Richardson
- Jun 25
- 2 min read
Taxi drivers and other motorists looking for relief from soaring temperatures this week are being warned that sitting in a stationary vehicle with the engine running to power air conditioning systems could result in a fine for breaching vehicle emissions rules.
The warning comes from the RAC as the UK experiences exceptionally hot weather, with the Met Office indicating there is a strong possibility that existing June temperature records could be surpassed. While air conditioning offers a welcome escape from the heat, keeping an engine running unnecessarily while parked can lead to enforcement action from local authorities and police.
The issue is particularly relevant for taxi and private hire drivers, many of whom spend long periods waiting for passengers between jobs. During hot weather, drivers may be tempted to remain in their vehicles with the engine running to maintain a comfortable temperature. However, anti-idling regulations mean doing so could prove costly.
Under current emissions laws, drivers who leave engines running unnecessarily can be issued with financial penalties if they fail to switch off when requested by an authorised officer. The offence applies whether the driver is inside the vehicle or not. This means motorists who start their vehicles remotely or leave engines running to cool the cabin before a journey could also be at risk.
The standard enforcement route allows police officers to issue a £40 fixed penalty notice, reduced if paid promptly. Civil enforcement officers can issue penalty charge notices of £80, which are also subject to reductions for early payment. In some areas, councils have adopted higher penalty levels, with authorities including Westminster and Islington using powers that allow fines of up to £110.
For professional drivers, the situation can create a difficult balance between comfort and compliance. Taxi and private hire drivers often spend hours on ranks, at transport hubs or waiting for bookings during shifts that can extend well beyond eight hours. During periods of extreme heat, remaining cool inside a vehicle becomes a vital and can help drivers stay alert and comfortable throughout the working day.
The RAC’s warning also highlights the environmental impact of unnecessary engine idling. Stationary vehicles continue to emit exhaust gases and contribute to local air pollution, particularly in busy urban areas where councils have increasingly focused on air quality improvement measures.
Although the Government considered tougher action against engine idling several years ago, plans did not progress. In 2019, a consultation was expected to examine increasing penalties for drivers who leave engines running unnecessarily, but the proposal was never formally introduced.
With temperatures forecast to remain high across many parts of the UK, drivers are being encouraged to seek alternative ways to stay cool while parked, rather than relying on running engines and air conditioning systems for extended periods.
Rod Dennis. RAC senior policy officer, said: “Air conditioning is a game-changer in modern vehicles, making otherwise uncomfortable journeys by road a genuinely pleasant experience. We even advise those driving vehicles without air-con to consider delaying any non-essential trips this week until the heatwave passes.
“But while we’re all desperate to stay cool, just sitting in the car with the engine and air conditioning running and going nowhere isn’t advisable. Due to the air pollution this causes, you risk a fine from a police or civil enforcement officer.”
