Wales doubles down: £150 fines for idling drivers from September 30

Welsh motorists face a sharp increase in penalties for leaving engines running while parked, with fines rising to as much as £150 from September 30. The move, announced by the Welsh Government, is the latest in a series of sweeping motoring regulations to come out of Cardiff, following the controversial 20mph default speed limit introduced in 2023.

Under the new rules, local authorities will be able to issue Fixed Penalty Notices (FPNs) ranging from £75 to £150 for stationary idling, a significant jump from the current £20 fine, which doubles to £40 if unpaid within a specified timeframe. The previous Welsh Government began the process of increasing the penalties before leaving office.

Why is the Welsh Government targeting stationary idling?

Officials argue that the measure is necessary to cut harmful emissions at critical sites, particularly around schools, hospitals, and care homes. The government claims that every minute a car engine runs while stationary, it produces enough exhaust to fill up to 150 balloons with pollutants, including cyanide, nitrogen oxides (NOx), and fine particulate matter.

In a statement, the Welsh Government said:

“Tackling Stationary Idling can reduce avoidable emissions at the point of exposure and help protect the most vulnerable and affected groups and communities, particularly around schools, care homes, and other areas where people are most at risk.”

Where will the new idling fines apply?

Enforcement will focus on what officials describe as “high risk locations.” These include:

• Areas outside schools, especially during drop-off and collection times
• Hospitals, GP surgeries, and care homes
• Other healthcare facilities

However, the rules could apply anywhere on public roads, from fast food drive-through restaurants to level crossings.

What are the exceptions to the idling rules?

Motorists will not be penalised for idling in certain circumstances. The exemptions include:

• When stationary due to traffic conditions, such as at traffic lights, in queues, or in congestion
• When powering essential equipment, such as on-board systems in emergency vehicles or refrigeration units on lorries
• When the vehicle is on private land with restricted public access
• When the engine needs to be running for maintenance or diagnostic purposes

While demisting or de-icing windscreens is not an official exemption, the government advises councils to “exercise pragmatism” in such cases.

Will drivers be given a warning before being fined?

Yes. Enforcement officers are instructed to speak to drivers before issuing any penalty. The guidance states that officers should identify themselves, explain that an idling offence is believed to be taking place, and request that the driver switches off the engine.

If the driver complies, or simply drives away, no offence has taken place and an FPN cannot be issued. Only if the driver refuses to comply can a fine be issued.

What happens to the money raised from idling fines?

Any income generated from the fines must be allocated exclusively towards the enforcement and administration of stationary idling violations, as well as initiatives that support air quality improvements and reduce public exposure to transport emissions.

The Welsh Government added:

“Although often invisible, air pollution has profound and far-reaching impacts on health and wellbeing. It contributes to premature death and reduces quality of life with effects linked to low birth weight, childhood asthma, heart disease, stroke, dementia, and mental health conditions.”

Critics may question whether this latest regulatory push represents sensible public health policy or yet another example of Cardiff imposing burdensome rules on hard-pressed motorists. Either way, Welsh drivers would be well advised to switch off their engines when parked from the end of this month.