Scotland
Required standards for vehicles
Petrol vehicles must meet Euro 4 and diesel vehicles Euro 6 to enter without penalty.
Charges for non-compliant vehicles
No daily charges (non-compliant vehicles cannot enter without incurring a penalty).
Fines for non-payment
£60 fine (reduced to £30 if paid within 14 days) for a non-compliant vehicle, doubling with each repeat offense (capped at £480 for cars, £960 for HGVs).
Important information
All non-compliant vehicles (including private cars) will be fined for entering once enforcement begins (no daily charge payment option).