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 be driven in the zone without receiving a penalty).
Fines for non-payment
£60 Penalty Charge (reduced to £30 if paid within 14 days) for a non-compliant vehicle, doubling for repeat entries (up to a maximum of £480).
Important information
All non-compliant vehicles (including private cars) will be subject to fines once enforcement begins (there is no daily usage charge).