This will vary from scheme to scheme, so please see the individual city or country. Use the city search on our homepage or many other pages.

For Schemes which require a Sticker (see FAQ How are the Schemes enforced?), you should leave at least 6 weeks before you wish to travel, to allow time for the sticker to arrive. In many countries you can also buy the sticker at the city offices or garage. However, you will need to get there without your vehicle first, if they are within the zone, and make sure that you bring your vehicle registration papers with proof of your vehicle emissions standard (see what emissions standards is my vehicle).

For schemes where registration is required before entry (see the FAQ Do I have to do anything before I enter the zone? Do I have to register before entering?), you need to allow enough time for the registration process. 

For urban road tolls / congestion charges, you can either pay before entering, or are sent a bill (Norway). You can often pay up to midnight of the day entered, but check on the individual city before you rely on this !