
A Green Card is the international motor insurance certificate that lets a Montenegro rental car cross certain Balkan borders. Renting a car in Montenegro to drive to Albania or Kosovo, the Green Card is required and is included automatically when you choose those destinations at booking; the EU and Switzerland tier carries one as well. Croatia, Bosnia, and Serbia do not need a Green Card. Here is how it works and what it costs.
A Green Card is the internationally recognised certificate proving your vehicle has the minimum required third-party liability insurance. It is required when driving in countries not covered by the standard EU motor insurance directive.
Across the Balkans, the Green Card is what proves your insurance at borders outside the standard EU directive. From Montenegro, two of the five cross-border destinations require it: Albania and Kosovo. Croatia, Bosnia, and Serbia are covered under the directive, so no Green Card is needed for those three.
You do not need to organise a Green Card yourself. When you choose Albania or Kosovo as your destination at booking, the rental company automatically includes the Green Card in your documentation. It is part of the Tier 2 cross-border cover.
The Green Card is provided at pickup with your rental agreement. Keep it with you for the entire trip; border officials in Albania and Kosovo may ask to see it.
Not for a rental car. Private drivers can sometimes purchase a Green Card at a Montenegrin border crossing, but rental cars work differently: the cross-border cover and Green Card have to be arranged when you book. They cannot be added after pickup or at the checkpoint, so if you leave Montenegro without them confirmed on your booking, you will not be allowed to cross in the rental car.

Always select the cross-border destination at booking, not at pickup. The cross-border cover is linked to your specific booking and cannot be transferred or added retrospectively.
No. A Green Card is a proof document, not an insurance policy. It certifies that your existing third-party liability insurance meets the minimum legal requirements of the destination country. Your full rental insurance terms remain in effect; the Green Card simply proves compliance at the border.
For a rental car you do not pay for the Green Card separately. On the Tier 2 routes to Albania and Kosovo, and on the wider Tier 3 EU and Switzerland route, it is bundled into the cross-border fee you select at booking. The exact figure appears in the booking step before you pay and varies by destination and car, so there is no separate Green Card charge to settle at pickup or the border.
Whether a Green Card applies comes down to the tier of your route. Albania and Kosovo are Tier 2, where the Green Card is included, and the EU and Switzerland route is Tier 3 and carries one too. Croatia, Bosnia, and Serbia are Tier 1, covered by the standard insurance directive, so no Green Card is needed.