The Rusumo One Stop Border Post Customs and Immigration as the name suggests, is a one-stop border crossing from Tanzania to Rwanda. This particular border crossing was mostly uneventful, but they did ask for the permit to bring live animals into Rwanda. We weren't aware of such a requirement, this was the first time anything like this had come up since the Southern African Customs Union. The customs official told us that he'd let us through this time but in future we were to visit the Department of Agriculture website and register with e-rabis. It would probably be unlikely that there would be a next time but we took note anyway.