The Libero-Tarifverbund is a Swiss tariff network covering the canton of Bern and the southwestern part of the canton of Solothurn. It was established in December 2004 from the merger of the Bäre-Abi and Frosch-Abo tariff networks.[1] The Zig-Zag network merged into Libero in 2014. With the merger of the Tarifverbund Berner Oberland ("BeoAbo"), covering the Bernese Oberland, in December 2019, the network covers the entire canton of Bern.[2]
The network is divided into three types of zones:[3]