Analysis of information sources in references of the Wikipedia article "Privileged transit traffic" in English language version.
Negotiations between the two parties resulted in the implementation of measures to take into account the specificity of the enclave from 2002 onwards. These include ... Rail Transit Facilitation Document (FRTD) issued upon the purchase of a train ticket ... Since the entry of Poland and Lithuania into the Schengen area in December 2007, the issuance of free multiple visas has ceased.
