"2.2.1" . "stable" . "Unique siding identification or number within an Operational Point.\nIN https://eur-lex.europa.eu/eli/reg_impl/2019/773/oj 2.2.1 Indication of running lines, loops catch/trap points and access to sidings."@en . . . . "1.2.2.0.0.2" . "OPSidingIdentification" . "Identification of siding"@en . . . . "2021-09-13"^^ . . "2.2.1.4" . "2023-03-14"^^ .