OBS_VALUE: <ul><li><a href=https://www.riigiteataja.ee/en/eli/ee/501042021002/consolide/current target=_blank>Railways Act(Raudteeseadus, RT I 30.10.2020 1, entry into force 31 October 2020, last amended 31 March 2021, Chapter 7)</a></li><li><a href=https://en.osjd.org/en/8910/page/106077?id=2099 target=_blank>Organisation for co-operation between railways (OSJD), Agreement on International Railway Freight Communications (SMGS)(Organisation for co-operation between railways (OSJD), Agreement on the International Goods Transport by Rail (SMGS), 1 November 1951, last amended in July 2016)</a></li><li><a href=http://www.otif.org/fileadmin/user_upload/otif_verlinkte_files/07_veroeff/02_COTIF_99/COTIF_1999_01_01_2011_e.pdf target=_blank>Convention concerning International Carriage by Rail (COTIF)(Convention concerning International Carriage by Rail (COTIF), adopted on 3 June 1999, last amended on 1 July 2006, appendix D)</a></li></ul>