<ul><li><a href=https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32013R0952 target=_blank>Regulation (EU) No 952/2013 on the Union Customs Code(Regulation (EU) No 952/2013 laying down the Union Customs Code, OJ L 269, p.1, adopted on 10 October 2013, last updated on 30 September 2016)</a></li><li><a href=https://likumi.lv/ta/id/59902-par-valsts-ienemumu-dienestu target=_blank>About the State Revenue Service(Par Valsts ieņēmumu dienestu, adopted on 28 October 1993 1993, entering into force on 25 November 1993)</a></li></ul>