Laws have to be published in the Official Gazette, which is in electronic form and freely accessible.While neither the Official Journal Act, nor the National Assembly Rules of Procedure explicitely provide for 15 days period before published laws enter into force, the website of the National Assembly indicates that laws enter into force on the fifteenth day after its publication, unless otherwise determined in the act itself. See also: Website of the National Assembly, Legislative Procedure https://www.dz-rs.si/wps/portal/Home/deloDZ/zakonodaja/ZakonodajniPostopek