The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
official legislative, administrative and judicial texts;
folk literary and artistic creations.
Item 2 also encompasses the national flag and coat of arms, the municipal flags and coats of arms, music of the anthem, urban planning maps, drawings of traffic signs, sketches and plans from the patent file after the official publication of the patent, and other similar material published due to a state jurisdiction as part of the official text, its annex or independently. (Upravljanje avtorskih in sorodnih pravic na Internetu - Vidik javnih inštitucij. Pg. 28.)
Therefore this file is assumed to be in the public domain worldwide.
This image shows a flag, a coat of arms, a seal or some other official insignia. The use of such symbols is restricted in many countries. These restrictions are independent of the copyright status.