This image of road traffic sign is from the mandatory National Standard of the People's Republic of China GB 5768, Road traffic signs and markings. Per 权司[1999]第50号 issued by the National Copyright Administration, mandatory standards are technical standards with legal natures, so the copyright protection is inapplicable pursuant to Article 5 of the Copyright Law of the People's Republic of China.
The use of the symbol shown in this image is regulated by certain international treaties, particularly the Hague Conventions of 1899 and 1907, the Geneva Conventions of 1949 and their additional protocols of 1977 and 2005, as well as other rules of International Humanitarian Law either in written agreements or by long-standing customs. Misuse of this symbol is prohibited by these treaties as well as by national law in all countries which have ratified them. These restrictions are independent of the copyright status of the depiction shown here.
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