This image has been released into the public domain by its author, E2m. This applies worldwide.
In some countries this may not be legally possible; if so: E2m grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
According to the BrazilianLaw on Industrial Property (Law 9.279 from May 14th, 1996; See translation), Chapter IV, Article 124, Brazilian official symbols are Public Domain because they can be copied and reproduced without any permission from the Brazilian government or anyone else unless they are being copied or reproduced with foul intentions.
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.