It is the text of a treaty, convention, law, decree, regulation, judicial decision, or other official enactment. (Law 9610/1998, art. 8)
It is a work whose authors' rights belong to the Brazilian government (federal, state, or municipal), for which the economic rights shall be protected for a period of 70 years from the first of January of the year following that of their disclosure or that of the author's demise, whichever is later. ([1])
Brasão do município de Barão de Antonina, estado de São Paulo, Brasil. Fonte: http://www.ngw.nl/int/bra/images/baraoant.jpg. Coat of Arms of the city of Barão de Antonina, São Paulo state, Brazil. Based on http://www.ngw.nl/int/bra/images/baraoant.