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])
Colocando de acordo com as placas https://commons.wikimedia.org/wiki/File:BRs-101-PB.jpg<br />https://www.google.com.br/maps/@-22.662784,-43.363227,3a,27y,294.83h,77.97t/data=!3m4!1e1!3m2!1svgR8mN0YuEwoCDiO8rW-yA!2e0