the main document showing authorization to work in rio de janeiro and brazil is called carteira de trabalho e previdência social - ctps, and it is issued by the delegacia regional do trabalho - drt, located on Avenida Pres. Antônio Carlos, 251, Centro, Rio de Janeiro.

otherwise known as a 'work card' or 'labor card', the ctps is a physical book, similar to a passport, except green for foreigners, which holds general information and employment history about the employee, as each job is recorded within the book, as well as wages, holidays, and jobs performed.

the ctps, along with an appropriate visa, is a mandatory component for obtaining employment, as it officially registers the employment, while also granting the employee access to the labor rights of the country. 

the rights granted to the worker via the ctps include unemployment insurance, social security benefits, fundo de garantia do tempo de serviço - fgts, and programa de integração social - pis.