The Brazilian Ministry of Education grants equivalence or recognition of qualifications, studies and diplomas of foreign education systems to Brazilian qualifications, studies and diplomas at basic and secondary education level.
For more information on the process, visit the webpage (in Portuguese) of the Ministry of Education.
For the diploma of graduation to be valid it must be revalidated by Brazilian public university that has the same or a similar course, recognized by the government.
NOTE: The Diplomas, the Certificates of equivalences or course conclusion fees have different range prices according to each school or higher institution.
You can check the legislation of the ratification of higher education diplomas at the Ministry of Education portal (in Portuguese).