The frequencies reserved for the service are 87.5 FM, 87.7 FM and 87.9 FM, however, in some regions of Brazil, community radio stations are reserved in the frequencies 98.3 FM, 104.9 FM, 105.9 FM and 106.3 FM. The release of the frequency is only made by Anatel. The history of the Brazilian community is inclusive in a context of Brazilian redemocratization in the second half of the 1980s. In the struggle to institute the same, a movement began in 1991, organizing itself in the form of a forum, in 1994 the judiciary gave a vowable vote to the establishment of radios and their proponents to become legal. The largest city in the country, São Paulo because of the lack of frequency, managed to regulate these radio stations only in 2007 through a public notice. Currently are about 34 stations of the genre operating only in 87.5 mHz (different from the frequencies commonly used).