The resolution establishes the criteria for identification of groups with significant market power. The regulatory agency publishes, through acts, groups with SMP: http://www.anatel.gov.br/Portal/exibirPortalNivelDois.do?acao=&codItemCanal=1811&codigoVisao=$visao.codigo&nomeVisao=$visao.descricao&nomeCanal=PGMC&nomeItemCanal=Grupos%20detentores%20de%20PMS&codCanal=435