Crowley Broadcast Analysis is an official institution of research, which monitors the radios in Brazil since 1992. Currently, the company provides data to the Escritório Central de Arrecadação e Distribuição (ECAD) and the Pro-Música Brasil and besides being the standard for the Phonographic Industry in the country.[1] In August 2009, it also exclusively started providing the charts for Billboard Brasil that is based on grid-base radios with 250 stations surveyed in ten cities.[2]