Rogério Fernandes Ferreira was invited to integrate the panel of speakers in the "XII International Congress on Tax Law". This congress is promoted/ organized by the Instituto Pernambucano de Estudos Tributário - IPET (The Institute of Tax Studies of Pernambuco) and the Centro de Estudos Avançados de Direito Tributário e Finanças Publicas do Brasil - CEAT-Brasil (Advanced Centre of Tax Law and Public Finance of Brasil) between 26 and 28 of September, and it counts on important Brazilian and Portuguese Tax Lawyers.