Legislation
Belgian Data Protection Act adopting the GDPR is the Law on the Protection of Individuals with regard to the Processing of Personal Data (Loi du 30.07.2018 relative à la protection des personnes physiques à l’égard des traitements de données à caractère personnel). Its text is available in English, Dutch and French.
Guidelines of the supervisory authority
Publications of the supervisory authorities are available on its official website (in English, Dutch, and French).