This article aims to present some of the research developed since the public availability of Acervo Celpe-Bras. Launched in 2014, Acervo compiled and made available past tests, manuals, legislation and academic research about Celpe-Bras, allowing new investigations to be conducted about the exam. Among the research made possible by Acervo are the description and categorization of the Written Part tasks of the exam, which provides resources for new Celpe-Bras specifications (Schoffen et al.,

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... ). Based on this description, a test preparation course was produced, which considers, in order to propose didactic sequences, the most recurrent characteristics of the tests. The research projects developed since the launch of Acervo consolidate it as a milestone in the history of the exam by promoting a more democratic access to the materials of Celpe-Bras for teachers, test takers and researchers interested in teaching, learning and assessing Portuguese as an Additional Language.