Sample-based NLSA administered for the first time in 2013, with a second iteration in 2016 and a third one planned for 2019.
The NLSA benefits from the financial support of a pooled fund of donors and the technical advice of the Production Centre for the Support of Distance Learning at the Federal University of Minas Gerais in Brazil.
Previous experimentation with nationwide assessment during the 2000s (in years 2000, 2006 and 2009).