Over the last decade, Argentina embarked on a broad education reform, the Federal Education Law (LFE), being its main objective to expand access to basic education, mainly, by a new organization of the schooling level structure with the extension of mandatory schooling from 7 to 10 years. The provinces reactions were heterogeneous. We try to evaluate the relationship among the LFE and access and its quality. We found that LFE provinces tend to a bigger access probability induced in a bigger retention of individuals with smaller achievements and a bigger promotion for the youngest cohorts. To identifi the effect of its implementing we compute FGLS panel data estimates with fued effects for province and year. In all case we found a positive and significant effect of the LFE on access (0.04 and 0.013 for an additional year) and its quality. Also we found a positive sign but of unclear magnitude for the implementation on quality but when we estimate the effect of intensity the value of coefficient is more stable, around 0.02 or 0.03.