Article Comparison - Charter of the Organization of American States
The Member States will exert the greatest efforts, in accordance with their constitutional processes, to ensure the effective exercise of the right to education, on the following bases:
a) Elementary education, compulsory for children of school age, shall also be offered to all others who can benefit from it. When provided by the State it shall be without charge;
b) Middle-level education shall be extended progressively to as much of the population as possible, with a view to social improvement. It shall be diversified in such a way that it meets the development needs of each country without prejudice to providing a general education; and
c) Higher education shall be available to all, provided that, in order to maintain its high level, the corresponding regulatory or academic standards are met.