is used for educational institutions owned by the federal, state, or city governments which do not charge tuition. Such schools exist in all levels of education, from the very beginning through post-secondary studies. Mexico has nine years of free and compulsory primary and secondary education.

Panama has 11 years of compulsory education, from pre-kindergarten to 9th grade, with children first entering at four or five years old and parents are required by law to give financial support to their children