A full load is 12 credit hours per week (at the schools I attended in the US), but there were plenty of people who took more than that. At some schools the tuit

A full load is 12 credit hours per week (at the schools I attended in the US), but there were plenty of people who took more than that. At some schools the tuition caps out at a certain amount of credit hours (12 where I went) and you can take courses beyond that amount and it doesn't cost extra (in terms of money at least).