careful

1. off-campus cpt can be full-time (>20 hrs per week) only during school is close e.g.summer.
2. if you work full time cpt for certain months you will lose OPT. I don't remember how many months will make OPT void. make sure you do not exceed
3. DSO needs to authorize cpt on your i-20. I am not aware of any law that says you cannot work 80 hours per week but your i-20 would look very weird - it would have two 40 hours cpt authorization overlapping in time