Replying to How long canny stays in the system

ok since it seems like half of everyone on this site enjoys the wonderful substance i thought i'd come to you guys for a question. truly can anyone tell me how long pot stays in your system. i toke up in the summer and on vacations. but i don't know if i can on weekends. our school has weekly or biweekly drugtesting for people who drive cars or play sports (i do both) and our drug policy is strict as hell. i think you get supended for over 6 weeks. or even gettin expelled for the semester. but again can anyone tell me how long it stays in my system. cuz tokin up on the hill or after skiin gets no better