What does Optional Practical Training “OPT” mean?

Optional Practical Training (OPT) is temporary employment directly related to an F-1 student’s major. Eligible students can apply for up to 12 months of OPT employment authorization both before (pre-completion) and after (post-completion) finishing their academic studies. However, any time spent in pre-completion OPT will reduce the amount of post-completion OPT available. Off-campus employme