In the US, the international students, who hold F-1 student visa can apply for Optional Practical Training (OPT) which allows them to stay back for one year after completion of the course, provided they work in their field of study. Students who hold a degree from the US government’s designated list of STEM (Science, Technology, Engineering and Mathematics) subjects can extend their OPT by another 17 months which allows them to work in the US for 29 months. During this period, students can find a permanent job and apply for long-term visa.
If you think that you want to stay and work in the United States after completing your undergraduate degree, make sure that you know your visa requirements and restrictions. Navigating the American immigration process is often stressful and confusing because there are as many visas as there are letters in the alphabet. The eligibility requirements and legal rulings are constantly changing, which does not make the process any easier.
After study student can apply for OPT as long as he’s on legal F1 status. The candidate’s employment must be related to his course of study. He must apply for OPT before the completion of all work (research papers etc.) towards the course he/she is studying. If he has done CPT or pre-OPT during study it will be deducted from OPT.