If you’re an international student on an F-1 visa, you’ve probably heard both terms thrown around. OPT and CPT sound similar, they both let you work legally in the U.S. during or after your studies, and mixing them up can cost you months of eligibility down the line. Here’s the difference, in plain English.
The short answer
CPT (Curricular Practical Training) is work authorization for while you’re still enrolled, tied directly to your degree program, like a required internship or co-op. OPT (Optional Practical Training) is work authorization for during or after your program, and it isn’t tied to a specific class or credit requirement. Most students use CPT for internships during school and save OPT for after graduation, when they’re job hunting or starting full-time work.
CPT: for internships that are part of your program
CPT applies if your internship is built into your curriculum, meaning your school requires it for your degree, or you’re enrolled in a course that grants academic credit for it. A few things worth knowing:
- Your Designated School Official (DSO) authorizes CPT, not USCIS, so it’s usually faster to get approved than OPT.
- You need a job offer before you apply. CPT authorization is tied to a specific employer and specific dates.
- If you use CPT full-time (over 20 hours a week) for 12 months or more, you lose eligibility for OPT entirely. Part-time CPT doesn’t count against you, so pace yourself if you’re juggling multiple internships.
OPT: for the transition into the real world
OPT is the one most students really care about, since it’s what lets you work in the U.S. after graduation without needing an employer to sponsor a visa right away. A few key points:
- You get 12 months of OPT per degree level. If you’re a STEM major, you can apply for a 24-month extension, giving you up to 36 months total.
- Unlike CPT, OPT isn’t tied to a single employer. You can change jobs during your OPT period, as long as the work relates to your field of study.
- USCIS processes your OPT application, and it can take a few months, so timing matters. Apply too early and you’ll waste eligibility. Apply too late and you risk a work gap after graduation.
The mistake we see most often
Students take on a full-time “internship” senior year, call it CPT, and don’t realize they’ve quietly burned through their 12-month full-time threshold. Then they graduate and find out they no longer qualify for OPT at all. This is fixable if you plan ahead. Talk to your DSO before agreeing to any internship that involves more than 20 hours a week, and get it in writing how it will be classified.
Bottom line
CPT gets you real-world experience while you’re still a student. OPT is your bridge into a full-time career afterward. Neither one waits for you to figure it out on the fly, so the earlier you understand how they connect, the more options you’ll have at graduation.
This article is educational and not a substitute for advice from your school’s international student office or a licensed immigration attorney.
Our Real World track walks through OPT, CPT, and the U.S. job search step by step, with a coach who’s navigated the same process. Get in touch if you want help figuring out which one applies to you.