CPT Versus OPT: How the Two Work Authorizations Differ and When to Use Each
By Muntasir Minhaz • Published Aug 19, 2026
CPT is off-campus training tied to your degree curriculum, authorized directly by your school. OPT is temporary work in your field before or after you finish your degree, authorized by USCIS.
🎓 CPT requires a job that is a required or credit-bearing part of your program.
⏱️ CPT needs one full academic year of full-time study first, with an exception for some graduate programs.
📩 OPT needs a USCIS-approved Employment Authorization Document before you start work.
🛂 Post-completion OPT gives up to 12 months of work per degree level, plus 24 more months for STEM-eligible majors.
One year or more of full-time CPT removes your OPT eligibility at that same degree level.
CPT and OPT Cover Different Stages of Your F-1 Status
Curricular Practical Training (CPT) and Optional Practical Training (OPT) both let F-1 students work in a job related to their field of study. They serve separate purposes.
CPT covers training required by your degree while you are still enrolled. OPT covers work before or after you finish your program.
Both get recorded in SEVIS, the government's Student and Exchange Visitor Information System that tracks your F-1 status throughout your studies. Confusing the two, or using one when the rules call for the other, puts your immigration status at risk.
What Curricular Practical Training Covers
CPT is off-campus employment authorization for training that is an integral part of an established curriculum. Your school's Designated School Official (DSO) authorizes it directly on your Form I-20.
You do not file anything with USCIS. To qualify, the training must connect to a required course, a for-credit internship, or a cooperative education component of your program, and you need a job offer in hand before your DSO signs off, according to Study in the States .
You generally need one full academic year of full-time enrollment before you qualify for CPT. Graduate programs that require immediate participation in training are an exception, under 8 CFR 214.2(f)(10) . CPT is either part-time, 20 hours a week or less during the school session, or full-time, more than 20 hours a week or during an official school break.
What Optional Practical Training Covers
OPT is temporary employment authorization directly related to your major. Unlike CPT, OPT requires a USCIS-approved Form I-765 application and an Employment Authorization Document (EAD) before you start work, per Study in the States . OPT applies before you finish your degree, as pre-completion OPT, or after, as post-completion OPT, and you get up to 12 months total per degree level.
Apply for a 24-month STEM OPT extension if your major is on the STEM-designated degree list, described on the STEM OPT page . STEM OPT employers must be enrolled in E-Verify.
Side-by-Side Comparison
| Feature | CPT | OPT |
|---|---|---|
| Who authorizes it | Your school's DSO | USCIS |
| When you use it | While enrolled, tied to curriculum | Before or after graduation |
| Application needed | None, DSO updates your I-20 | Form I-765 plus EAD card |
| Job offer required first | Yes, before authorization | Not required to apply for post-completion OPT |
| Time limit | No fixed cap, tied to your program | 12 months per degree level, plus 24 for STEM OPT |
| Effect of full-time use | 12+ months full-time CPT removes OPT eligibility at that level | Does not affect CPT eligibility |
How Using CPT Affects Your OPT Eligibility
This detail catches students off guard. If you use 12 months or more of full-time CPT during one degree, you lose eligibility for OPT at that same degree level entirely, per Study in the States .
Part-time CPT does not count toward this limit, regardless of how long you use it. If your program includes a full-time required internship semester, track your CPT hours and talk to your DSO before you approach the 12-month full-time mark, especially if you plan to work in the US after graduation.
Use CPT more than once during your program if your curriculum calls for it, each time authorized separately by your DSO for a specific term or break. There is no cap on how many separate CPT placements you complete, only a cap on cumulative full-time hours before it affects OPT. Three semesters of a 15-hour-a-week part-time internship, for example, does not touch your OPT eligibility at all.
Applying for Each, Step by Step
The application paths look nothing alike.
For CPT
Secure a job offer that connects to a required course, internship, or co-op.
Confirm with your academic department that the position meets your program's requirement.
Submit your CPT request to your DSO with the employer's details, dates, and hours.
Wait for your updated I-20 before you start working.
For OPT
Request an OPT recommendation from your DSO, who updates your SEVIS record.
File Form I-765 with USCIS, along with the required fee and supporting documents.
Wait for your EAD card to arrive before you start working.
Report your employer through the SEVP Portal once you begin the job.
Timing Makes the Practical Difference
CPT authorization moves quickly because it stays inside your school. Your DSO reviews your job offer, confirms it fits your curriculum, and updates your I-20, often within days. OPT takes longer because USCIS has to receive, process, and approve your Form I-765.
Processing times change, so check current wait times before you plan a start date. Apply for post-completion OPT up to 90 days before your program end date and up to 60 days after, per Study in the States .
Which One Fits Your Situation
Use CPT when your program requires an internship, co-op, or practicum for course credit or degree completion, and your employer needs you authorized before your final semester. Use OPT when you want to work in your field after finishing your degree, or when you want work experience during your studies that is not tied to a specific course requirement.
Ask your DSO which option matches your circumstances before you accept an offer. Getting the authorization type wrong means working without status, which puts your SEVIS record and future visa applications at risk.