OPT ( Optional practical training Card ) is an identification card given by USCIS that represents your legal status after you graduate and before your H1B visa is approved. If you do not know what I am talking about check out article OPT vs CPT . Many are curious about OPT Card like how it looks, etc. Find the sample OPT Card below. Important things you have to look for is the dates and your personal information. OPT Card lets you only work, it is NOT valid for re-entry, you can see that clearly on the Card below.
Is there a CPT Card?
NO, there is nothing called a CPT (Curricular Practical Training) Card. When you are on CPT, all you get a new a new I20 from the DSO. For sample of new I20 when you move to CPT, check this article CPT Sample I20.