“Curricular practical training (CPT) is defined to be alternative work/study, internship, cooperative education, or any other type of required internship or practicum that … is only available to F-1 students when it is an integral part of an established curriculum.”
“Optional Practical Training (OPT) is temporary employment that is directly related to an F-1 student’s major area of study. Eligible students can apply to receive up to 12 months of OPT employment authorization“.