I called Tennis Warehouse a few weeks ago and inquired about how they measure racquet flexibility/stiffness and assign ratings (RA) given that most of the ratings they assign seem to differ from those listed by the actual racquet manufacturers.
What is Optional Practical Training (OPT)? Optional Practical Training (OPT) is the opportunity for an F-1 student to apply knowledge gained in the classroom to a practical work experience. OPT is a work permit allowing F-1 students to work in the U.S. for up to 12 months following graduation in a job related to their major.
If student has completed a full academic year: 90 days before OPT start date; There are three types of Pre-completion OPT: Type A: During the student's annual vacation. Student must intend to register for the next term; OPT may be part- or full-time; Type B: While school is in session. Student must be registered full-time; OPT may be part-time only