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.
All documents listed in the OPT Application Checklist must be submitted to DCISS to request an OPT I-20 before an OPT application can be submitted to USCIS for processing. DCISS requires 5 business days to issue an OPT I-20. Complete the mandatory OPT Online Workshop available on the DCISS website.