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.
DHS allows STEM OPT students an additional 60 days of unemployment during the 24-month STEM OPT extension period. 1  This is in addition to the 90-day maximum period of unemployment that students are allowed during the initial period of post-completion OPT.