H-1B Cap-Gap Extension
H-1B is a work visa that is sponsored by an employer. Students commonly transition from Optional Practical Training (OPT) authorization, part of F-1 status, to H-1B status. There are a limited number of H-1Bs available each fiscal year, for most employers, and this limit is often called the "H-1B cap."
New H-1Bs become effective each October 1, but the application period for most employers begins six months earlier, April 1. The "cap gap" occurs when a student's F-1 status and/or OPT expire before their approved H-1B begins October 1.
The H-1B Cap Gap Extension allows certain students with pending or approved H-1B petitions to remain in the U.S. in F-1 status until the start date of their approved H-1B employment period, even if the OPT authorization and/or F-1 grace period would have otherwise expired before October 1.