Some non-profit, research and educational institutions are able to secure H-1Bs not subject to the yearly quota of 85,000. Citizens of Chile and Singapore, through a treaty with the U.S., are provided with a special allocation of 6,800 visas; as a result, these citizens have an easier time securing U.S. work authorization. H-1B1 is given in one year increments, eligible for renewal indefinitely.
In April 2008, a new law was established to enable those with an approved H-1B application to remain employed during the transition period between the end of OPT and the start of H-1B. The new regulation eliminates any gaps in employment previously experienced in the transition from OPT to H-1B if the H-1B petition is timely filed while the student is still in their approved period of OPT employment, and the H-1B petition is filed with a change of status application effective October 1.