This nonimmigrant classification applies to people who wish to perform services in a specialty occupation, services of exceptional merit and ability relating to a Department of Defense (DOD) cooperative research and development project, or services as a fashion model of distinguished merit or ability.
My status: on H1, visa expiring in September 2007. Rajiv's team applied for my H1 extension and I had I797 approvals till 2010. I had an H4 extension approval done for my wife as well. There is no employer change from first 3 years on H1 to second approval.