Effective immediately, all K visa applicants are required to complete the DS-160 Online Nonimmigrant Visa Application. The DS-160 replaces forms DS-156, DS-156K, and DS-230.
For K visa cases already in process at a U.S. embassy or consulate, the DS-160 is not required when, prior to October 7, 2013, one of the following situations exist:
We have provided consultation and completed some DoD H-1B cases. In one of these, the beneficiary was about to reach the six-year limit of his H-1B status, and changed to a H-1B2 in order to be eligible for an additional four years of stay. It appears USCIS itself is unfamiliar with H-1B2 visas. We often end up educating CIS on even the most basic legal issues in this area.