Since 2009, the Department of State has been phasing in a new, online visa application form at embassies worldwide.  The new DS-160 combines all previously used forms (DS-156, DS-157 and DS-158) for all nonimmigrant visa applications except Ks and Es.  DOS’s goal is to use the DS-160 exclusively worldwide by April 30, 2010.
Continue Reading Errors on New Electronic Visa Application (DS-160) Can Have Serious Consequences