Two DOS cables instruct consular offices on Form DS-157, introduced in January, 2002. The DS-157 must be completed by all male nonimmigrant visa applicants between the ages of 16 and 45, regardless of nationality and regardless of where they apply. Consular officers have been given the discretion to require applicants outside this group complete the form on a case-by-case basis. AMDOC#: 200206018