ATF Definition: Alien Admitted to the United States Under a Nonimmigrant Visa

Alien Admitted to the United States Under a Nonimmigrant Visa. An alien admitted to the United States under a nonimmigrant visa includes, among others, persons visiting the United States temporarily for business or pleasure, persons studying in the United States who maintain a residence abroad, and certain temporary foreign workers.  These aliens must "yes" to question 13.3.1 and provide the additional documentation required under question 13.3.2.  Permanent resident aliens and aliens legally admitted to the United States pursuant to either the Vis Waiver Program or to regulations otherwise exempting them from visa requirements may answer "no" to this question and are not requirement to submit the additional documentation under 13.d.2.  An alien admitted to the United States under nonimmigrant visa is not prohibited from purchasing, receiving, or possessing a firearm if the alien; (1) is in possession of a hunting license or  permit lawfully issued by the Federal Government, a State, or local government, or an Indian tribe federally recognized by the Bureau of Indian Affairs, which is valid and unexpired; (2) was admitted to the United States for lawful hunting or sporting purposes; (3) is an official representative of a foreign government who is accredited to the United States Government or the Government's mission to an international organization having its headquarters in the United States; (4) is an official representatives of a foreign government who is en route to or from another country to which that alien is accredited; (5) is an official of a foreign government or a distinguished foreign visitor who has been so designated by the Department of State; (6) is a foreign law enforcement officer of a friendly foreign government entering the United States on official law enforcement business; (7) has received a waiver from the prohibition from the Attorney General of the United States.

Excerpt taken from the ATF 5320.1 - ATF Form 1