Bloomberg
The U.S. government makes only a certain number of immigrant visas (green cards) available each year and these are allocated among the various immigrant visa categories and countries from which applicants seek to immigrate. In all cases, the American airport officers make the final determination whether a foreign traveler can enter the U.S. or not. Foreigners can leave Armenia upon valid passport and a document validating their prior stay in Armenia if laws or international agreements of Armenia define no other term.
Bear in mind that the success for an extension of stay is solely at the discretion of the immigration officer attending to your application. However, visa clearance cannot be issued on a temporary passport. Some countries, including the Czech Republic , 114 require that an alien who needs a visa on entry be in possession of a valid visa upon exit.
For foreign citizens who want to live …