After the beginning of the late war. and especially after our participation in it. it was found necessary to make regulations in regard to the entry of foreigners into the country. and to the going out of our own citizens and others in this country. So on July 26. 1917. the Acting Secretary of State. Mr. Polk. and the Secretary of Labor issued a joint instruction to diplomatic and consular officers relating to the entry of aliens into the United States. This regulation required a passport and a visa. This order was issued for a proper defense of the United States in the late war and provided regulations. At that time. however. no provision was made for fees.