New York Consolidated Laws, Executive Law - EXC § 8. Registration of noncitizens

Whenever a state of war exists between the United States and a foreign country, or, in the judgment of the governor public safety or necessity requires such action, the governor may, by proclamation, direct every subject or citizen of such foreign countries as the governor may designate in such proclamation, who are in this state, or who may from time to time come into the state, to appear within twenty-four hours after the date specified in such proclamation or after arrival within the state, before such public authorities as the governor may designate in such proclamation, and personally register his or her name, residence, business, length of stay and such other information as the governor shall prescribe.  Such proclamation shall be published in such newspapers as the governor may designate.  Every person to whom such proclamation is applicable shall also comply with such rules or personal identification as the governor shall from time to time prescribe.  The occupant of every private residence, and the owner, lessee or proprietor, operating or managing every hotel, inn, boarding or rooming house shall, within twenty-four hours after the date specified in such proclamation, notify such public authorities of the presence therein of every subject or citizen of a foreign country to whom such proclamation is applicable, and shall each day thereafter notify such public authorities of the arrival thereat or departure therefrom of every such subject or citizen.  A failure to comply with any such proclamation or to perform any act required by this section shall be a misdemeanor, punishable by a fine of not exceeding one thousand dollars, or imprisonment for one year or both.