N.Y. Public Buildings Law § 141: Display of foreign flags on public buildings

§ 141. Display of foreign flags on public buildings. It shall not be

lawful to display the flag or emblem of any foreign country upon any

state, county or municipal building; provided, however, that whenever

any foreigner shall become the guest of the United States, the state or

any city, upon public proclamation by the governor or mayor of such

city, the flag of the country of which such public guest shall be a

citizen may be displayed upon such public buildings.