Staten Island’s flag could soon become official under New York City law. 1388 to make Staten Island’s flag official in city law.” If the legislation becomes law, Staten Island would become the third borough to have its flag codified in the city’s Administrative Code. Brooklyn and the Bronx are the only boroughs whose flags are currently enshrined in city law, according to a City Council committee report. It wouldn’t be the first attempt to put a Staten Island flag into law.