New York metropolitan area eight subregions are often further divided. For instance, Long Island can be divided into its South and North Shores (usually when speaking about Nassau County and western Suffolk County) and the East End. The Hudson Valley and Connecticut are sometimes grouped together and referred to as the Northern Suburbs, largely because of the shared usage of the Metro-North Railroad system. The geographical, cultural, and economic center of the metropolitan area is New York City, which consists of five boroughs, each of which is also a county of New York State. The five boroughs – Brooklyn, Queens, Manhattan, the Bronx, and
New York City Department of Education itself made no specific reference to a "Department of Education of the City of New York", the bylaws subsequently adopted by the Board provided that the 13-member body "shall be known as the Panel for Educational Policy", which together with the Chancellor and other school employees was designated as the "Department of Education of the City of New York". The education headquarters were moved from 110 Livingston Street in downtown Brooklyn to the Tweed Courthouse building adjacent to New York City Hall in Manhattan. In 2003, the districts were grouped into ten "regions", each encompassing several elementary and middle school