Government of New York City are designated jointly by the five county executive committees of each party. In most cases, insurgents who are party members can challenge party-designated candidates by petitioning for a primary election. The Brooklyn Public Library and Queens Public Library are public library systems within their respective boroughs. The New York Public Library is a private, non-governmental library serving the Bronx, Manhattan, and Staten Island, that receives government funding. The New York City Housing Authority (NYCHA) provides public housing for low- and moderate-income residents. NYC Health + Hospitals (New York City Health and Hospitals Corporation, or HHC) operates public hospitals and clinics.
Flags of New York City to which is added an arc of five five-pointed stars (representing each of the five boroughs) in blue above the seal. The dimensions of the Mayor's flag are set at 33 inches by 44 inches. The New York City Council uses a variant of the city flag, with the word "COUNCIL" underneath the seal. Currently, only Brooklyn and the Bronx have official borough flags. The other three boroughs have standard designs in current use, though they have never been officially adopted. Staten Island borough lawmakers pushed to have their flag officially recognized by the state in the 1990s and early