New Orleans' government is largely centralized in the city council and mayor's office, but it maintains earlier systems from when various sections of the city managed their affairs separately. For example, New Orleans had seven elected tax assessors, each with their own staff, representing various districts of the city, rather than one centralized office. A constitutional amendment passed on November 7, 2006 consolidated the seven assessors into one in 2010. The New Orleans government operates both a fire department and the New Orleans Emergency Medical Services.