The Albuquerque ARTCC is one of 22 Air Route Traffic Control Centers in the United States.
The primary responsibility is the separation of overflights, and the expedited sequencing of arrivals and departures along STARs (Standard Terminal Arrival Routes) and SIDs (Standard Instrument Departures) for the airspace over most of Arizona and New Mexico, as well as parts of Colorado, Oklahoma, and Texas.
Albuquerque Center is the 16th busiest ARTCC in the United States.
[1] ZAB covers an area that includes one class Bravo airport.
The vertical strata of these sectors vary greatly depending on the terrain, the geographic location covered, and the variety of traffic the controllers work.