Area Control Center - FAA Definition

FAA Definition

The United States Federal Aviation Administration defines an ARTCC as

facility established to provide air traffic control service to aircraft operating on IFR flight plans within controlled airspace, principally during the en route phase of flight. When equipment capabilities and controller workload permit, certain advisory/assistance services may be provided to VFR aircraft.

An ARTCC is the U.S. equivalent of an Area Control Center (ACC).