The alternating gradient synchrotron (AGS) is a synchrotron for the acceleration of protons and heavy ions to tens of GeV amu(-1) for fixed target physics research. The relativistic heavy ion collider (RHIC), with the AGS as its injector, allows the collision of heavy ion beams with several hundred GeV amu(-1). The vacuum systems of the AGS-RHIC complex range from 10(-6) torr in the ion sources to the ultrahigh vacuum of low 10(-11) torr in the Booster and RHIC. The status of the machines will be described with emphasis on the following areas: the performance of the Booster ultrahigh vacuum system, the development of non-magnetic vacuum components for the muon storage ring, and progress in the construction of the RHIC vacuum systems. [References: 16]
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