The Advanced Camera for Surveys (ACS) is a third generation instrument forthe Hubble Space Telescope (HST). ACS features three imaging cameras, awide field channel (WFC), a high resolution channel (HRC) and a solar blindchannel (SBC). The WFC is optimized for the near-IR and offers a 203"x203"field of view, 0.05" sq. pixels, and spectral response from 370 nm to 1100nm. The HRC is designed for critically sampled imaging in the visible with0.033" sq. pixels, a field of view of 32"x36" and spectral response from200 nm to 1100nm. The HRC also offers the option of an aberrated beamcoronograph. The SBC is designed for far-UV imaging from 115 nm to 1700 nmand offers a 30" x 30" field of view with 0.029" sq. pixels. ACS iscurrently scheduled for launch in the June 2001 HST servicing mission. Inthis paper we will describe recent progress in the testing and integrationof ACS, and update the astronomical community on the expected performanceof ACS, which will be available in the HST Cycle 10 Call for Proposals.