a3 Herzberg Institute of Astrophysics, NRC Canada, Victoria, BC V9E 2E7, Canada email: Eric.Steinbring@nrc-cnrc.gc.ca
a4 UCO/Lick Observatory, University of California, Santa Cruz, CA 95064, USA
The NSF Science and Technology Center for Adaptive Optics (CfAO) is supporting a major scientific legacy project called the CfAO Treasury Survey (CATS). CATS is obtaining near-infrared AO data in deep HST survey fields, such as GEMS, GOODS-N, & EGS. Besides summarizing the main objectives of CATS, we highlight some recent imaging work on the study of distant field galaxies, AGNs, and a redshift z = 1.32 supernova. CATS plans the first data release to the community in early 2007 (check http://www.astro.ucla.edu/~irlab/cats/index.shtml for more details on CATS and latest updates).