Purpose and Scope of the Bulletin
This Bulletin provides an update on the status of IAP implementation in the four sites. It begins with a brief overview of the IAP model and describesusing a cross-site approachhow the sites have implemented various aspects of the model. For a fuller description of the model, see Altschuler and Armstrong (1994).3 The Bulletin also assesses the extent to which implementation has been successful, both with respect to the specific components and the overall model. Finally, a series of factors that facilitated or impeded program implementation are identified. This Bulletin is an interim report, reflecting developments during approximately the first 3 years of implementation (through December 1998).4 The sites will continue implementation at least through mid-2000.