Positive Behavior Support (PBS), first piloted in ¹û¶³´«Ã½app Independent School District (AISD) in 2003–2004, is a systems approach to the prevention of problem behavior and the improvement of students’ academic performance. In Fall 2010, the district PBS program was implemented at 81AISD campuses, and staff at one additional campus were preparing for implementation. Working with AISD PBS specialists, campus staff used data to problem solve and monitor strategies for change. Strategies ranged from universal interventions, implemented across all students, staff, and settings, to intensive interventions for individual students with high needs. This research brief describes levels of PBS implementation in October 2010; campus participation in district training; and services provided to campuses by district PBS specialists during Fall 2010, which was the last semester during which district support was available for campus implementation of PBS.