In previous work (Chaplin and Capizzano 2006), we evaluated a summer learning intervention that receives both federal and private funding, the Building Educated Leaders for Life (BELL) Accelerated Learning Summer Program. That study found the program to be effective using the gold standard of research methods, random assignment. This observation and interview-based process study details BELL's activities during the summers of 2004 and 2005. It examines whether program components were implemented with fidelity (i.e., as they said they would be in program documents) and describes implementation issues that may affect whether the BELL program can be replicated in other sites.