This 5-year multisite mixed-methods evaluation study chronicles the field-testing of the planning process Guidelines for Selecting Alternatives to Overreliance on Paraprofessionals in 26 schools (Grades K-12) in six states. Evaluation of the utilization and outcomes of the guidelines process was based on data from 472 study participants. Findings highlight (a) reasons why schools decided to utilize the process; (b) self-assessment ratings, selected priorities, and actions pursued by the schools; (c) consumer feedback; and (d) the impact of the guidelines process in the schools. Primary areas of impact included changes in special educator caseloads and paraprofessional utilization, extension of inclusive opportunities, and improvement in classroom collaboration and practices. Implications for schools and future research are discussed. (Contains 2 tables and 1 figure.)