This study investigated the impact of a multicomponent training program on the American School Counselor Association's National Model of school counseling. The model was designed to enhance school counselors' competence in implementing a comprehensive school counseling program. An ABA single case design was used to collect baseline, training, and post-training data. The participants (n = 3) were pre-ASCA-trained school counselors with 15 years or more of school counseling experience. All exhibited growth during the training phase, which was sustained through the post-training phase.