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Registration for Annual Conference 2025 begins March 10th 2025 Annual MassABA ConferenceMay 9 2025Best Western Conference CenterMarlborough MA View MassABAs recently announced Position Statement on Diversity Equity Inclusion and Belonging Community News MassABA helps keep ABA professionals uptodate with the latest news and information. Membership Jobs Massachusetts Association for Applied Behavior Analysis The Massachusetts Association for Applied Behavior Analysis MassABA is a trade organization that represents the interests of behavior analysts in the state. Massachusetts has more BCBAs per capita than anywhere in America. As of March 2022 our commonwealth has more than 4500 BACB certificants.