[3] ACT is also listed as evidence-based by the Substance Abuse and Mental Health Services Administration of the United States federal government which has examined randomized trials for ACT in the areas of psychosis, work site stress, and obsessive compulsive disorder, including depression outcomes.

[4] In the basic area, Relational Frame Theory is a research program in language and cognition that is considered part of contextual behavioral science, and is a focus of ACBS.

There are 45 ACBS chapters[9] covering many areas of the world including Italy,[10] Japan,[11] Belgium, the Netherlands,[12] Brazil, Australia/New Zealand,[13] France,[14] the United Kingdom, Türkiye, Malaysia, and more.

Chapters exist in the United States and Canada as well, including the mid-Atlantic, New England, Washington, Ontario, and several other areas.

The association's website contains resources such as therapist tools, workshops, metaphors, protocols, and assessment materials,[20] and provides information on recent books on acceptance and commitment therapy (ACT), Relational Frame Theory (RFT), and Contextual Behavioral Science (CBS).