Please use this link to access this publication. Abstract Background Two scientific and clinical challenges for treating cannabis use disorder (CUD) are developing efficacious treatments with high likelihood of uptake and scalability, and testing the clinical mechanisms by which treatments work. Because young adults experience more CUD than other age groups, a need exists to test the efficacy and hypothesized causal pathways of novel treatments for CUD. Text-delivered treatments have the potential to reach young adults by increasing access and perceived privacy. Methods We conducted a randomized clinical trial (n = 1078) of a 4-week CUD treatment with U.S. young adults from Colorado and Tennessee. Participants...