--- - |2 Abstract Objective The CAMS Rating Scale (CRS) is an adherence measure for the Collaborative Assessment and Management of Suicidality (CAMS), a suicide‐specific clinical intervention. This study examined the ability of the CRS to assess adherence to CAMS. Methods Video‐recorded therapy sessions of clinicians delivering either CAMS or Enhanced Care‐As‐Usual (E‐CAU) were rated with the CRS. These ratings (N = 98) were used to evaluate criterion validity, internal consistency, and factor structure. Results Criterion validity and factor analyses did not support the organization of the CRS into its current subscales. Furthermore, the identified factor model and item‐level statistics revealed weak CRS items. Finally, internal consistency was higher among CAMS clinicians than among clinicians delivering E‐CAU. Conclusion These results establish the CRS as a measure that can effectively assess the adherence to CAMS in its current form. Potential revisions to future iterations of the CRS are discussed. - Journal of Clinical Psychology, EarlyView.