Reviews of treatment outcome literature indicate treatment integrity is not regularly assessed. In consultation, two levels of treatment integrity (i.e., consultant procedural integrity [CPI] and intervention treatment integrity [ITI]) provide relevant implementation data. Specifically, assessment of CPI and ITI are necessary to conclude (a) consultation is functionally related to consultee implementation behavior and (b) intervention implementation is functionally related to student outcomes. In this article, study characteristics and the presence of treatment integrity at both levels are examined in 21 studies utilizing Conjoint Behavioral Consultation, a model of consultation that includes multiple consultees. Results indicate that in approximately half of studies, CPI, ITI, or both are assessed and, when reported, treatment integrity is moderately high across both levels. However, there are distinct differences in the assessment and reporting of these levels of treatment integrity. Limitations and implications for consultation research and treatment integrity reporting are discussed.