This report reviews the "Social Skills Improvement System Social-Emotional Learning Edition" (SSIS SEL; Gresham & Elliott, 2017), a multicomponent rating scale that includes a criterion and norm-referenced measure of social-emotional and academic functioning--based on a reformulation of the "Social Skills Improvement System" (SSIS; Gresham & Elliott, 2008). Both measures can be used to assess the five social-emotional core competencies outlined by the Collaborative for Academic, Social, and Emotional Learning. Practitioners could utilize this scale to universally screen for social-emotional difficulties and progress monitor throughout the year. For students identified as at-risk based on the screener, practitioners can use these scales as part of a multimethod, multisetting, multirater psychoeducational assessment process. This measure includes the same social-emotional competency domains as those on the screening/progress monitoring scale, which can be used to form the SEL composite. The SSIS SEL includes the assessment manual, intervention program manual, screening/progress monitoring forms, and parent and/or teacher and/or student forms. The author concludes that it would be beneficial for practitioners if more up-to-date normative data and additional reliability data were presented for both the screening/progress monitoring scale and parent, teacher, and student forms. These additions would provide more support for a recommendation of the use of the SSIS SEL for assessing and monitoring social-emotional competence in K-12 students.