Although functional behavioral assessments and behavior intervention plans (FBA-BIP) are standard practices for students with disabilities, the research base on the nature of FBA-BIPs is limited as most record reviews were conducted before 2010. We examined key compliance components of FBA-BIPs for 304 students with disabilities in one large U.S. local education agency, including demographic differences in FBA-BIP adequacy, and whether two key components could predict FBA-BIP quality. Results indicated variability in the quality rating of key FBA-BIP components and differences in FBA-BIP adequacy by grade level. Furthermore, strong associations were found between the overall quality of the FBA-BIP and the function of behavior as well as whether strategies were matched to the function. We discuss limitations, future research, and implications for professional learning and development.