Manifestation determination reviews (MDRs) are a federally mandated procedure designed to protect the rights of students with disabilities. This study sought to examine practices and perceptions of the MDR process as held by school psychologists. One hundred thirty-six practicing school psychologists responded to a nationwide survey posted on various social media sites. The results revealed that school psychologists regularly engage in the process and view it as valuable in protecting the rights of students with disabilities. Despite lacking formalized training, school psychologists are viewed as holding relative expertise in the MDR process. Practice and policy implications are discussed, and we urge future research in this neglected topic area.