Specialized instructional support personnel (SISP) are part of a multidisciplinary education team that provides a wide range of school-based prevention and intervention services to help students become effective learners and productive citizens. They work with teachers, principals, and parents to ensure that all students are successful in school. Other school districts may call them something else, but SISP have been defined in federal education statutes for many years. In the Elementary and Secondary Education Act, currently known as the No Child Left Behind Act, they are known as "pupil services personnel." IDEA identifies them as "related services" personnel. Such differences in terminology cause confusion for school leaders, even though they refer to the same services. The School Social Work Association of America has worked to establish one common statutory term to minimize this confusion and more accurately reflect the nature and purpose of the services those professionals provide to students in schools. The pending legislation to reauthorize ESEA in both the US House and the Senate will officially change the term to SISP in federal law. The term "specialized instructional support personnel" emphasizes that the people in the positions are educated and trained to provide highly specialized services, and it acknowledges that those services and interventions support students, teachers, and principals; promote better learning outcomes and improved instruction; and help students achieve college and career readiness. This article describes in more detail many ways in which SISP are trained to help school personnel design school-wide programs and policies to promote a positive climate for learning and to address the larger issues students may be experiencing.