“Designated instruction and services” (DIS) is California’s version of the term “related services.”  [5 C.C.R. Sec. 3051; Cal. Ed. Code Sec. 56363.]  California’s definition of DIS basically follows the federal definition of related services. A student’s entitlement to special education and related services is a right established under federal law and state law cannot be applied to deny services to which a child would be entitled under federal law.