Schaffer v. Weast,[1] 546 U.S. 49 (2005), is a Supreme Court case that determined that the burden of proof belonged to whoever challenged an Individualized Education Program (IEP).

Prior to Schaffer v. Weast, when any party challenged an IEP, the burden of proof was almost always placed on the respective school system.

After the case, Justice O’Connor stated that  “If parents believe their child's IEP is inappropriate, they may request an "impartial due process hearing."

that was created specifically for Brian – who suffers from learning disabilities and speech impairments – was not working in the best interest of their child.

The district court that heard the case presented by the Schaffer family, held that the Schaffer family was in the right and the school district needed to rectify the situation of providing the supports needed the ensure Brian received a fair and adequate education.