Public Law 94-142, the Education for All Handicapped Children Act, defines "handicapped children," specifies the criteria that must be met before children are eligible for special education, and identifies the "related services" that handicapped children may be eligible to receive. Section 504 of the Rehabilitation Act Amendments of 1973 also treats the provision of "related services" to handicapped children. Neither law, however, provides a conclusive definition of or precise regulations for delivering these related services. Considerable litigation has arisen as a result. This paper discusses cases, decisions, and memoranda pertaining to related services, noting where issues were resolved and where new issues were raised. Opinions handed down by the Bureau for Education of the Handicapped, decisions reached by state and federal courts, and analyses published in the Education of the Handicapped Law Review are cited. The document notes the importance of the U.S. Supreme Court's ruling in "Board of Education of Hendrick Hudson Central School District, Westchester County v. Rowley." (PGD)