This pamphlet summarizes the responsibilities of school officials under Section 504 of the Rehabilitation Act of 1973 in administering nondiscriminatory disciplinary sanctions in the form of long-term suspension or expulsion of students with disabilities. It also summarizes the rights of disabled students and their parents or guardians in situations requiring such disciplinary action. Section 504 regulations concerning free appropriate public education and related services are noted, along with due process procedures. Section 504 provisions concerning "significant change in placement" are interpreted as they relate to expulsion and suspensions. The need to conduct a reevaluation of the student before implementing a suspension or expulsion that constitutes a significant change in placement is addressed, and steps in the reevaluation process are discussed. Requirements specific to alcohol and drug addiction are also described. Addresses and telephone numbers are provided for the 10 regional offices of the U.S. Department of Education's Office for Civil Rights. (JDD)