For professional school counselors and clinical mental health counselors to serve students with disabilities and adequately advocate within the comprehensive school and community contexts, they must first understand the legislation that exists. Congress set these legislations in place to protect the rights of students with disabilities and assure them access, inclusion, and a free and appropriate public education. This chapter helps to identify the disability categories under the Individuals with Disabilities Education Act and the common characteristics of giftedness. It recognizes legislative mandates that apply to education of children and adolescents with disabilities and giftedness in grades Pre-K through 12. The chapter describes postsecondary transition issues for adolescents with disabilities entering postsecondary institutions. It expresses the connection between identity and disability. The chapter explains the role of the professional school counselor and clinical mental health counselors when working with students with disabilities and those classified as gifted.