Our mission is to deliver quality services to people who have intellectual and developmental disabilities, their families and others to empower them to lead the lives they choose. We foster community integration of children and adults who have disabilities in jobs, education, housing, and society. Making a difference through inclusion. HAV-IT Services makes a difference through you! The Accreditation Council on Services to People with Disabilities accredited HAV-IT in 1987 and has awarded HAV-IT an “Accreditation with Distinction” continuously since 1993.