Title IV: Telecommunications Title IV addresses telephone and television access for people with hearing and speech disabilities. It requires common carriers (telephone companies) to establish interstate and intrastate telecommunications relay services (TRS) 24 hours a day, 7 days a week. TRS enables callers with hearing and speech disabilities who use TTYs (also known as TDDs), and callers who use voice telephones to communicate with each other through a third party communications assistant. The Federal Communications Commission (FCC) has set minimum standards for TRS services. Title IV also requires closed captioning of Federally funded public service announcements. For more information about TRS, contact the FCC at: Federal Communications Commission 445 12th Street, S.W. Washington, D.C. 20554