According to the FCC’s website:

The Federal Communications Commission regulates interstate and international communications by radio, television, wire, satellite, and cable in all 50 states, the District of Columbia, and U.S. territories. It was established by the Communications Act of 1934 and operates as an independent U.S. government agency overseen by Congress. The commission is committed to being a responsive, efficient and effective agency capable of facing the technological and economic opportunities of the new millennium. http://www.fcc.gov/what-we-do

The FCC addresses a variety of disability-related telecommunications matters, including telecommunications relay service, access to telecommunications equipment and services for people with disabilities, access to emergency information, and closed captioning. The FCC also provides expert advice and assistance to consumers, industry, and others on issues relevant to people with disabilities.  The FCC initiates rulemakings for the development of disability policy, conforming with existing disability laws, and policies and supporting the goal of increasing accessibility of communications services and technologies. http://www.fcc.gov/topic/disability