6400 Democracy Blvd. Bethesda, MD 20817 Voice (301)897-2212; TTY (301)897-2217 The Special Needs Library (SNL) was established in 1986 to serve the reading and information needs of people with: blindness or low vision, hearing disabilities, developmental disabilities, learning disabilities, physical disablilites or limited mobility The Special Needs Library also serves families of people with disabilities, students, service providers, and people who are homebound.