http://www.nfb.org/nfb/Braille_Certification.asp I'm surprised no one has posted this yet.For Literary Braille certification, the authority is the National Federation for the Blind, which offers a free course. If you find an organization to work with, lessons do not have to go through NFB.
Sharon Sharon von See Braille Coordinator TechAdapt, Inc. Braille Transcription/NIMAS Conversion http://www.techadapt.com 360-306-1676 (Voice) 360-544-0112 (Fax)