NIMAS establishes a uniform electronic (or digital) format for textbooks and related materials called a source file.
While a student's Individualized Education Plan (IEP) team makes decisions regarding instruction programing, modifications, and accommodations that will be needed, including the need for accessible instructional materials, decisions regarding who is eligible to utilize NIMAS materials are governed by the Act to Provide Books for the Adult Blind, originally passed in 1931.
NIMAC is a national repository of NIMAS source files maintained and coordinated by the American Printing House for the Blind (APH) in Louisville, Kentucky (http://www.
Beginning in August of 2006, whenever a local school district or state educational agency makes a purchase of print instructional materials, it must also contract with the publisher to prepare and, on or before delivery of the print instructional materials, provide to NIMAC electronic files containing the contents of the print instructional materials using the NIMAS.
NIMAC then makes the NIMAS files available to authorized users.