The following persons are eligible for service: Residents of the United States, including territories, insular possessions, the District of Columbia, and American citizens living abroad.
- Blind persons whose visual acuity, as determined by competent authority, is 20/200 or less in the better eye with correcting lenses, or whose widest diameter of visual field subtends an angular distance no greater than 20 degrees.
- Other physically handicapped persons are eligible as follows:
- Persons whose visual disability, with correction and regardless of optical measurement, is certified by competent authority as preventing the reading of regular printed material.
- Persons certified by competent authority as unable to read or unable to use regular printed material because of physical limitations.
- Persons certified by competent authority as having a reading disability resulting from organic dysfunction and of sufficient severity to prevent reading regular printed material in a conventional manner. This certification must be made by a doctor of medicine or doctor of osteopathy who may consult with colleagues in associated disciplines.
Institutions such as nursing homes, libraries, hospitals and schools may borrow equipment and reading materials for use by eligible patrons in either a group setting or for individual use. The institution is responsible for keeping a record of the serial numbers of all machines assigned to the institution. Public or private schools where handicapped students are enrolled must submit an institutional application as well as individual applications for each student accompanied by certification of eligibility for each applicant.