The following persons are eligible for service
I. 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.
II. Other physically handicapped persons are eligible as follows:
a. Persons whose visual disability, with correction and regardless of optical measurement, is certified by competent authority as preventing the reading of standard printed material.
b. Persons certified by competent authority as unable to read or unable to use standard printed material as a result of physical limitations.
c. Persons certified by competent authority as having a reading disability resulting from organic dysfunction and of sufficient severity to prevent their reading printed material in a normal manner.
In cases of blindness, visual impairment, or physical limitations, "competent authority" is defined to include doctors of medicine; doctors of osteopathy; ophthalmologists; optometrists; registered nurses; therapists; and professional staff of hospitals, institutions, and public or private welfare agencies (e.g., social workers, case workers, counselors, rehabilitation teachers, and superintendents). In the absence of any of these, certification may be made by professional librarians or by any person whose competence under specific circumstances is acceptable to the Library of Congress.
In the case of reading disability from organic dysfunction, competent authority is defined as doctors of medicine and doctors of osteopathy who may consult with colleagues in associated disciplines.
Residency or U.S. Citizenship
Eligible readers must be residents of the United States, including the several states, territories, insular possessions, and the District of Columbia; or, American citizens domiciled abroad.
Lending of Materials and Classes of Borrowers
In the lending of books, recordings, playback equipment, musical scores, instructional texts, and other specialized materials, preference shall be given at all times to the needs of the blind and other physically handicapped persons who have been honorably discharged from the armed forces of the United States.
The reading materials and playback equipment for the use of blind and physically handicapped persons may be loaned to individuals who qualify, to institutions such as nursing homes and hospitals, and to schools for the blind or physically handicapped for the use by such persons only. The reading materials and playback equipment may also be used in public or private schools where handicapped students are enrolled; however, the students in public or private schools must be certified as eligible on an individual basis and must be the direct and only recipients of the materials and equipment.