2 U.S.C. § 135a: National library service for the blind and print disabled

Literary works published in raised characters, on sound-reproduction recordings, or in any other accessible format. Musical scores, instructional texts, and other specialized materials used in furthering educational, vocational, and cultural opportunities in the field of music published in any accessible format. Reproducers for such formats. Any item provided under paragraph (1) shall be provided on a loan basis and shall remain the property of the Library of Congress. the needs of the blind and visually disabled; and the needs of eligible persons who have been honorably discharged from the Armed Forces of the United States. The Librarian of Congress may contract or otherwise arrange with such public or other nonprofit libraries, agencies, or organizations as the Librarian may determine appropriate to serve as local or regional centers for the circulation of items described in subsection (a)(1). The Librarian of Congress is authorized to provide items described in subparagraphs (A) and (B) of subsection (a)(1) to authorized entities located in a country that is a party to the Marrakesh Treaty, if any such items are delivered to authorized entities through online, not physical, means. The Librarian may contract or otherwise arrange with such authorized entities to deliver such items to eligible persons located in their countries in any accessible format and consistent with section 121A of title 17 . In the purchase and maintenance of items described in subsection (a), the Librarian of Congress, without regard to section 6101 of title 41 , shall give preference to nonprofit institutions or agencies whose activities are primarily concerned with the blind and with other physically disabled persons, in all cases where, considering all the circumstances and needs involved, the Librarian determines that the prices submitted are fair and reasonable. The Librarian of Congress shall prescribe regulations for services under this section, in consultation with eligible persons and authorized entities. Such regulations shall include procedures that shall be used by an individual to establish that the individual is an eligible person. the terms “accessible format”, “authorized entity”, and “eligible person” have the meanings given those terms in section 121 of title 17 ; and the term “Marrakesh Treaty” has the meaning given in section 121A of such title 17. There are authorized to be appropriated to carry out this section such sums as may be necessary.