CFR›Title 45›Subtitle B›Chapter XVI›Part 1637 ContainsSections 1637.1–1637.5CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 1637—REPRESENTATION OF PRISONERS Sections 1637.1 § 1637.1 Purpose. 1637.2 § 1637.2 Definitions. 1637.3 § 1637.3 Prohibition. 1637.4 § 1637.4 Change in circumstances. 1637.5 § 1637.5 Recipient policies, procedures and recordkeeping. Authority42 U.S.C. 2996g(e); Pub. L. 104-208, 110 Stat. 3009; Pub. L. 104-134, 110 Stat. 1321.Source62 FR 19422, Apr. 21, 1997, unless otherwise noted. Previous 1636 Part 1636—Client Identity and Statement of Facts Next 1638 Part 1638—Restriction on Solicitation