CFR›Title 45›Subtitle B›Chapter XVI›Part 1638 ContainsSections 1638.1–1638.5CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 1638—RESTRICTION ON SOLICITATION Sections 1638.1 § 1638.1 Purpose. 1638.2 § 1638.2 Definitions. 1638.3 § 1638.3 Prohibition. 1638.4 § 1638.4 Permissible activities. 1638.5 § 1638.5 Recipient policies. Authority42 U.S.C. 2996g(e).Source62 FR 19424, Apr. 21, 1997, unless otherwise noted. Previous 1637 Part 1637—Representation of Prisoners Next 1639 Part 1639—Welfare Reform