22 C.F.R. § 502.1
(c) Summary.
(5) Pursuant to Section 208 of Foreign Relations Authorization Act, Fiscal Years 1986 and 1987, as amended, as codified at 22 U.S.C. 1461-1a, the Agency is prohibited from using appropriated funds to influence public opinion in the United States, however, the statute clarifies that the Agency may: