Section 1752(a) also applies to any posted, cordoned off, or otherwise restricted area where the President is or will be temporarily visiting. This provides protection for the President during his/her travels without requiring advance formal designation. Cross reference in 18 U.S.C. § 1752(a)(3) and 18 U.S.C. § 1752(a)(4) makes those subsections applicable to restricted areas. However, 18 U.S.C. § 1752(a)(2) does not apply to temporary visit areas. See S.Rep. No. 91-1252, 91st Cong., 2d Sess. 2, 9, 11 (1970). This appears to reflect an accommodation with First Amendment considerations.
[cited in JM 9-65.400]