Appellant Abney is a World War II veteran who has carried on a 30-year controversy with the Veterans Administration (VA) over disability benefits. On June 17, 1975, for perhaps the ninth time since his discharge, he came to Washington from his home in Texas to press his claim at the headquarters office of the VA adjacent to Lafayette Park. Rebuffed again, he went across the street to the park to take up a round-the-clock vigil protesting his treatment at the hands of the VA. Obviously, given appellant’s concept of the purpose underlying his conduct, this necessitated sleeping in the park.1 On August 3 and 7, September 2, and October 28 he was arrested 2 for sleeping in the park with intent to remain for more than four hours, a violation of 36 C.F.R. § 50.25(k) (1975).3 He was convicted and sentenced to short jail terms. He now appeals, alleging infringement of his First Amendment rights. We reverse the convictions.
Since the Park Service has chosen to exercise its delegated authority by a regulation contemplating the exercise of discretion through the grant or denial of permits in individual cases, the constitutional considerations relevant to all such licensing schemes are fully operative. In the unusual circumstances here presented, Abney’s sleeping must be taken to be sufficiently expressive in nature to implicate First Amendment scrutiny in the first instance.4 Hence, we must test the regulation against the familiar standards announced in Shuttlesworth v. Birmingham, 394 U.S. 147, 89 S.Ct. 935, 22 L.Ed.2d 162 (1969). The regulation gives the Superintendent authority to grant permission to *249sleep in the park beyond the time limit specified, but it contains no “narrow, objective, and definite standards to guide the licensing authority,” id. at 151, 89 S.Ct. at 938, 22 L.Ed.2d at 167, thereby to guard against the danger of arbitrary action or de facto censorship of certain points of view. If the Shuttlesworth standard of “public welfare, peace, safety, health, decency, good order, morals, or convenience” is facially unconstitutional, the totally unfettered discretion granted to the Superintendent here cannot survive constitutional challenge. See also Niemotko v. Maryland, 340 U.S. 268, 271-272, 71 S.Ct. 325, 327, 95 L.Ed.2d 267, 270 (1951) (permits required by custom rather than by statute).
Abney, through his attorney, applied for a permit under Section 50.25(k) three days before the first arrest at issue here. Not until 19 days later did he receive a reply denying the permit,5 in a letter from the Director of the National Capital Parks — not from the Superintendent, who is the official designated in the regulation to pass on such requests. The letter indicated that such permission is never granted under Section 50.25(k), since it is Park Service policy to confine sleeping to designated camping areas. It may well be that such an across-the-board ban on sleeping outside official campgrounds would be constitutionally acceptable' if duly promulgated and evenhandedly enforced. But the post hoc policy rationalization belatedly supplied by the Director cannot be thought to provide the necessary binding standards where the regulation has none. Cf. Shuttlesworth v. Birmingham, supra, 394 U.S. at 153, 89 S.Ct. at 940, 22 L.Ed.2d at 168. (Alabama Supreme Court’s “remarkable job of plastic surgery” in narrowly construing the Birmingham ordinance long after Shuttlesworth’s arrest found insufficient to validate the conviction).
The regulation as applied in this case contravenes the First Amendment.
Reversed.