Appeal from the United States District Court for the Northern District of California; Robert P. Aguilar, District Judge, Presiding.

Before BOOCHEVER and BRUNETTI*, Circuit Judges, and STEPHENS**, District Judge.

Footnote 1 on 879 F.2d 505, 506 (9th Cir.1989) should be deleted. The remaining footnotes should be renumbered.

At the end of section VII, 879 F.2d, at 514, the following text should be inserted before the section titled "Conclusion:"

This circuit has held that 18 U.S.C. Section 3013 (Supp. II 1984), the special assessment statute under which Hoyt was fined, is unconstitutional as a violation of the Origination Clause of the Constitution. U.S. Const. art. I, Section 7. United States v. Munoz-Flores, 863 F.2d 654, 661 (9th Cir.1988), cert. granted, --- U.S. ----, 110 S. Ct. 48, 107 L. Ed. 2d 17 (1989).

Although Hoyt did not raise the constitutionality of the assessment in his appeal, a court of appeals may review issues sua sponte under exceptional circumstances, where substantial public interests are involved, or where to not do so would be unduly harsh to one or both of the parties. See Preservation Coalition, Inc. v. Pierce, 667 F.2d 851, 862 (9th Cir.1982) (citing Consumers Union of United States, Inc. v. FPC, 510 F.2d 656, 662 n. 10 (D.C.Cir.1975)). We therefore reverse that part of Hoyt's sentence and remand for the district court to vacate the assessment. See Shah v. United States, 878 F.2d 1156 (9th Cir.1989) (sua sponte order of vacation of special assessment in appeal from denial of 28 U.S.C. Section 2255 motion).