At oral argument, counsel for the District maintained that we should not view this as a licensing case for standing purposes because D.C.’s firearm registration system amounts to a complete prohibition on handgun ownership. The District argues that we must analyze appellants’ standing exclusively under our pre-enforcement precedents, Seegars and Navegar. We disagree on both counts. The District does not completely prohibit handgun registration. See D.C. Code § 7-2502.02(a)(4) (allowing certificates for pistols already registered in the District prior to 1976); D.C. Code § 7-2502.02(b) (excluding retired police officers of the Metropolitan Police Department from the ban on pistol registration). Had Heller been a retired police officer, presumably the District would have granted him a registration certificate. The same would be true if Heller had attempted to register a long gun, as opposed to a handgun. In any event, Heller has invoked his rights under the Second Amendment to challenge the statutory classifications used to bar his ownership of a handgun under D.C. law, and the formal process of application and denial, however routine, makes the injury to Heller’s alleged constitutional interest concrete and particular. He is not asserting that his injury is only a threatened prosecution, nor is he claiming only a general right to handgun ownership; he is asserting a right to a registration certificate, the denial of which is his distinct injury.