Is a warrantless inspection or search of a commercial premises reasonable?

Whether a warrantless inspection or search of commercial premises is reasonable turns on: (i) whether there is a "substantial government interest" that informs the regulatory scheme underlying the inspection or search; (ii) whether the inspection or search is necessary to further the regulatory scheme; and (iii) whether the scheme provides a substitute for a warrant by alerting the owner to the likelihood of such inspections and by limiting the discretion of the inspecting officials. New York v. Burger, 482 U.S. 691, 702-03, 107 S.Ct. 2636, 2644-45, 96 L.Ed.2d 601 (1987).