District of Columbia Code Division I. Government of District. § 8-2221.29. Inspection of business or vocational establishments requiring a license or permit or any vehicle, boat, market box, market stall or cold storage plant, during business hours.

Authorized officers and employees of the government of the United States or of the government of the District of Columbia are, for the purpose of enforcing the provisions of this chapter and the regulations promulgated by the Council of the District of Columbia under the authority of this chapter, empowered, during business hours, to inspect any building or premises in or on which any business, trade, vocation, or occupation requiring a license or permit is carried on, or any vehicle, boat, market box, market stall, or cold-storage plant. No person shall refuse to permit any such inspection.