Inspection obligations require designated depository participants to produce records, grant access and assist inspecting officers during inspections. Designated depository participants must produce books, securities, accounts, records and other documents in their custody or control and furnish statements and information as the inspecting officer may require within a reasonable period. They must allow reasonable access to premises and facilities for examination of books, records, documents and computer data, provide copies of relevant materials, permit examination and recording of statements of directors, officers and employees, and ensure such persons give all reasonable assistance during the inspection.