Execution of bond imposes operational, reporting and access obligations on warehouse operators for customs supervision. Execution of bond permits the customs officer to require an applicant to file a bond after satisfying premises and trade considerations; the bond must commit the operator to observe the regulations, keep and produce detailed accounts and statements of goods used and in stock, provide customs officers office space and access for supervision, pay charges for officers posted for control, and comply with conditions imposed by the customs officer to effect the regulations and the Act.