Execution of bond and furnishing of security required for customs broker licence, ensuring regulatory compliance and valid guarantees. Execution of bond and furnishing of security is required before granting a customs broker licence: the successful applicant must enter into a bond in Form D and, where specified, a surety bond in Form E for observance of the regulations, and furnish a bank guarantee, a postal security or National Saving Certificate in the name of the Principal Commissioner of Customs or Commissioner of Customs for the prescribed amount; interest on postal security or National Saving Certificate accrues to the Customs Broker.