Какая из выделенных частей предложения содержит ошибку

[marishkafishka]

1. A customs broker should review what equipment and materials to be exported prior to the date of exportation.
2. If licensable machinery and materials are exported out of the United States without appropriate export license, Customs can seize the shipment and penalize the exporter.
3. A bonded area is usually a special area where foreign goods to be stored, and it is designated to assist smooth clearance of imports to be processed for re-export.
4. Don’t you know, that according to the Customs rules, articles of historical and artistic value are prohibited from taken out of the country without a special permission?
5. A corrupt Customs service will not deliver the revenue that is properly due to the state, isn’t it?