Permit Validity and Error Messages Permit Validity The validity period of an export permit depends on the type of goods involved, purpose for export, place of release and/or receipt. Generally, the validity periods for the export permits are as follow: Export Permit (Message Type) Validity Period* OUT Approval date + 9 working days Approval date + 2 working days if goods are dutiable and released from Customs licensed premises Approval date + 1 working day for movement of dutiable sea stores *Note: Please refer to the specific validity periods for each permit. If you are unable to utilise the permit within the stipulated period, please extend the validity period of the permit via TradeNet before it expires Error Messages If a permit application is incomplete or erroneous, you will be prompted with an error code, 'DCS Error' generated via TradeNet. For permit applications that do not meet Singapore Customs’ or other Competent Authorities’ requirements, you will receive a rejection message via TradeNet with the code, 'CA/SC Reject'. Please submit a new export application after rectifying the errors or omissions. A new Unique Reference Number (URN) will be provided for the new permit application.