I. Commissioning Customs Declaration
What to look for regarding commissioning customs declarations.
Based on practical experience, the process involves these aspects: Two Modes—Customs declaration enterprises accept authorization from consignors/consignees to declare to Customs in their own name or the principal’s name (requiring submission of an agency authorization agreement signed by the principal); Self-Declaration—Consignors/consignees declaring in their own name must sign and stamp the declaration form (accompanied by relevant documents); Initiation—Users select “Initiate Commission” under the “Commission Relationship Management” menu (input the agent’s name or Customs code, select the enterprise, and click “Initiate Commission” to complete the request); Acceptance—Customs declaration enterprises select “Confirm Commission” under the “Commission Relationship Management” menu (to locate pending requests); Drafting—Upon receiving a draft declaration generated by a foreign trade company, the customs broker can refine the draft; Refinement—Click “Customs Declaration” within the management subsystem (click “Modify Details” to access the export declaration details page); Agreement—Required accompanying documents include the agency authorization agreement (Article 8 of GACC Decree No. 277). In summary, there are six key steps to understand: self-declaration (signature/stamp), agency agreement, initiating the commission, confirming the commission, refining the draft, and submitting the declaration.
II.
Declaration Time Limits
What to look for regarding declaration time limits.
Regarding export customs declaration timeframes, consider the following six aspects: **24 Hours**—The consignor of export goods or the commissioned customs broker must declare the goods to Customs after they arrive at the Customs-supervised zone but no later than 24 hours prior to loading (General Administration of Customs Decree No. 277: *Provisions on the Administration of Declaration of Import and Export Goods*); **Late Declaration Fees**—Customs levies fees in accordance with the law for declarations made beyond the prescribed time limit (General Administration of Customs); **Electronic Declaration Date**—For declarations submitted via electronic data, the declaration date is the date the Customs information management system accepts the declaration data (for paper declarations, the date is when Customs accepts and registers the paper form; General Administration of Customs); **Standardization**—Electronic declaration data and accompanying documents must be transmitted to Customs in compliance with the *Standards for Filling Out Customs Declarations for Import and Export Goods of the People’s Republic of China* (“Internet + Customs”); **Statutory Inspection**—Statutory inspection of import/export commodities (consignors/consignees or agents submit inspection applications and materials via the “Internet + Customs” platform or the China International Trade Single Window; Customs officials review the data against regulations and accept compliant applications); **Advance Preparation**—Ensure all customs declaration documents are fully prepared in advance (handled by qualified customs brokers)—Summary of the six timeframe considerations: 24-hour deadline, late declaration fees, electronic declaration date, filling standards, statutory inspection, and advance preparation;
ensuring compliance across these six areas.
III. Accompanying Documents
What to look for regarding accompanying documents.
Regarding export customs declaration documentation, the documents should be reviewed across these aspects: **Eight Categories**—Consignees/consignors of import/export goods and commissioned customs brokers must submit specific accompanying documents to Customs as required by law (unless exempted by regulation): contracts, invoices, packing lists, cargo manifests, bills of lading/transport documents, letters of authorization for customs declaration, import/export licenses, other documents required by laws and administrative regulations (refer to Article 8 of GACC Decree No. 277); **Declaration**—Exporters must apply for customs declaration when goods leave the country (filling out the export declaration form and submitting documents such as contracts, letters of credit, invoices, packing lists, export licenses, export proceeds verification/write-off forms, and customs clearance certificates for outbound goods); **Materials**—Preparing declaration materials, including contracts, invoices, packing lists, bills of lading, etc. (Practical Guide to Cross-Border Trade Operations); **Filling Out**—Correctly completing the import/export declaration form in accordance with Customs requirements (submitting materials via the “Electronic Port” system or in paper format); **Review**—Key points of Customs review include verifying goods information (description, quantity, value, country of origin, etc.); **Consistency**—Reported information must be authentic, complete, and accurate (consistent with accompanying documents like contracts, invoices, and technical specifications, as well as logistics data; discrepancies may lead to liability; refer to the interpretation of GACC Announcement No. 77)—In summary, the six aspects of documentation review are: the eight categories of documents, specific supporting documents, declaration materials, the declaration form itself, key review points, and information consistency—ensuring a complete set of documents.
IV.
Platform Operations
What to look for in platform operations.
Based on operational practices for the “Single Window” platform, here are six key aspects to consider: Access Point—visit the China International Trade Single Window (navigate via: Business Applications > Port Law Enforcement Declaration > Cargo Declaration); Inquiry—after logging in, select the “Comprehensive Inquiry,” “Simple Inquiry,” or “Customs Declaration Data Inquiry” menu (for Simple Inquiry, enter the Unified Number or Customs Declaration Number; for Customs Declaration Data Inquiry, selecting “Basic Inquiry” allows you to search using the Unified Number or Customs Declaration Number without matching other mandatory criteria); Login—enter the system using a designated smart card (enabling the search, viewing, and printing of data regarding low-value, rapid cargo declarations); Declaration—correctly complete import/export cargo declaration forms in accordance with Customs requirements (submit declaration materials to Customs via the Electronic Port system or in paper format); Manuals—consult the Single Window Standard Version User Manual (covering the Cargo Declaration module and the Hebei Single Window Export Tax Rebate Production Version); Module—use the Cargo Declaration module to transmit electronic declaration data and accompanying documents to Customs, adhering to the specifications for filling out declaration forms (“Internet + Customs”). In summary, the platform offers a seamless experience across these six areas: business application access, comprehensive inquiry, smart card login, Electronic Port declaration, user manuals, and the cargo declaration module.
V.
Completion Specifications
What to look for regarding completion specifications.
When completing customs declarations, observe these six key points: **Remarks**—the remarks field is not for free-form text (e.g., goods priced via formula require a specific format: formula pricing + record-filing number + “@”; declarations based on a pre-ruling decision require “pre-ruling” + decision number; temporary import/export exhibits require category and re-export deadline; incorrect formatting causes system validation failure); **Punctuation**—use only half-width characters (regulations explicitly mandate this for angle brackets, commas, hyphens, colons, etc.); **Prohibitions/Restrictions**—for lathes, milling machines, grinding machines, and similar material-processing equipment, declare details according to prohibition/restriction control elements (verify via the “Single Window” parameter query function, match against the standard declaration category for the goods, and accurately fill in the control identification code and declaration element fields); **Consignee**—enter the full Chinese or English name of the overseas consignee in the designated fields (overseas consignor/consignee field, Category C express shipment consignee field, or cross-border e-commerce declaration list remarks field); **Production**—enter information regarding the domestic manufacturer or sales entity in the “production/sales unit” field of the cross-border e-commerce declaration list (do not substitute with the name of the e-commerce platform or enterprise); **Supporting Documents**—attach relevant documents such as contracts, invoices, and technical specifications when declaring (Category C express shipment declarations allow submission via paper or optical disc; cross-border e-commerce lists do not require these attachments). Compliance is ensured by focusing on these six aspects: standardized remark formats, half-width punctuation, prohibition/restriction control elements, full names of overseas consignees, production/sales unit details, and supporting documents.
Conclusion
How is export customs declaration handled for non-standard assembly lines? The process is defined by five key dimensions: entrustment, timing, documentation, platform, and data entry.
Entrustment—either self-declare (signing and stamping) or appoint a customs broker (initiate the mandate via the “Single Window” system by searching for the broker’s name or Customs Code to confirm the relationship; the broker then completes the draft declaration, submits it, and uploads the Letter of Authorization for Customs Declaration); Timing—declare at least 24 hours prior to loading after arrival at the customs-supervised zone (late declarations incur a penalty fee); the declaration date is the date the Customs system accepts the electronic data; goods requiring inspection must undergo statutory inspection first; Documentation—prepare the eight required accompanying documents (contract, invoice, packing list, cargo manifest, bill of lading/transport document, Letter of Authorization for Customs Declaration, import/export licenses, and other documents required by law/regulation), plus the Letter of Credit/collection verification form and the Customs Clearance Certificate for Outbound Goods; ensure information is authentic, complete, and accurate, and consistent with the actual logistics; Platform—use the China International Trade “Single Window” (navigate to Business Applications > Port Law Enforcement Declaration > Cargo Declaration; use the query function—simple or comprehensive—to search for declaration data by entering the Unified Number or Declaration Form Number; log in via IC card; submit electronically or via paper documents); Data Entry—adhere to declaration form filling specifications (e.g., format the “Remarks” column for formula-based pricing by including the record-filing number; use half-width punctuation; for machinery like lathes, milling machines, and grinders, include the control identification code and specific declaration elements; provide the full Chinese and English names of the overseas consignee; and include the contract, invoice, and technical specifications).
In short, following industry practice, export declaration success boils down to: confirming the entrustment, declaring 24 hours in advance, preparing the eight required documents, and filing via the “Single Window”—master these four steps, and the declaration process will proceed smoothly.
