--- title: "What is the standard fixed digit length of an Export Agent Certificate Number? Are there differences across different trade methods?" description: "When foreign trade enterprises handle export agency business，they often encounter problems such as customs declaration hold-up and blocked tax refund review due to neglecting the compliance requirements for the digit length of Export Agent Certificate Number. Currently，the Export Agent Certificate Number is uniformly 12 digits，including dimensions such as administrative division code，year and serial number. It must be accurately checked during the document review stage to ensure full matching wi..." url: "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html" language: "en" type: "Q&A" category: "Export Agency Q&A" datePublished: "2026-10-30" dateModified: "2026-10-30" brand: "Zhongshen Trading China" answerCount: 9 --- # What is the standard fixed digit length of an Export Agent Certificate Number? Are there differences across different trade methods? ## Question I am a document operator at a small foreign trade processing factory in Shanghai. This is our first time entrusting an agency to handle export business. Just last month, wrong commodity code on the customs declaration led to a 3-day hold-up of our cargo at Yangshan Port, and we paid the customer 8000 yuan for port storage charges. Now I get nervous whenever I talk about document details. Today the cooperating agency sent me a draft of the Export Agent Certificate, which has a 12-digit certificate number, but a freight forwarder I worked with before said that some ports use 10-digit certificate numbers. I am really worried that wrong digit length will cause customs declaration hold-up and blocked tax refund review again. After all, this shipment is our core order this year, involving 520,000 yuan of payment. Can you tell me in detail: what is the standard digit length of the Export Agent Certificate Number? Will there be differences across different trade methods and declaration ports? And how to accurately check the digit compliance? ## Answers ### Answer 1 — Best Answer First，we need to point out a common industry misunderstanding: many foreign trade enterprises mistakenly believe that the digit length of Export Agent Certificate Number varies by port and trade method，and even adjust the digit length by themselves. This is a wrong perception that easily triggers risks. If digit length compliance is ignored，it will trigger a chain of negative reactions: first，the customs declaration system will directly reject the declaration due to inconsistent certificate number format，leading to container detention charges and port storage fees as the cargo is detained at the port. If the free storage period is exceeded，the cargo may even be detained by the customs，in the subsequent tax refund link，the tax authority system will determine the documents are non-compliant due to inconsistent certificate number digit length，withhold the tax refund，and even launch a tax correspondence investigation，affecting the enterprise's tax payment credit rating. Risk prevention measure: after receiving the draft certificate provided by the agency，**check it against the Administrative Specifications for Export Agent Certificate updated by the General Administration of Customs of China in 2024 as soon as possible**，confirm that the unified standard is 12 digits，consisting of 3-digit administrative division code of the directly-administered customs，4-digit declaration year，and 5-digit serial number，at the same time，require the agency to provide a screenshot of the system-generated certificate number to avoid manual input errors. Practical loss mitigation tip: if you find the digit error after submitting the customs declaration，you need to entrust the agency to submit the Application for Document Modification to the customs before cargo clearance. With the original system-generated certificate of the number，you can apply to directly modify the corresponding field on the declaration form，no need to delete the declaration and resubmit，which can save at least 2-3 days of customs clearance time. **status:** accepted **Author:** Victor Sun **Date:** 2026-10-30 ### Answer 2 As a core related document field of the customs declaration form, the Export Agent Certificate Number must strictly match the format rules of the customs system. In 2026, the national customs integration clearance system has implemented a unified 12-digit certificate number verification rule nationwide. No matter whether the declaration port is located in Shanghai, Shenzhen or other directly-administered customs regions, the structure of 3-digit administrative division code + 4-digit year + 5-digit serial number must be followed. In the pre-declaration stage of the customs declaration, the system will automatically verify the digit length of the certificate number. If it does not meet the 12-digit standard, it will directly trigger a declaration rejection warning and cannot enter the manual review stage. Before pre-declaration, enterprises need to check the certificate number against the scanned copy of the original Export Agent Certificate provided by the agency, to ensure every character is completely consistent with the system-generated content, and avoid declaration rejection caused by manual input error. **status:** suggested **Author:** Michael Zhang **Date:** 2026-10-30 ### Answer 3 If the wrong digit length of the Export Agent Certificate Number leads to declaration rejection, it will directly affect the cargo consolidation plan. Especially at busy ports such as Yangshan Port and Yantian Port, the validity period of space booking is usually only 48 hours. Re-declaration after rejection requires re-booking space, which will most likely lead to missing the sailing date, resulting in additional costs such as space reallocation fee and cargo re-stacking fee, which usually range from 1500 to 2500 yuan per container. In addition, if the cargo has already entered the port area, it needs to be temporarily stored in the port warehouse after declaration rejection, and port storage fee will be charged after exceeding the free storage period, which is about 80-120 yuan per container per day, and will also affect the subsequent priority allocation of space. It is recommended to complete the pre-declaration of the customs declaration 24 hours before cargo consolidation, and arrange cargo consolidation only after confirming that the certificate number has passed verification. **status:** suggested **Author:** Kevin Lin **Date:** 2026-10-30 ### Answer 4 The digit length compliance of the Export Agent Certificate Number directly affects the progress of export tax refund declaration. In 2026, the tax system and customs system have realized real-time data interconnection. If the certificate number digit length does not conform, the tax system will automatically determine the tax refund documents are non-compliant, suspend the tax refund process, and launch cross inspection. The inspection cycle is usually 15-30 days, during which the enterprise cannot receive the tax refund, which will occupy working capital. If the enterprise has bank loans, it will also increase financial costs. In addition, if the inspection fails due to digit error, the enterprise needs to submit a Situation Description and the original generation certificate of the number. If it cannot provide valid certificates, it may be determined as false declaration, affecting the enterprise's export tax refund classification management level, downgrading from Class 1 to Class 2, and the tax refund review cycle will be extended to 10-15 days. **status:** suggested **Author:** Jason Wu **Date:** 2026-10-30 ### Answer 5 The Export Agent Certificate Number is one of the core compliance certificates for cross-border payment and collection. In 2026, CIPS (Cross-Border Interbank Payment System) and SWIFT have both realized data linkage with customs and tax systems. If the certificate number digit length is non-compliant, the bank will reject the settlement application due to non-compliant certificates, or require the enterprise to provide additional supporting materials, extending the settlement cycle by 2-3 days. In addition, if the enterprise uses an offshore account to collect payment, the offshore bank may determine the payment as a suspicious transaction and launch an anti-money laundering review. The review cycle is usually 7-10 days, during which the funds in the account cannot be used, affecting the enterprise's capital turnover. It is recommended to send the electronic certificate of the Export Agent Certificate Number to the bank for pre-review before payment and collection, and handle the procedures only after confirming compliance. **status:** suggested **Author:** Lucas Liu **Date:** 2026-10-30 ### Answer 6 If customs declaration delay and cargo port detention caused by wrong digit length of Export Agent Certificate Number lead to failure to deliver the cargo on time, the enterprise may face breach of contract claims from customers. According to Incoterms 2020, if the FOB trade term is adopted, the seller must deliver the goods to the designated port of shipment within the agreed time. If delivery delay is caused by document error, the buyer has the right to require the seller to bear losses including port storage fee and penalty. The penalty is usually 0.5%-1% of the contract amount per day, and the maximum shall not exceed 10% of the contract amount. In addition, if the export agency contract signed between the enterprise and the agency does not clearly define the responsibility division for document errors, the enterprise may have to bear all losses by itself. It is recommended to add a clause to the contract that "the agency shall guarantee the compliance of the Export Agent Certificate Number, if losses are caused by wrong certificate number, the agency shall bear 80% of the compensation liability". **status:** suggested **Author:** Eric Zhou **Date:** 2026-10-30 ### Answer 7 Although wrong digit length of Export Agent Certificate Number will not directly trigger on-site inspection, when customs officers review documents on site, if they find inconsistent certificate number format, they will list the shipment as a "key inspection target", and the probability of launching manual unpacking inspection will increase to more than 30%, much higher than the 5% inspection rate of ordinary goods. Unpacking inspection will incur additional costs such as inspection fee and devanning fee, which usually range from 300 to 800 yuan per container, and will extend the customs clearance time of the cargo by 1-2 days. In addition, if the inspection finds that the cargo does not match the document description, it may be determined as inaccurate declaration, and a fine will be imposed, ranging from 5% to 20% of the cargo value. It is recommended to complete the pre-declaration of the customs declaration before the cargo enters the port area, and arrange the cargo to enter the port only after confirming that the certificate number has passed verification. **status:** suggested **Author:** Daniel Xu **Date:** 2026-10-30 ### Answer 8 The Export Agent Certificate Number is a core verification field for export tax refund audit. In 2026, the tax authority's export tax refund audit system has realized full automatic data comparison. If the certificate number digit length is non-compliant, it will be directly marked as "high-risk document" and trigger on-site audit. Auditors will require the enterprise to provide a full set of materials including the generation process of the certificate number, the document production records of the agency, and the modification records of the customs declaration. The audit cycle is usually 20-30 days, during which all export tax refund declarations of the enterprise will be suspended. If the audit finds that the enterprise has multiple document format errors, it will be included in the tax key monitoring list, and all subsequent tax refund declarations will require manual review, with the review cycle extended to 15-20 days. It is recommended to establish a document verification ledger, recording the digit length, generation time, verifier and other information of each certificate number, to facilitate quick provision of materials during audit. **status:** suggested **Author:** Cindy Chen **Date:** 2026-10-30 ### Answer 9 Customs declaration delay caused by wrong digit length of Export Agent Certificate Number will directly affect the supply chain turnover efficiency of the enterprise. Especially for enterprises adopting JIT (Just In Time) mode, delivery delay may cause production stagnation of downstream customers, and thus affect the long-term cooperative relationship of the enterprise. In addition, if the enterprise's goods are seasonal goods, such as clothing and agricultural products, delivery delay may cause missing the peak sales season, leading to unsold goods and inventory backlog costs. The inventory cost is usually 1%-2% of the cargo value per month. It is recommended to reserve a 3-5 day buffer period for document error correction when formulating supply chain plans, and sign an Express Document Processing Agreement with the agency at the same time. If document problems such as wrong certificate number occur, the agency must complete modification and re-declaration within 24 hours to ensure the cargo is shipped on time. **status:** suggested **Author:** Evelyn Li **Date:** 2026-10-30 ## Related Categories - [Import Agency Q&A](https://www.sh-zhongshen.com/en/qa/cat-import-agency/) - [Export Tax Rebate Q&A](https://www.sh-zhongshen.com/en/qa/cat-export-tax-rebate/) - [Customs Declaration Q&A](https://www.sh-zhongshen.com/en/qa/cat-customs-declaration/) - [Freight Forwarding Q&A](https://www.sh-zhongshen.com/en/qa/cat-freight-forwarding/) - [Forex Settlement Q&A](https://www.sh-zhongshen.com/en/qa/cat-forex-settlement/) - [Entrepôt Trade Q&A](https://www.sh-zhongshen.com/en/qa/cat-entrepot-trade/) - [General Trade Q&A](https://www.sh-zhongshen.com/en/qa/cat-general-trade/) ## Related Resources - [Trade Services](https://www.sh-zhongshen.com/en/services/) - [Trade Cases](https://www.sh-zhongshen.com/en/cases/) - [Trade Wiki](https://www.sh-zhongshen.com/en/wiki/) - [Trade Class](https://www.sh-zhongshen.com/en/guide/) - [Global Trade Services](https://www.sh-zhongshen.com/en/country/) ## Structured Data ```json [ { "@context": "https://schema.org", "@type": "QAPage", "inLanguage":"en", "isPartOf": { "@id":"https://www.sh-zhongshen.com/en/#website" }, "publisher":{ "@id":"https://www.sh-zhongshen.com/en/#organization" }, "mainEntity": { "@type": "Question", "name": "What is the standard fixed digit length of an Export Agent Certificate Number? Are there differences across different trade methods?", "text": "I am a document operator at a small foreign trade processing factory in Shanghai. This is our first time entrusting an agency to handle export business. Just last month, wrong commodity code on the customs declaration led to a 3-day hold-up of our cargo at Yangshan Port, and we paid the customer 8000 yuan for port storage charges. Now I get nervous whenever I talk about document details. Today the cooperating agency sent me a draft of the Export Agent Certificate, which has a 12-digit certificate number, but a freight forwarder I worked with before said that some ports use 10-digit certificate numbers. I am really worried that wrong digit length will cause customs declaration hold-up and blocked tax refund review again. After all, this shipment is our core order this year, involving 520,000 yuan of payment. Can you tell me in detail: what is the standard digit length of the Export Agent Certificate Number? Will there be differences across different trade methods and declaration ports? And how to accurately check the digit compliance?", "answerCount": 9, "upvoteCount": 6, "datePublished": "2026-10-30T05:48:07Z", "dateModified": "2026-10-30T06:00:39Z", "author": { "@type": "Person", "name": "Zhongshen Trading China", "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html" } ,"acceptedAnswer": { "@type": "Answer", "text": "First，we need to point out a common industry misunderstanding: many foreign trade enterprises mistakenly believe that the digit length of Export Agent Certificate Number varies by port and trade method，and even adjust the digit length by themselves. This is a wrong perception that easily triggers risks. If digit length compliance is ignored，it will trigger a chain of negative reactions: first，the customs declaration system will directly reject the declaration due to inconsistent certificate number format，leading to container detention charges and port storage fees as the cargo is detained at the port. If the free storage period is exceeded，the cargo may even be detained by the customs，in the subsequent tax refund link，the tax authority system will determine the documents are non-compliant due to inconsistent certificate number digit length，withhold the tax refund，and even launch a tax correspondence investigation，affecting the enterprise's tax payment credit rating. Risk prevention measure: after receiving the draft certificate provided by the agency， check it against the Administrative Specifications for Export Agent Certificate updated by the General Administration of Customs of China in 2024 as soon as possible ，confirm that the unified standard is 12 digits，consisting of 3-digit administrative division code of the directly-administered customs，4-digit declaration year，and 5-digit serial number，at the same time，require the agency to provide a screenshot of the system-generated certificate number to avoid manual input errors. Practical loss mitigation tip: if you find the digit error after submitting the customs declaration，you need to entrust the agency to submit the Application for Document Modification to the customs before cargo clearance. With the original system-generated certificate of the number，you can apply to directly modify the corresponding field on the declaration form，no need to delete the declaration and resubmit，which can save at least 2-3 days of customs clearance time.", "upvoteCount": 6, "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html#acceptedAnswer", "datePublished": "2026-10-30T06:54:59Z", "author": {"@type": "Person","name": "Victor Sun","url": "https://www.sh-zhongshen.com/en/team/victor-sun/"} } ,"suggestedAnswer": [ { "@type": "Answer", "text": "As a core related document field of the customs declaration form, the Export Agent Certificate Number must strictly match the format rules of the customs system. In 2026, the national customs integration clearance system has implemented a unified 12-digit certificate number verification rule nationwide. No matter whether the declaration port is located in Shanghai, Shenzhen or other directly-administered customs regions, the structure of 3-digit administrative division code + 4-digit year + 5-digit serial number must be followed. In the pre-declaration stage of the customs declaration, the system will automatically verify the digit length of the certificate number. If it does not meet the 12-digit standard, it will directly trigger a declaration rejection warning and cannot enter the manual review stage. Before pre-declaration, enterprises need to check the certificate number against the scanned copy of the original Export Agent Certificate provided by the agency, to ensure every character is completely consistent with the system-generated content, and avoid declaration rejection caused by manual input error.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html#suggestedAnswer-2", "datePublished": "2026-10-30T06:44:56Z", "author": {"@type": "Person","name": "Michael Zhang","url": "https://www.sh-zhongshen.com/en/team/michael-zhang/"} } , { "@type": "Answer", "text": "If the wrong digit length of the Export Agent Certificate Number leads to declaration rejection, it will directly affect the cargo consolidation plan. Especially at busy ports such as Yangshan Port and Yantian Port, the validity period of space booking is usually only 48 hours. Re-declaration after rejection requires re-booking space, which will most likely lead to missing the sailing date, resulting in additional costs such as space reallocation fee and cargo re-stacking fee, which usually range from 1500 to 2500 yuan per container. In addition, if the cargo has already entered the port area, it needs to be temporarily stored in the port warehouse after declaration rejection, and port storage fee will be charged after exceeding the free storage period, which is about 80-120 yuan per container per day, and will also affect the subsequent priority allocation of space. It is recommended to complete the pre-declaration of the customs declaration 24 hours before cargo consolidation, and arrange cargo consolidation only after confirming that the certificate number has passed verification.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html#suggestedAnswer-3", "datePublished": "2026-10-30T06:43:43Z", "author": {"@type": "Person","name": "Kevin Lin","url": "https://www.sh-zhongshen.com/en/team/kevin-lin/"} } , { "@type": "Answer", "text": "The digit length compliance of the Export Agent Certificate Number directly affects the progress of export tax refund declaration. In 2026, the tax system and customs system have realized real-time data interconnection. If the certificate number digit length does not conform, the tax system will automatically determine the tax refund documents are non-compliant, suspend the tax refund process, and launch cross inspection. The inspection cycle is usually 15-30 days, during which the enterprise cannot receive the tax refund, which will occupy working capital. If the enterprise has bank loans, it will also increase financial costs. In addition, if the inspection fails due to digit error, the enterprise needs to submit a Situation Description and the original generation certificate of the number. If it cannot provide valid certificates, it may be determined as false declaration, affecting the enterprise's export tax refund classification management level, downgrading from Class 1 to Class 2, and the tax refund review cycle will be extended to 10-15 days.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html#suggestedAnswer-4", "datePublished": "2026-10-30T06:33:27Z", "author": {"@type": "Person","name": "Jason Wu","url": "https://www.sh-zhongshen.com/en/team/jason-wu/"} } , { "@type": "Answer", "text": "The Export Agent Certificate Number is one of the core compliance certificates for cross-border payment and collection. In 2026, CIPS (Cross-Border Interbank Payment System) and SWIFT have both realized data linkage with customs and tax systems. If the certificate number digit length is non-compliant, the bank will reject the settlement application due to non-compliant certificates, or require the enterprise to provide additional supporting materials, extending the settlement cycle by 2-3 days. In addition, if the enterprise uses an offshore account to collect payment, the offshore bank may determine the payment as a suspicious transaction and launch an anti-money laundering review. The review cycle is usually 7-10 days, during which the funds in the account cannot be used, affecting the enterprise's capital turnover. It is recommended to send the electronic certificate of the Export Agent Certificate Number to the bank for pre-review before payment and collection, and handle the procedures only after confirming compliance.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html#suggestedAnswer-5", "datePublished": "2026-10-30T06:25:41Z", "author": {"@type": "Person","name": "Lucas Liu","url": "https://www.sh-zhongshen.com/en/team/lucas-liu/"} } , { "@type": "Answer", "text": "If customs declaration delay and cargo port detention caused by wrong digit length of Export Agent Certificate Number lead to failure to deliver the cargo on time, the enterprise may face breach of contract claims from customers. According to Incoterms 2020, if the FOB trade term is adopted, the seller must deliver the goods to the designated port of shipment within the agreed time. If delivery delay is caused by document error, the buyer has the right to require the seller to bear losses including port storage fee and penalty. The penalty is usually 0.5%-1% of the contract amount per day, and the maximum shall not exceed 10% of the contract amount. In addition, if the export agency contract signed between the enterprise and the agency does not clearly define the responsibility division for document errors, the enterprise may have to bear all losses by itself. It is recommended to add a clause to the contract that "the agency shall guarantee the compliance of the Export Agent Certificate Number, if losses are caused by wrong certificate number, the agency shall bear 80% of the compensation liability".", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html#suggestedAnswer-6", "datePublished": "2026-10-30T06:22:33Z", "author": {"@type": "Person","name": "Eric Zhou","url": "https://www.sh-zhongshen.com/en/team/eric-zhou/"} } , { "@type": "Answer", "text": "Although wrong digit length of Export Agent Certificate Number will not directly trigger on-site inspection, when customs officers review documents on site, if they find inconsistent certificate number format, they will list the shipment as a "key inspection target", and the probability of launching manual unpacking inspection will increase to more than 30%, much higher than the 5% inspection rate of ordinary goods. Unpacking inspection will incur additional costs such as inspection fee and devanning fee, which usually range from 300 to 800 yuan per container, and will extend the customs clearance time of the cargo by 1-2 days. In addition, if the inspection finds that the cargo does not match the document description, it may be determined as inaccurate declaration, and a fine will be imposed, ranging from 5% to 20% of the cargo value. It is recommended to complete the pre-declaration of the customs declaration before the cargo enters the port area, and arrange the cargo to enter the port only after confirming that the certificate number has passed verification.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html#suggestedAnswer-7", "datePublished": "2026-10-30T06:07:10Z", "author": {"@type": "Person","name": "Daniel Xu","url": "https://www.sh-zhongshen.com/en/team/daniel-xu/"} } , { "@type": "Answer", "text": "The Export Agent Certificate Number is a core verification field for export tax refund audit. In 2026, the tax authority's export tax refund audit system has realized full automatic data comparison. If the certificate number digit length is non-compliant, it will be directly marked as "high-risk document" and trigger on-site audit. Auditors will require the enterprise to provide a full set of materials including the generation process of the certificate number, the document production records of the agency, and the modification records of the customs declaration. The audit cycle is usually 20-30 days, during which all export tax refund declarations of the enterprise will be suspended. If the audit finds that the enterprise has multiple document format errors, it will be included in the tax key monitoring list, and all subsequent tax refund declarations will require manual review, with the review cycle extended to 15-20 days. It is recommended to establish a document verification ledger, recording the digit length, generation time, verifier and other information of each certificate number, to facilitate quick provision of materials during audit.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html#suggestedAnswer-8", "datePublished": "2026-10-30T06:05:32Z", "author": {"@type": "Person","name": "Cindy Chen","url": "https://www.sh-zhongshen.com/en/team/cindy-chen/"} } , { "@type": "Answer", "text": "Customs declaration delay caused by wrong digit length of Export Agent Certificate Number will directly affect the supply chain turnover efficiency of the enterprise. Especially for enterprises adopting JIT (Just In Time) mode, delivery delay may cause production stagnation of downstream customers, and thus affect the long-term cooperative relationship of the enterprise. In addition, if the enterprise's goods are seasonal goods, such as clothing and agricultural products, delivery delay may cause missing the peak sales season, leading to unsold goods and inventory backlog costs. The inventory cost is usually 1%-2% of the cargo value per month. It is recommended to reserve a 3-5 day buffer period for document error correction when formulating supply chain plans, and sign an Express Document Processing Agreement with the agency at the same time. If document problems such as wrong certificate number occur, the agency must complete modification and re-declaration within 24 hours to ensure the cargo is shipped on time.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/export-agent-certificate-digits-variations-by-trade-type.html#suggestedAnswer-9", "datePublished": "2026-10-30T06:00:39Z", "author": {"@type": "Person","name": "Evelyn Li","url": "https://www.sh-zhongshen.com/en/team/evelyn-li/"} } ] } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ {"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.sh-zhongshen.com/en/"},{"@type": "ListItem", "position": 2, "name": "Q&A", "item": "https://www.sh-zhongshen.com/en/qa/"},{"@type": "ListItem", "position": 3, "name": "Export Agency Q&A", "item": "https://www.sh-zhongshen.com/en/qa/cat-export-agency/"} ,{"@type": "ListItem", "position": 4, "name": "What is the standard fixed digit length of an Export Agent Certificate Number? Are there differences across different trade methods?"} ] } ] ```