- 危包证 is actually two separate certificates: Performance Certificate (性能证) and Use Appraisal Certificate (使用证). 99% of exporters confuse them.
- Performance Certificate comes first: issued to the packaging manufacturer. Use Appraisal comes second: issued to the exporter.
- Without both certificates, dangerous goods cannot be loaded onto any vessel departing China.
- 2025 Differentiated Assessment: AEO-certified enterprises get streamlined processing. UN3077/UN3082 Class 9 may qualify for document-only verification.
In This Guide
- What is 危包证 (DG Packaging Certificate)?
- Two certificates explained: Performance vs Use Appraisal
- Step 1: Performance Certificate (性能证) - packaging manufacturer process
- Step 2: Use Appraisal Certificate (使用证) - exporter process
- Required documents checklist for both certificates
- Online application via China Single Window
- Timeline: how long does it take?
- Cost breakdown by UN class and packaging type
- 2025 Differentiated Assessment (差异化合格评定): what changed
- Certificate validity and renewal
- Frequently asked questions
1. What is 危包证 (DG Packaging Certificate)?
The term 危包证 (Wēi bāo zhèng) is used daily by every freight forwarder, factory manager, and customs broker involved in China DG exports. But here is what nearly every first-time exporter gets wrong: it is not one document. It is two.
The official framework comes from China's Law on the Quality and Safety of Import and Export Commodities and its implementing regulations. According to the China Ministry of Transport (MOT), the DG packaging certification system processes over 500,000 applications annually across all Chinese ports. Under Article 17, all dangerous goods exported from China must use packaging that has been tested and certified by the Entry-Exit Inspection and Quarantine (CIQ) authorities, now operating under China Customs.
The full formal Chinese name is 出境危险货物运输包装使用鉴定结果单 (Chūjìng wéixiǎn huòwù yùnshū bāozhuāng shǐyòng jiàndìng jiéguǒ dān), literally "Outbound Dangerous Goods Transport Packaging Use Appraisal Result Form." In practice, everyone says 危包证.
2. Two certificates explained: Performance vs Use Appraisal
The DG Packaging Certificate system consists of two distinct documents issued at different stages to different parties. Understanding the difference is essential for planning your export timeline.
| Aspect | Performance Certificate (性能证) | Use Appraisal Certificate (使用证) |
|---|---|---|
| Chinese name | 包装性能检验结果单 | 使用鉴定结果单 |
| Issued to | Packaging manufacturer | Exporter / shipper |
| Issued by | CIQ at packaging factory location | Customs at place of production |
| What it proves | The packaging design passed UN performance tests (drop, stacking, leakproofness, hydraulic pressure) | The actual goods were packed into certified packaging correctly and are safe for transport |
| When applied | Before packaging is manufactured or procured | After goods are packed and ready for shipment |
| Processing time | 3-5 working days (if packaging already type-approved) | 5-7 working days (including on-site inspection) |
| Validity | 12 months from issue date | Single shipment use (one certificate per export batch) |
3. Step 1: Performance Certificate (性能证)
The Performance Certificate is obtained by the packaging manufacturer, not the exporter. If you are an exporter buying UN-certified packaging from a supplier, the supplier should already have this certificate for the packaging type they sell you.
How packaging manufacturers get the Performance Certificate
- Submit packaging samples to CIQ. The manufacturer sends samples of each packaging type (drum type, material, capacity) to the local CIQ laboratory. For example, a 25L UN-rated plastic jerrycan (1H1) requires separate testing from a 200L steel drum (1A1).
- CIQ conducts UN performance tests. The tests follow the IMDG Code requirements and include:
- Drop test: packaging is filled and dropped from a specified height onto a rigid surface. Must not leak or rupture. According to the IMDG Code, drop heights vary by packing group: 1.8m for PG II, 0.8m for PG III (based on a packaging with a specific gravity ≤1.2).
- Leakproofness test: per the IMDG Code, applies internal air pressure (minimum 20 kPa for PG II packaging, as specified in section 6.1.5.4 of the IMDG Code) to verify no leakage through closures or seams.
- Hydraulic pressure test: for metal, plastic, and composite packaging. According to the IMDG Code section 6.1.5.5, applies internal hydraulic pressure (minimum 100 kPa for PG II, 250 kPa for PG I) for a specified duration.
- Stacking test: simulates the load of filled packages stacked during transport. As specified in the IMDG Code, minimum duration: 24 hours at ambient temperature (28 days at 40 degrees C for plastic packaging to test creep).
- CIQ issues the Performance Certificate. If all tests pass, CIQ issues a certificate specifying: packaging type code (e.g., 1H1/Y/1.5/250/22/CN/C39001), DG class compatibility, maximum gross mass, and certificate validity period (12 months).
Important for exporters: When you buy UN-certified packaging, always request a copy of the packaging manufacturer's Performance Certificate. You will need it when applying for your own Use Appraisal Certificate. If the manufacturer cannot provide it, their packaging is not legally certified, and you cannot use it for DG export.
4. Step 2: Use Appraisal Certificate (使用证)
This is the exporter-side certificate. It confirms that your actual goods were packed into certified packaging correctly. This certificate is shipment-specific: you need a new one for each export batch.
Application process for exporters
- Prepare the application. After goods are packed into UN-certified packaging, the exporter (or their authorized agent) submits an application to the local Customs office at the place of production. The application must include the Performance Certificate from the packaging manufacturer.
- Customs reviews documents. The reviewing officer checks that the packaging used matches the certified packaging type, that the DG class is compatible with the packaging, and that the packaging marking (UN mark) is visible and correct.
- On-site inspection. A Customs officer visits the packing location to verify:
- The packaging physically matches the Performance Certificate specifications
- UN marking is legible and meets the IMDG Code size requirements: minimum 12mm character height (6mm for packages with net mass 30kg or less, or capacity 30L or less, as specified in IMDG Code Part 6)
- Inner packaging (if used) is properly arranged and cushioned
- Closures are secure and leakproof
- Class labels and handling marks are correctly affixed
- Customs issues the Use Appraisal Certificate. If the inspection passes, the certificate is issued, typically in electronic format through the China International Trade Single Window (单一窗口). The certificate number becomes a required field when submitting the Maritime DG Declaration.
In Qingdao, our team coordinates on-site inspections directly with Shandong Customs inspectors. The Qingdao Customs DG inspection team handles a high volume of DG exports and is familiar with common packaging types used for chemicals, batteries, and industrial goods shipped through Qingdao Port.
5. Required documents checklist for both certificates
| Document | Required for Performance Cert | Required for Use Appraisal | Provided by |
|---|---|---|---|
| Packaging manufacturer business license | Yes | No | Packaging manufacturer |
| Packaging design specifications and drawings | Yes | No | Packaging manufacturer |
| Packaging material test reports | Yes | No | Raw material supplier |
| Product MSDS (Material Safety Data Sheet) | No | Yes | Exporter / manufacturer |
| DG Classification Report (危险品分类鉴定报告) | No | Yes | Certified lab (e.g., Shanghai Chemical Institute) |
| Performance Certificate (copy) | N/A | Yes | Packaging manufacturer |
| Exporter business license | No | Yes | Exporter |
| Packing list with DG details | No | Yes | Exporter |
| Power of Attorney (if using an agent) | Optional | Yes (if agent applies) | Exporter |
6. Online application via China Single Window
Since 2019, both the Performance and Use Appraisal Certificate applications can be initiated through the China International Trade Single Window (中国国际贸易单一窗口, www.singlewindow.cn), the unified online platform for all China customs and trade documentation.
Step-by-step navigation
- Log in to www.singlewindow.cn with your enterprise electronic card (法人卡) and USB key (U盾).
- Navigate to: Standard Applications (标准版应用) → Inspection and Quarantine (检验检疫) → DG Packaging Inspection (危险货物包装检验).
- For Performance Certificate: select "Performance Inspection Application" (性能检验申请). Fill in packaging type, material, UN standard, manufacturer details. Upload supporting documents.
- For Use Appraisal Certificate: select "Use Appraisal Application" (使用鉴定申请). Enter the Performance Certificate number (the system will auto-validate it), DG UN number and class, gross/net weight per package, number of packages, and packing date.
- Upload required attachments: MSDS, DG Classification Report, packing list, Performance Certificate copy, and photos of the packed goods showing UN markings.
- Submit and track status. The system shows real-time status: Pending Review (待审核) → Under Inspection (查验中) → Approved (已通过). The electronic certificate is downloadable once approved.
7. Timeline: how long does it take?
The total timeline depends on whether you are a first-time applicant or have existing DG export history with Customs.
| Stage | First-time applicant | Established exporter (with history) | Expedited |
|---|---|---|---|
| Performance Certificate (if packaging already type-approved) | 3-5 working days | 2-3 working days | 1-2 working days |
| Performance Certificate (if new packaging type needs testing) | 7-15 working days | 7-10 working days | 5-7 working days |
| Use Appraisal - document review | 2-3 working days | 1-2 working days | 1 working day |
| Use Appraisal - on-site inspection scheduling | 3-5 working days | 2-3 working days | 1-2 working days |
| Use Appraisal - certificate issuance | 1-2 working days | 1 working day | Same day |
| Total (standard case) | 10-15 working days | 7-10 working days | 5-7 working days |
Expedited processing (加急) is available at most CIQ offices, including Qingdao, for an additional fee. Expedited processing reduces the on-site inspection scheduling time and prioritizes document review. However, the physical testing timeline (if new packaging approval is needed) cannot be shortened.
8. Cost breakdown by UN class and packaging type
Costs vary by packaging type, UN class, and whether you apply directly or use an agent. Below are indicative ranges for common packaging categories based on current CIQ fee schedules and market rates.
| Cost item | Small packages (drums 25L or less, boxes) | Medium packages (drums 200L, IBCs) | Large / special packaging |
|---|---|---|---|
| Performance testing (per packaging type) | RMB 1,500-3,000 | RMB 3,000-6,000 | RMB 5,000-12,000 |
| Use Appraisal application fee | RMB 500-1,000 | RMB 800-1,500 | RMB 1,000-2,500 |
| On-site inspection fee | RMB 300-800 | RMB 500-1,200 | RMB 1,000-2,000 |
| Expedited processing surcharge | RMB 500-1,000 | RMB 800-1,500 | RMB 1,000-3,000 |
| Agent service fee (if using a forwarder) | RMB 1,000-3,000 | RMB 2,000-5,000 | RMB 3,000-8,000 |
| Total estimated range | RMB 3,300-8,000 | RMB 5,300-14,200 | RMB 10,000-25,500 |
For lithium battery exports specifically, the UN38.3 test report (RMB 8,000-25,000 depending on cell/battery type and quantity) is an additional mandatory cost before the DG Packaging Certificate can be applied for. See our lithium battery 危包证 guide for details.
9. 2025 Differentiated Assessment (差异化合格评定): what changed
In 2025, China Customs introduced a Differentiated Assessment (差异化合格评定) system for DG packaging certification. According to the China Ministry of Transport (MOT), this system was designed to streamline processing for compliant exporters while maintaining rigorous inspection standards for higher-risk shipments. This is the most significant procedural change since the Single Window was introduced.
What is Differentiated Assessment?
Instead of all exporters going through the same full inspection process, Customs now categorizes applicants based on risk profile and applies different levels of scrutiny:
| Assessment tier | Who qualifies | Process | Inspection frequency |
|---|---|---|---|
| Tier 1: Full process | First-time applicants, new DG products, exporters with prior violations | Full document review + on-site inspection + possible sampling | Every shipment |
| Tier 2: Document-only verification | UN3077/UN3082 Class 9 environmentally hazardous substances (low risk), exporters with clean record | Document review only; on-site inspection waived unless triggered by risk assessment | Random spot check (approximately 10-20% of shipments) |
| Tier 3: Streamlined for AEO | AEO (Authorized Economic Operator) certified enterprises with 2+ years of DG export history and zero violations | Simplified document submission; on-site inspection at reduced frequency | Sample inspection (approximately 5% of shipments) |
Key changes for exporters
- UN3077 and UN3082 exporters benefit most. Class 9 environmentally hazardous substances (solid and liquid) that are not also classified under other hazard classes may now qualify for document-only verification. This covers many industrial chemicals, adhesives, and polymer additives exported from China.
- AEO certification is now more valuable. If your company is AEO certified (AEO认证企业), you should flag this in your Single Window profile. It can reduce inspection frequency from every shipment to approximately 5%.
- Risk-based targeting still applies. Even Tier 2 or Tier 3 applicants can be pulled for full inspection if Customs' risk algorithm flags the shipment (unusual product quantity, new destination country, changed packaging type).
- The system is not automatic. You still submit the same application. Customs assigns the tier during review. You cannot self-declare your tier.
10. Certificate validity and renewal
Certificate validity periods differ significantly by transport mode, and this catches many exporters off guard.
| Transport mode | Performance Certificate validity | Use Appraisal Certificate validity |
|---|---|---|
| Sea freight | 12 months | Single use (per shipment) |
| Road transport | 12 months | Single use (per shipment) |
| Rail transport | 12 months | Single use (per shipment) |
| Air freight | 3 months | Single use (per shipment) |
Under the IATA Dangerous Goods Regulations (IATA DGR), the 3-month validity for air transport represents a significantly shorter window than sea freight. If your Performance Certificate was issued more than 3 months ago, it is still valid for sea shipments but not for air. You must obtain a new or renewed Performance Certificate specifically for air transport.
Renewal process
When a Performance Certificate approaches expiry, the packaging manufacturer must re-apply through CIQ. If the packaging design has not changed and the previous tests were passed without issues, the renewal is typically faster (3-5 working days) than a first-time application. If the packaging design, materials, or manufacturing process has changed, full re-testing is required.
11. Frequently asked questions
What happens if my DG Packaging Certificate expires mid-shipment?
The key validity date is the date of the Maritime DG Declaration submission (for sea freight), not the vessel departure date. If your certificate is valid on the day the declaration is accepted by the MSA, it remains valid for that shipment even if the vessel sails after expiry. Expedite your declaration if your certificate is close to expiry.
Can I use the same Performance Certificate for multiple customers?
Yes, if you are a packaging manufacturer. A single Performance Certificate covers all packaging of that specific type you produce within the validity period, regardless of who buys it. Each customer (exporter) then applies for their own Use Appraisal Certificate using your Performance Certificate as supporting documentation.
Do I need a DG Packaging Certificate for samples?
Yes, if the sample itself is classified as dangerous goods and is being shipped by sea or air from China. Even a single 1L bottle of Class 3 flammable liquid requires a valid DG Packaging Certificate. There are limited exemptions for very small quantities under the IMDG Code Limited Quantities provisions, but these still require compliant packaging and marking.
What if my packaging manufacturer is in a different province from my factory?
This is common and generally not a problem. The packaging manufacturer obtains the Performance Certificate from their local CIQ. The exporter then applies for the Use Appraisal Certificate from the Customs office where the goods are packed (place of production), providing the manufacturer's Performance Certificate number. The Single Window system validates the Performance Certificate nationally regardless of province.
Can Great Hensen apply for the DG Packaging Certificate on my behalf?
Yes. We prepare the full application package, coordinate the packaging manufacturer's Performance Certificate, handle the Single Window submission for the Use Appraisal Certificate, and manage the on-site inspection with Customs. Our DG team in Qingdao processes hundreds of these certificates annually. Contact us for a timeline and cost estimate for your specific DG products.
Need help with your DG Packaging Certificate?
Great Hensen manages the entire 危包证 process for DG exporters. From coordinating the packaging manufacturer's Performance Certificate through CIQ, to submitting the Use Appraisal application via Single Window, to managing the on-site inspection and Maritime DG Declaration: one point of contact, one accountable team.
Our DG team is based in Qingdao, with direct working relationships with Shandong Customs and the Qingdao MSA office. We have processed hundreds of DG Packaging Certificates across all nine IMDG classes.
Or call +86 13375320398 | info@GreatHensen.com
DG Packaging Certificate (危包证): Complete Guide Series
This page is the pillar guide. Explore each topic in depth:
Performance Certificate and Use Appraisal procedures, Single Window navigation, common rejection reasons.
Packaging types, UN marks, testing standards for each DG class 2 through 9. Quick reference tables.
UN38.3 prerequisite, packaging by UN number, SP188 exemption, air vs sea validity, 2025 EV codes.
Detailed cost breakdown, hidden costs, self-application vs agent, regional differences by port.
Also see: UN3536 Energy Storage Logistics Guide → | DG Freight Services →
Sources and references
- 《中华人民共和国进出口商品检验法》第17条: Legal basis for mandatory DG packaging inspection. 全国人民代表大会.
- SN/T 0370-2021: 出口危险货物包装检验规程 (China DG packaging inspection standards). Issued by GACC (海关总署).
- China International Trade Single Window (中国国际贸易单一窗口): Online application portal for DG packaging certificates. singlewindow.cn
- Differentiated Conformity Assessment (差异化合格评定): GACC announcement 2025年第8期, UN3077/UN3082 Class 9 streamlined procedure. 中国海关 2025年08期
- 危包证有效期: 空运3个月, 海运/陆运/铁路12个月: per CIQ inspection standards. ChemRadar Regulatory
- UN38.3 Test Report requirement: UN Manual of Tests and Criteria, Part III, Section 38.3. Mandatory for lithium battery DG shipments from Chinese ports.
- Ningbo Port mandatory UN38.3 effective October 2025: ONE Advisory Oct 2025
All procedural descriptions verified against GACC published guidelines and Great Hensen operational experience. Last verified: July 2026.