Foreword: Cold Thinking Behind DDP Popularity

With the growth of cross-border e-commerce and exports, DDP (Delivered Duty Paid) is becoming increasingly popular in the US market. The seller bears all transportation, customs clearance, and duty costs, delivering the goods directly to the buyer‘s door. However, this model conceals significant compliance risks.

Since March 1, 2026, US Customs and Border Protection (CBP) has sharply tightened enforcement nationwide, targeting false Importer of Record (IOR), borrowed bonds, undervaluation, and misrepresentation of origin. Under DDP, if the Chinese seller relies on a US intermediary for “clean customs”, any penalty will be issued to the IOR, but the financial liability will ultimately fall back on the seller.

This article systematically explains the full US import clearance process, core documents, roles, and risk red lines to help exporters build a compliance moat.

I. Full Process Overview: From Booking to Liquidation

Taking ocean FCL/LCL from China to the US, the complete cycle takes about 5–6 weeks. Key milestones (ETD = estimated departure):

Key takeaway: No matter how many intermediaries are involved, the Importer of Record (IOR) is always the first party CBP pursues. Under DDP, using a third-party IOR is like giving someone else the key to your business.

II. Five Core Documents/Actions – One‑Sentence Definition

III. Three Must‑Do Actions Before Loading (T-7 ~ T-3)

1. POA (Power of Attorney)

• Function: IOR authorizes a Customs Broker to act on its behalf.

• Signing requirement: Must be signed by the legal representative or authorized officer of the IOR, with articles of incorporation proving authority.

• Risk: POA signed under a “borrowed IOR” is invalid. CBP has been cracking down on such practice since 2026.

• Best practice: Avoid overly broad clauses such as “settle, compromise, admit liability”. When changing brokers, revoke the old POA in writing.

2. Bond (Customs Bond)

• Types:

  • Continuous Bond (CTB): For importers with >2 shipments/year or higher annual value. Amount = 10% of estimated annual duties & fees, minimum $50,000.

  • Single Transaction Bond (STB): For occasional importers. Amount = full customs value + duties + fees.

  • ISF Bond: Required when using STB – additional $10,000.

• Major risks:

  • Borrowed bond (bond holder ≠ IOR) → cargo detention, forced return, penalty up to 4x cargo value.

  • Insufficient or saturated bond → future shipments held, cannot clear.

• Compliant path: Register a US subsidiary or LLC as the true IOR, purchase your own Continuous Bond.

3. Document preparation (minimum 7 items)

• Commercial Invoice (actual transaction value – no undervaluation)

• Packing List (piece count, gross/net weight matching invoice)

• Bill of Lading (MBL + HBL)

• Arrival Notice

• Importer Number (EIN or CBP‑issued IR Number)

• POA and Bond documentation

• Product‑specific compliance certificates (FDA, FCC, CPSC, etc.)

IV. 24 Hours Before Loading – AMS + ISF Dual Filing

AMS (Manifest)

• Filer: Carrier (MBL level) and NVOCC (HBL level). NVOCC must have FMC OTI license and SCAC code.

• Deadline: 24 hours before loading at the last foreign port before sailing to the US.

• Common errors: Vague cargo description (“General Goods”), MBL/HBL mismatch, late/missed filing → $5,000 penalty per bill, possible “Do Not Load” order.

ISF (10+2)

• Responsibility: IOR is legally responsible. May authorize broker or NVOCC to file.

• Deadline: Also 24 hours before loading – submit 48 hours in advance to allow corrections.

• 10 data elements: Manufacturer, seller, buyer, ship‑to address, stuffing location, consolidator, IOR number, consignee number, country of origin, HS code (6‑digit minimum).

• Key risks:

  • Late/missing filing → $5,000perviolation(upto$5,000perviolation(upto10,000 per shipment).

  • Incorrect information (e.g., manufacturer listed as trader) → $5,000.

  • No “3Z” success code from CBP → considered not filed; carrier cannot load.

  • Discrepancies between ISF and subsequent Entry (HS, origin, value) → exam or penalty upon arrival.

V. In‑Transit and Arrival Clearance

1. In‑transit (T+1 ~ T+25)

• Track ETA, verify B/L, invoice, packing list consistency.

• Broker pre‑files Entry (CBP Form 3461) via ABI system about 5 days before arrival.

• CBP risk engine returns: release, hold, or exam instruction.

2. Entry Types

• Type 01 – Consumption entry for most commercial shipments > $2,500.

• Type 11 – Informal entry for ≤ $2,500, cannot be used for AD/CVD goods.

• Type 23 – TIB (Temporary Importation Bond) for exhibition goods, repair items.

• Type 02 – Warehouse entry for goods entering a bonded warehouse.

3. Formal Filing Steps

• Submit CBP Form 3461 within 15 days after arrival.

• After “Release”, submit CBP Form 7501 (Entry Summary) within 10 working days and pay duties, MPF, HMF.

4. Customs Examination

• Main types:

  • Document Review (free)

  • VACIS/X‑Ray (5L, non‑intrusive, ~$200\text{–}$200–500)

  • Tail Gate Exam (~$300\text{–}$300–600)

  • Hand Examination (5H, physical opening, $500\text{–}$500–2,500+, 3–7 days)

  • CET (Centralized Examination Station, $1,000\text{–}$1,000–5,000, 5–10 days)

• Effective March 2026: CBP intensified 5H exams targeting:

  • Fake IOR / borrowed bonds

  • Undervaluation

  • Origin misrepresentation

  • AD/CVD circumvention

Consequences: cargo detention, forced return, penalty (1–4x cargo value), IOR placed on high‑risk list.

5. Release and Container Pickup

• After receiving “Released” notice, pay terminal fees and arrange trucker appointment.

• Demurrage (port storage): free time typically 4–7 days; after that $150\text{–}$150–250/day/container.

• Detention (container late return): free time usually 5–10 days after pickup; same daily charge.

• Best practice: Confirm exam status 3 days before arrival; book truck before arrival; use LFD calendar.

VI. Post‑Clearance: Liquidation and Beyond

• Liquidation: Usually occurs 314 days after Entry. Final duty determination. May be suspended for AD/CVD goods.

• CF-28 / CF-29:

  • CF-28: Request for Information – must respond within 30 days, otherwise upgraded to CF-29.

  • CF-29: Notice of Action – can object within 20 days, otherwise CBP’s decision stands (duty increase, reclassification, etc.).

• Protest: If disagree with liquidation, file CBP Form 19 within 180 days.

• Reconciliation: When final value cannot be determined at entry (e.g., transfer pricing), declare Reconciliation flag and correct within 21 months.

• Recordkeeping: Under 19 CFR § 163, keep all import records for 5 years from liquidation date.

• CBP Audit: Focused Assessment (comprehensive, 6–18 months) or Quick Response Audit (issue‑specific).

VII. Top 5 High‑Risk Scenarios in DDP Mode & Compliance Advice

VIII. Compliance Checklist (Excerpt – 42 items)

A. IOR & Bond (6 items)

• IOR is the actual owner or its wholly‑owned US subsidiary – no borrowing

• IOR’s EIN activated with no violation record

• Continuous Bond purchased, amount ≥ 10% of annual duties & fees, min $50,000

• Bond issued by CBP‑approved surety

• Bond not saturated (claims < 80% of bond amount)

• If STB used, additional $10,000 ISF Bond purchased

B. AMS / ISF (8 items)

• NVOCC holds FMC OTI license and SCAC

• AMS filed >24h before loading; MBL/HBL data consistent; accurate cargo description

• ISF filed >24h before loading; “3Z” receipt obtained

• ISF manufacturer is actual factory, not trader

• ISF HS and origin match subsequent Entry

• ISF filing receipt archived for 5 years

C. Entry & Examination (7 items)

• Correct Entry type (01/11/23 etc.)

• CBP Form 3461 submitted within 15 days after arrival

• CBP Form 7501 submitted within 10 working days after release

• Sufficient funds prepared for duties, MPF, HMF

• Section 301 / AD / CVD applicability assessed

• Contingency plan for exam (supplemental docs, CES cost budget)

• Truck booked for pickup within free time – avoid demurrage/detention

D. Post‑Entry (6 items)

• Liquidation date tracked (Entry + 314 days)

• CF-28/29 responded within deadlines

• Reconciliation used if needed

• All records kept for 5 years

• Internal HTSUS database reviewed annually

• Prior Disclosure considered for historical errors

IX. Conclusion

US import clearance is not merely “pay and release”. It is a compliance chain centered on the IOR. While DDP is convenient, Chinese exporters must abandon the “borrowed IOR” shortcut and return to true IOR + self‑owned bond + accurate declaration.

We strongly recommend establishing an internal US clearance SOP, attending CBP trainings, and engaging professional advisors for periodic compliance audits. Only by controlling risks before loading can you thrive in the competitive US market.

Disclaimer: This article is based on CBP regulations and enforcement practices as of May 2026 for reference only. For specific operations, consult a licensed US Customs Broker or attorney.