Transpacific (North Pacific)
No canal or Red Sea passage, but a North Pacific crossing where winter storms have collapsed container stacks.
North America · sea freight from Ningbo
Shipping from Ningbo to Redwood City
Ningbo to Redwood City
East China Sea · Korea Strait · Sea of Japan · Tsugaru Strait · North Pacific
- NingboChina origin
- East China Sea
- Korea Strait
- Sea of Japan
- Tsugaru Strait
- North Pacific
- Redwood CityUnited States
This route runs from Zhejiang's battery and energy-storage makers via Ningbo-Zhoushan, then follows the open North Pacific, where weather is the main risk; at the far end is the port of Redwood City.
The US side starts with two filings due before loading and ends with a road leg that must carry a live emergency number. The 6 points below are particular to this lane; each comes with what we do and the paperwork it touches.
What we need to start
- Zhejiang MSA battery guide 2026
- Beilun / Meishan export
- Supply-chain tracing file
- HTS code 8507.60
- ISF filer
Route profile
What sets Ningbo → Redwood City apart
United States
Section 301 duty on Chinese lithium-ion batteries at 25% since January 2026, UFLPA scrutiny of lithium supply chains, ISF 24 hours before loading, and a US-only marking rule for SP188 packages.
Where this route gets difficult
6 pain points from Ningbo to Redwood City
They run from the Ningbo terminal through the voyage to Redwood City and the United States import file.
- Origin port
Fewer MSA papers at Ningbo, but the carrier still wants the UN38.3
Zhejiang MSA's January 2026 battery guide lets the shipper skip the UN38.3 test summary at the MSA cargo-report stage (it goes to the carrier instead) and skip resubmitting the safety data sheet for the same maker, owner and model. The carrier, however, must still check the documents and refuse batteries that do not meet the ship-carriage standard JT/T 1543-2025.
What Anxin does: We send the UN38.3 summary and SDS to the carrier with the booking request, and keep a per-model file so repeat shipments use the SDS already on record.
- Origin port
Feeder from a Zhejiang river port: one cargo report, if done right
Zhejiang MSA runs a 'one-document' rule for battery water-to-water transhipment: if the cargo report is made at the port of loading, only a ship report is needed at the transhipment port. Cargo barged into Ningbo can therefore avoid a second cargo report, provided the first one was filed correctly.
What Anxin does: When cargo starts on a feeder or barge, we make sure the cargo report is filed at the first port of loading and carries the ocean routing, so no second cargo report is needed at Ningbo.
- Sea corridor
An open-ocean crossing where weather is the main risk
From Ningbo the drawn corridor to Redwood City runs across the North Pacific without a canal or Red Sea passage, so weather replaces chokepoints as the risk. The ONE Apus, bound from Yantian to Long Beach in November 2020, had a stack collapse in a storm about 1,600 nautical miles north-west of Hawaii; her owners said more than 1,900 containers could be lost or damaged, up to 40 of them hazmat.
What Anxin does: For winter sailings especially, we review blocking and bracing on stuffing photos against the CINS points before sealing, and make sure the DG declaration is complete, so a damaged box can be identified and handled correctly.
- Import country
ISF closes 24 hours before loading in Ningbo
The Importer Security Filing must reach CBP no later than 24 hours before the container is laden aboard the vessel abroad. CBP's liquidated damages guidelines provide for a claim per violation for late, inaccurate or incomplete filings. Two of the data elements, the container stuffing location and the consolidator, only exist once the box is packed.
What Anxin does: We send the importer's ISF filer the stuffing location, consolidator and manufacturer details as soon as the container is packed in Ningbo, ahead of the vessel's loading window.
- Import country
California's battery-embedded product rules since January 2026
Under California SB 1215, consumers have paid a recycling fee on covered battery-embedded products since 1 January 2026, and those products must be labelled with the maker's name or brand and the battery chemistry, or give that information on the maker's website. Manufacturers must also list covered and exempt products in an annual notice to retailers and CalRecycle.
What Anxin does: If the goods landing at Redwood City are devices with built-in batteries for sale in California, we ask the brand owner to confirm the chemistry labelling and the CalRecycle notice before shipping.
- Import country
E-bike batteries for California need an accredited test
Since 1 January 2026 California SB 1271 bars distributing or selling an e-bike, powered mobility device or its storage battery unless the battery has been tested by an accredited laboratory to a standard referenced in UL 2849 or EN 15194, and the laboratory's logo and the test standard are displayed. Importers must hand over the test report on request.
What Anxin does: For e-mobility batteries arriving at Redwood City for the California market, we ask for the accredited test report and label photos before booking.
Documents & compliance
What to have ready: Ningbo to Redwood City
These documents come from the shipper, the manufacturer and the importer. Anxin checks them against each other; it does not issue test reports, safety data sheets or import certificates.
Before loading in Ningbo
- UN38.3 test summary for the carrier (not required at the Zhejiang MSA cargo-report stage)
- Customs packaging use-appraisal result for the dangerous goods packaging (with the maker's performance appraisal)
- Container packing certificate signed by a certified packing inspector after supervised stuffing
- Transport-condition classification report where applicable
- Load plan showing even weight distribution (no more than 60% of the cargo weight in either half of the container length)
For the shipping line
- Stuffing photos before, during and after packing, checked for blocking and bracing
- SP188 cartons: US 'forbidden aboard passenger aircraft' marking or CAO label
- UN 38.3 test summary for every cell and battery type
For import into United States
- ISF filer named; stuffing location and consolidator sent right after packing
- CPSC certificate data and eFiling arrangement, if the product is subject to certification
- 24-hour emergency response number (and provider reference) for the US road leg
Before you book
Match the details first
We line up UN numbers, model names and package counts across the Ningbo filings, the booking with the carrier and the documents for United States before the booking is confirmed, so that a mismatch is fixed at origin rather than discovered at Redwood City.
Carriers we book with
Our booking panel; availability on this lane and acceptance of the declared UN numbers are confirmed for each booking. It does not mean that a listed carrier runs a direct service on this route. Carrier choice depends on the trade lane, cargo classification and each carrier's dangerous-goods acceptance at booking. The final carrier is confirmed on the booking.
Risk & mitigation
Risk table for Ningbo → Redwood City
| Risk | Where | Mitigation | Who acts |
|---|---|---|---|
| Carrier rejects booking over UN38.3 / JT/T 1543-2025 documents | Ningbo booking stage | UN38.3 summary and SDS sent with the booking request | Shipper with Anxin |
| Stack collapse or cargo shift in a North Pacific storm | Mid-Pacific | Blocking and bracing checked before sealing; complete DG data for incident response | Packing site / carrier, checked by Anxin |
| Late or inaccurate ISF | Before loading abroad | Stuffing and consolidator data sent to the ISF filer immediately after packing | Anxin with the ISF filer |
Questions
Ningbo → Redwood City: questions we are asked
Yes, if the container moves on a public highway. The IMDG waiver in 49 CFR 171.25(d)(2) only covers cargo that stays on the ship or moves between vessels; otherwise 49 CFR 172.604 requires a monitored number answered by someone with the emergency information. Goods shipped as 'Battery powered equipment' are exempt.
Weather is the main risk on this crossing: NOAA recorded hurricane-force North Pacific storms from October to April, most often in December. We tighten the packing checks for those sailings.
Yes. Zhejiang MSA's 2026 guide removed it from the MSA cargo-report stage, but it still has to go to the carrier, which must refuse batteries that do not meet JT/T 1543-2025.
References
Where these points come from
- 19 CFR 149.2 – Importer security filing: requirement and time of transmission (eCFR / CBP)
- 49 CFR 171.25 – Additional requirements for the use of the IMDG Code (eCFR / PHMSA)
- 49 CFR 172.604: Emergency response telephone number (eCFR / PHMSA)
- Update: Certificates of Compliance and eFiling (U.S. Consumer Product Safety Commission)
- Hurricane force extratropical cyclones observed using QuikSCAT (Mariners Weather Log 49-1) (NOAA Ocean Prediction Center)
- Container ship ONE Apus; North Pacific Ocean (incident record) (NOAA IncidentNews)
- Battery products waterway transport safety guide (Chinese), January 2026 (Zhejiang Maritime Safety Administration)
- Export dangerous goods packaging inspection: service guide (Chinese) (General Administration of Customs of China (Lanzhou Customs service guide))
Next step
From enquiry to import
- 1EnquiryCargo, origin, destination
- 2Documents checkUN 38.3, SDS, packing
- 3BookingAfter carrier acceptance
- 4HandoverAt Ningbo
- 5ImportClearance at Redwood City
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After you send it
We check carrier acceptance for Ningbo → Redwood City before any booking, and ask for missing battery documents first.
All destinations from Ningbo · United States ports
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