Shipping Building Blocks to the US: Without a CPC certificate, the goods are useless once they arrive
A couple of days ago, a client asked me, "Vilien, my 300 boxes of building blocks arrived at the Port of Los Angeles, but my freight forwarder says they can't clear customs and they need me to provide a CPC certificate. What is that?"
I said, "You're only asking this now that the goods have arrived at the port?"
He sounded a bit aggrieved: "The supplier said they have a certificate, and I thought that was enough."
And the result? The goods are stuck at the port, incurring hundreds of dollars in storage fees per day.
The so-called "certificate" provided by the supplier was just a template they filled out themselves; it didn't have a test report from a CPSC-accredited laboratory.
The goods can't be cleared, and returning them would be even more expensive. They had no choice but to bite the bullet and complete the testing and declaration, wasting almost a month and costing the client a significant amount of money.
It's a bit ironic, actually. This client had previously inquired about prices with me. At that time, he thought our quote was slightly too high and chose another company.
Now that things have gone wrong, he had come back to ask me what to do. He said something that really stuck with me: "If I had known earlier that the little expensive price you quote wouldn't even cover a fraction of my storage fees, I wouldn't be in this situation."
What could I say? I could only help him figure out how to salvage the situation and minimize the losses.
That's how this industry is. You don't see the differences until something goes wrong. Those few hundred dollars cheaper can turn into a hole of thousands of dollars.
A CPC certificate isn't just a piece of paper; it's a passport for your product to be safely sold.
Finding a freight forwarder isn't about who's cheapest; it's about who's reliable.
This isn't a joke; it actually happened last month.
What exactly is a CPC?
A CPC (Children's Product Certificate) isn't a certificate issued by an organization. It's a compliance declaration issued by the importer themselves, proving that your product has passed testing by a CPSC-accredited third-party laboratory and meets all children's product safety standards.
Simply put: signing this document is like telling U.S. Customs and U.S. consumers, "My goods meet the standards; I'll take responsibility if anything goes wrong."
What needs to do this? All products intended for children aged 12 and under are included. This includes building blocks, puzzles, plush toys, children's furniture, and baby products.
Contact our logistics expert: sales09@senghorlogistics.com
Core Standards (Building Blocks)
Building block toys primarily meet two standards:
1. CPSIA (Consumer Product Safety Improvement Act): Controls heavy metals and phthalates. Total lead in the substrate must not exceed 100 ppm, and in the surface coating, not more than 90 ppm. The total amount of the six phthalates must not exceed 0.1%.
2. ASTM F963 (Toy Safety Standard): The most fundamental toy safety standard in the United States, covering physical, chemical, and flammability safety. Products for children under 3 years old must pass a small parts test (parts that can pass through a 7mm diameter cylinder are not acceptable). Testing for the migration of eight soluble heavy metals is also required.
In addition, there are traceability labeling requirements: Product packaging must include the batch number, production date, and manufacturer information (including address) to facilitate traceability and recall in case of product problems.
From July 8, 2026: Without prior declaration, even with a certificate, it's useless.
This is the biggest change this year. Previously, CPC certificates only needed to be carried with the goods and were only checked during customs inspections. Now, this is no longer acceptable—a CPC electronic declaration (eFiling) must be completed through the ACE system before the goods arrive at the port.
Goods without an electronic declaration will be seized upon arrival; paper certificates are invalid.
The declaration requires seven pieces of data:
• Product ID (GTIN/UPC/SKU)
• Applicable CPSC safety standards
• Production date
• Manufacturing location (full name, address)
• Compliance testing date
• Testing laboratory information
• Recorder information.
Low-value goods, small parcels, and informal imports are not exempt. This also applies to cross-border e-commerce.
Consequences of not having a CPC:
In June 2026, a U.S. Customs announcement showed that approximately 40,000 children's products were subject to seizure proceedings for non-compliance within two months, with toys being the hardest hit. Large quantities of children's toys were seized at the ports of Los Angeles and Long Beach, mostly due to the lack of CPC documentation or the failure to complete eFiling.
The aforementioned client had 300 boxes of building blocks detained for over 20 days. Completing the testing and declaration process, storage fees, fines, and additional handling costs add up to tens of thousands of US dollars, resulting in a complete loss of profits.
The CPC certificate holder information doesn't match the importer's?
A single violation can result in a fine of up to $120,000.
Don't wait until the goods arrive to ask me what CPC is.
Testing isn't something that happens overnight. ASTM F963 and CPSIA testing for building blocks takes at least 2 to 4 weeks from sample submission to report issuance. Electronic certificate submission also takes time.
Before placing an order, ask the supplier: Has testing been done? Is the report issued by a CPSC-accredited laboratory?
Doing testing after the goods are ready will likely cause them to miss the shipping schedule. If you find out CPC wasn't done after the goods arrive, it's the same story above—a costly and time-consuming process.
CPC isn't a complicated certificate, but it's not just a certificate, it's a whole process—testing, issuance, and declaration—all three must be done correctly. Missing a step will freeze the goods.
If you currently have building blocks or children's products in stock and are unsure how to handle CPC, contact me directly. Don't wait until the goods arrive at the port to panic.
Send an email: sales09@senghorlogistics.com
About author: Vilien Wu, Salesperson from Shenzhen Senghor Sea & Air Logistics Co., Ltd. Specializes in traditional sea and air freight door-to-door services in markets such as Europe, the United States, Canada, and Australia. Has extensive practical experience in consolidating shipments and integrating shipments from multiple suppliers.
Since entering the industry, I've worked with many small and medium-sized importers and found that many foreign trade professionals have only a superficial understanding of logistics, with most of their experience gained through trial and error. Therefore, I've decided to share some real-world shipping cases and logistics knowledge to help more foreign trade professionals avoid pitfalls in the shipping process.
Whether a shipment can be successfully shipped depends on the freight forwarder's control and predictive ability at each stage. Choosing a reliable freight forwarder is crucial, but as a foreign trade professional, having some logistics knowledge yourself allows for better judgment and selection.
Welcome to contact me anytime if you have shipping needs or logistics questions
Post time: Sep-07-2026
