Ordering PCBs before a tariff exclusion expires

A tariff exclusion that has covered your board orders for years is about to lapse, and every vendor blog gives a different version of what happens next. You have a design that is nearly done and a fab order you could place now or in three weeks. The question is whether to rush it.

Short answer: find out whether the deadline applies to your board at all, then decide. Do not release a design early because of a date you have not checked.

What the deadline actually is

USTR’s Section 301 investigation of China’s technology transfer, intellectual property and innovation practices carries a set of product-specific exclusions. USTR extended all 178 of them until November 10, 2026. The Federal Register notice puts the cutoff at 11:59 p.m. eastern daylight time on November 9, 2026. That is the same moment described two ways, and the notice text is the one to rely on.

Two details in that notice matter more than the date.

First, it does not list products. Each exclusion is defined by a ten-digit tariff number and a product description in the notice’s referenced HTSUS notes. Second, the exclusions have been renewed in short steps before. We found no announcement of a further extension as of this writing, and we found no announcement that one is ruled out. Treat both outcomes as possible.

We also could not confirm from the notice itself whether bare printed circuit boards are among the 178. Several vendor blogs say they are. We did not find that in the primary text, and the notice does not mention them by name. This is the single most important thing to settle before you change any plans.

Check whether your board is covered

A bare board, a populated board, and a finished product can all sit under different tariff numbers. Exclusions apply only when both the ten-digit number and the description match. A heading-level match is not enough.

1. Get the classification from your broker. Ask which ten-digit number they declare for the item you actually import: bare boards, a populated assembly, or a finished unit. Do not use the number a fab’s website suggests.
2. Look the number up yourself. The USITC tariff search shows the current schedule, including the Chapter 99 notes that hold the exclusions. Read the description, not just the number.
3. Confirm the origin. Section 301 duties follow where a good is made, not where it ships from. CBP’s Section 301 FAQ says so directly, and it describes how Chapter 99 numbers are reported alongside the normal classification at entry. A board fabricated in one country and assembled in another needs an origin answer from your broker, not a guess.
4. Ask about other duty programs. CBP’s FAQ notes that a product covered by a Section 301 exclusion can still owe duties under separate programs. An exclusion lapsing is one change. It may not be the only line on the invoice.

If your broker says the board is not covered by an exclusion, the deadline changes nothing for you and you can stop worrying about it.

If it does apply, what changes in the ordering plan

Assume the exclusion covers your board and is not renewed. The date that matters is when the goods enter the country, not when you place the order or approve the Gerbers. Ask your broker how the entry date is applied to your shipment, including what happens if the boards are in transit or held at the port on the cutoff date.

That has three practical consequences for a small-batch buyer.

An order placed today may still enter after the cutoff. Fabrication, panelization and shipping all take time, and the schedule varies by fab, stack-up and season. If you cannot show that the goods will clear before the date, an early order has bought you nothing but a design you froze too soon.

Pulling forward a future run is a different decision. Buying extra boards to cover next quarter means paying for inventory that may sit. That is a cash and risk call. Bare boards store well when properly packed, but a layout that changes in the next revision turns them into scrap. If the design is still moving, the extra boards are a bet that it will not.

Moving the fab is slower than it looks. Shifting to a fab in a different country changes the origin answer, but it also changes stack-up options, controlled-impedance tolerances, finish choices and the assembler’s incoming-inspection assumptions. Re-qualifying a board at a new fab is real work. It is rarely a safe move to make in the last two weeks before a deadline.

Whatever you choose, get the broker’s answer in writing and keep it with the order. If the duty is assessed later and the classification is disputed, you want the record.

What not to rush in the design

The risk with a deadline is that it pressures people to release files that are nearly right. A bare board is the cheapest place to find a mistake and the most expensive place to ignore one. A tariff is not a reason to skip any of the following.

• A fabrication-file check. Run a clean DRC, read the drill file, look at the paste layer, and open the Gerbers in a second viewer. Our note on checking KiCad fabrication files before you send them covers the specific items.
• Footprint review against the real part. A land pattern drawn from memory costs a respin. That is the failure no tariff saving will offset.
• Test access and programming pads. These are very hard to add after boards exist. If you are unsure what to include, the list in what test points and programming pads a board needs is a starting point.
• Assembly information. If the boards will be populated by an assembler, the BOM, pick-and-place data and any alternates should be ready when the boards are, so the bare boards do not sit waiting on parts. What to send for a PCB assembly quote lists the package.

If the design is not ready, the cleaner option is often to let the date pass and plan around whatever the duty turns out to be. A known duty on a good board beats a saved duty on a board you have to remake.

Where this leaves a small hardware company

Four things, in order:

1. Ask your broker which tariff number and origin apply to the specific item you import.
2. Check that number against the exclusion notice and the current schedule. Do not rely on a vendor blog, including ours.
3. If it applies, decide with the entry date in mind, and decide on inventory separately from the design.
4. Do not release an unfinished design to beat a date.

We are an engineering shop, not a customs broker, and none of this is legal advice. What we can do is get the design side ready: files checked, assembly data complete, and a clear list of what is still open. If you send us the board files and the date you are working against, we will tell you what is ready to release and what is not.

Sources used above: the USTR press release, the Federal Register notice 2025-21671, the CBP Section 301 FAQ, and the USITC tariff search.