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PCB Assembly in the USA: When Domestic Makes Sense
PCB assembly USA vs offshore: when ITAR, lead time, tariffs, IP and engineering access justify a domestic assembler, and how to compare landed cost.
by the HardwareMap editors4 min read
Contents
PCB assembly USA quotes usually cost more per board than offshore quotes, and that is the wrong comparison to make in isolation. Domestic assembly makes sense when export control, lead time, tariffs, IP exposure or engineering access outweigh the price gap. This note covers each case and how to compare landed cost. It sits under our PCB assembly guide.
When PCB assembly USA shops win
Export-controlled products. Defense articles and related technical data on the US Munitions List are governed by the International Traffic in Arms Regulations, 22 CFR Parts 120 to 130 (ITAR on eCFR). Sending controlled design files to a factory abroad, or to foreign-person staff, can itself be an export. Manufacturers of defense articles generally register with the State Department's Directorate of Defense Trade Controls (DDTC) under Part 122. Some assemblers state their status publicly: MacroFab in Houston lists itself as ITAR registered and ISO 9001:2015 certified. Whether your board is controlled is a question for export counsel, not for a blog post or a vendor's sales team. Dual-use items fall under the Export Administration Regulations, administered by the Commerce Department's Bureau of Industry and Security.
Lead time and iteration speed. A domestic quick-turn shop removes international shipping and customs clearance from every build. On a product doing weekly board spins, those days add up. Ground shipping in days, rather than air freight plus customs, matters most during bring-up.
Tariffs. Section 301 tariffs apply to many goods of Chinese origin (USTR tariff actions). The rate depends on the tariff classification of what you import, which you can look up in the Harmonized Tariff Schedule. Rates have moved repeatedly; check them on the day you compare quotes, with a customs broker, not from a figure in an article.
IP exposure. Assembly files reveal your full design: Gerbers, BOM and placement. Some founders keep early revisions domestic until patents are filed. That is a business judgment about risk, and your counsel can help weigh it.
Engineering access. A shop you can drive to is a shop where you can watch your first article, stand at the AOI station and fix a problem in an afternoon.
When offshore still makes sense
Domestic assembly is not the default answer. Offshore online services remain strong for:
- Prototypes with no export control, where price and stock matter more than shipping time.
- Consumer products where the final assembly, enclosure and packaging will be offshore anyway; moving only the PCB to the US adds a shipping leg.
- Boards whose parts are mostly made and stocked in Asia, where parts availability is better near the factory.
Offshore also has engineering depth that is easy to underrate. The large online services run high volumes of small orders, publish their process limits, and turn quotes in minutes. For a team that writes clean data packages and designs to the published limits, the time-zone cost is lower than it sounds.
Many startups split: prototypes and controlled builds at home, cost-sensitive production with an offshore electronics contract manufacturer once the design is stable.
Comparing landed cost
Compare per good board, delivered to your door. A worked shape, per board at 500 units:
Fill the table with your real quotes and your own failure rate. For many small runs, the gap is smaller than the quoted price suggests. For high-volume consumer boards, offshore usually still wins. Our PCB assembly cost note covers what goes into each quote line.
Requirements by product type
What tends to push a program toward a domestic assembler depends on the market it sells into. The requirements below are named so you can check them with counsel, customers and test labs; whether they apply to your product is not something this table can tell you.
None of these require a US factory by themselves, except where export control limits who may see the design. They do narrow the list of assemblers that can build for you, and a qualified domestic shop is sometimes the fastest one to find.
Choosing a domestic assembler
Domestic shops range from online platforms to regional contract manufacturers. Online services such as MacroFab quote in a browser. Quick-turn specialists such as Screaming Circuits in Canby, Oregon, focus on prototypes and low volume; see prototype PCB assembly for that stage. Regional contract manufacturers take over at production volume.
Questions to ask any of them:
- Which certifications do you hold: ISO 9001, AS9100 for aerospace, ISO 13485 for medical? Can I see the certificates?
- Are you registered with DDTC, if my program needs it?
- Which IPC-A-610 class do you build to by default, and are your inspectors IPC-certified?
- Do you have SPI, AOI and X-ray in-house?
- Where are parts sourced, and can you provide country of origin per line?
Certificates can be checked with the issuing body; the IAF CertSearch database covers many accredited ISO certifications. The full audit is in how to choose a contract manufacturer.
Continue with Military PCB Assembly: ITAR, Traceability, and Who Qualifies.
Frequently asked questions
Is PCB assembly in the USA more expensive?
On the quote, usually yes. Domestic labor and overhead cost more, and online services in Shenzhen buy parts at scale. The gap narrows once you add shipping, import duties, tariffs, the engineering time lost to time zones, and the cost of a bad build that takes weeks to replace. Compare landed cost per good board, not the quoted price per board.
Does ITAR require US-based PCB assembly?
ITAR controls defense articles and technical data on the US Munitions List, and restricts sharing them with foreign persons without authorization. Manufacturers of defense articles in the US generally register with the State Department's Directorate of Defense Trade Controls. Whether your board is covered is a legal question about your specific product. Ask export counsel, and ask assemblers for their registration status.
How do tariffs affect PCB assembly costs?
Section 301 tariffs apply to many China-origin goods imported into the United States, and the rate depends on the product's tariff classification. Assembled boards, bare boards and finished devices can classify differently. Rates have changed several times since 2018. Check the current classification and rate with a customs broker before comparing a domestic quote against an offshore one.
How do I find PCB assembly near me?
Start with the online US services, which ship nationwide, then search your region for quick-turn and low-volume assemblers. Visit any shop you plan to use for production. Ask for its quality certifications, its IPC-trained staff, its equipment list and a sample of its inspection reports. A short drive to a factory is often worth more than a lower price on a quote.
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