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NADCAP Special Process Accreditation Sourcing Around Salem, Oregon
Special processes are where aerospace and defense parts are made or broken, and NADCAP is the accreditation that proves a processor controls them to industry standard. The mid-Willamette Valley around Salem is rich in machining and fabrication but thin on NADCAP-accredited special processes, so a buyer's real task is understanding how to combine local capability with the accredited processing chain. This guide explains what NADCAP covers, how it differs from a quality certificate, and how to source it from the Salem area.
NADCAPAS9100ISO 9001
What NADCAP accredits and why it is process-specific
NADCAP, the National Aerospace and Defense Contractors Accreditation Program, accredits special processes rather than companies as a whole. A special process is one whose result cannot be fully verified by inspecting the finished part, so it has to be controlled at the process level. Heat treating, welding, nondestructive testing, chemical processing and surface treatments, nonconventional machining, and materials testing are the major categories, and a processor earns accreditation for each specific process and often each specific specification.
This process-specific nature is the most important thing for a Salem-area buyer to grasp. A processor is not 'NADCAP accredited' in general; it is accredited for, say, fluorescent penetrant inspection or vacuum heat treating to particular prime and industry specifications. When you need a process performed, you must match your exact requirement to the processor's accredited scope, because accreditation for one process says nothing about another.
The audits behind NADCAP are notoriously rigorous, conducted against detailed checklists with deep technical scrutiny and a merit-based audit interval that lengthens only as a supplier proves sustained compliance. That depth is precisely why aerospace primes mandate NADCAP for their special-process supply chains and why the accreditation carries the weight it does.
The Salem-area reality: machining local, special processes regional
Salem's manufacturing strength is in CNC machining, welding-fabrication, and assembly for commercial markets like food equipment, timber, and renewables. NADCAP-accredited special processing, by contrast, concentrates where aerospace volume justifies the investment, which in the Pacific Northwest tends to mean the Portland metro and the broader regional aerospace network rather than the mid-valley itself.
The practical pattern, therefore, is that a Salem-area buyer machines or fabricates a part locally, then routes special processes such as heat treat, anodize, or NDT to NADCAP-accredited processors regionally. Sometimes the local machine shop manages that routing as part of a turnkey package; other times the buyer manages the chain directly. Either way, the special-process step almost always leaves the immediate Salem area.
This is not a disadvantage so much as a sourcing structure to plan around. Freight within the Pacific Northwest is fast, and the machining-local, processing-regional split is standard practice across the industry. The buyer's job is to make sure every special-process link is genuinely NADCAP accredited for the exact specification required, and that the part's traceability survives every transfer between the Salem shop and the regional processors.
Matching your specification to accredited scope
The single most common NADCAP sourcing error is assuming an accreditation covers more than it does. NADCAP accreditation is granted process by process and frequently specification by specification, so you must confirm the processor's scope includes the exact process and the exact specification your drawing calls out. A heat treater accredited for one alloy and cycle may not be accredited for yours; an NDT house accredited for penetrant inspection may not hold radiographic accreditation.
The authoritative way to verify is through eAuditNet, the Performance Review Institute's system that lists NADCAP-accredited suppliers and their accreditations. A buyer or your prime can confirm the processor's current accreditation status and scope there. Treat any processor not listed in eAuditNet for your specific process as unaccredited for your purposes, no matter what they claim.
Beyond the lookup, confirm the chain holds together. Your AS9100 machine shop near Salem should maintain an approved supplier list that tracks the NADCAP status of each special-process vendor it uses, with the relevant specifications captured. When you qualify the arrangement, ask to see that list and verify it against eAuditNet for the processes your part requires. This is where a disciplined supplier distinguishes itself: the routing of special processes is documented, the accreditations are current, and the specification match is exact rather than approximate.
Frequently Asked Questions
NADCAP-accredited special processing is uncommon directly in Salem because the city's manufacturing base is oriented toward commercial markets like food processing equipment, timber products, and clean technology rather than the aerospace volume that justifies investing in NADCAP accreditation. The mid-Willamette Valley is strong in CNC machining, welding, and fabrication, but special processes such as heat treating, anodizing, and nondestructive testing to aerospace standards tend to concentrate in the Portland metro and the broader Pacific Northwest aerospace network. For a Salem-area buyer, this means the realistic sourcing structure is to perform machining or fabrication locally and route the special processes to NADCAP-accredited processors regionally. That is a standard and workable arrangement across the industry, and Pacific Northwest freight keeps the logistics fast. The important discipline is to verify each special-process link independently in eAuditNet for the exact process and specification your part requires, and to ensure the part's traceability and certifications survive each transfer between the local machine shop and the regional processor. Do not assume a local shop's broad capabilities include NADCAP processing; confirm the accredited scope at the specific processor performing each step.
NADCAP and AS9100 operate at different levels and are not interchangeable. AS9100 accredits a supplier's overall quality management system for activities like machining, fabrication, and assembly, covering how the company plans work, controls documents, manages nonconformances, and ensures traceability. NADCAP, by contrast, accredits specific special processes such as heat treating, welding, nondestructive testing, and chemical processing, because those processes produce results that cannot be fully verified by inspecting the finished part and therefore must be controlled and audited at the process level. The two work together in an aerospace supply chain rather than substituting for each other. A typical arrangement near Salem is an AS9100 machine shop that performs the machining under its quality system and routes special processes to NADCAP-accredited processors. The AS9100 shop is responsible for flowing requirements down to those processors and verifying their NADCAP accreditation. So when you source an aerospace part, you generally need AS9100 at the prime fabricator level and NADCAP at each special-process step. Confirming one tells you nothing about the other, which is why you verify both independently for the part's full process chain.
The authoritative source is eAuditNet, the database maintained by the Performance Review Institute, which administers NADCAP. It lists accredited suppliers along with the specific processes and specifications they are accredited for. The critical point is that NADCAP accreditation is granted process by process and often specification by specification, so a general claim of being NADCAP accredited is not enough. You must confirm the processor holds accreditation for the exact process your drawing calls out, such as a particular heat treat cycle or a specific NDT method, and for the exact specification referenced. A heat treater accredited for one alloy and cycle may not be accredited for yours, and a shop accredited for penetrant inspection may not hold radiographic accreditation. Verify the accreditation is current, since NADCAP runs on a merit-based audit interval that requires ongoing re-audits. Treat any processor not listed in eAuditNet for your specific process and specification as unaccredited for your purposes, regardless of marketing claims. Additionally, ask your AS9100 machine shop near Salem to show its approved supplier list, which should track the NADCAP status and applicable specifications of each special-process vendor it uses, and cross-check that against eAuditNet.
It depends on how you structure the buy, and clarifying this up front prevents traceability gaps. In a turnkey arrangement, the Salem-area machine shop manages the entire chain: it machines the part, routes it to the appropriate NADCAP-accredited processors for heat treat, surface treatment, or NDT, and delivers a finished part with all the special-process certifications consolidated. This is convenient and works well when the shop has a mature approved supplier list and disciplined flowdown. In a buyer-managed arrangement, you direct the part between the machine shop and the processors yourself, which gives you more control over processor selection but puts the burden of managing routing and traceability on you. Either way, two things must hold: every special-process link must be genuinely NADCAP accredited for the exact specification required, and the part's certifications and traceability must survive each transfer so the final data package is complete. When you set up the sourcing, decide explicitly who owns the chain, capture it in the PO and quality terms, and require that the responsible party maintain and produce the NADCAP verification for each step. Ambiguity about chain ownership is where aerospace traceability most often breaks down.
Last updated: July 2026
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