Why Harness Shops Get Pulled In
Wire harnesses and cable assemblies are in nearly every defense platform, from ground vehicles and avionics to shipboard and communications equipment. Primes and tier-one suppliers flow down requirements to the harness maker, often including drawings marked export-controlled or CUI. Even a quote request can carry controlled technical data.
That means your estimating, ERP, email and file shares are within scope the moment those drawings land. Many shops discover this at their first audit or when a prime asks for evidence of a cybersecurity assessment.
- Drawings with export control or distribution markings
- DFARS 252.204-7012 and related flow-downs in the PO
- Questions about CMMC level and assessment status
- Requests for a technology control plan
ITAR in Practice: Access and Handling
ITAR controls defense articles and related technical data. Whether your shop must register with the State Department's DDTC depends on whether you manufacture defense articles, and counsel or your prime's guidance should settle that. Regardless of registration, you must not give foreign persons access to the technical data and must prevent uncontrolled transfers.
In practice this means restricting user accounts, limiting where drawings are stored, controlling email and cloud tools, and training staff. A technology control plan documents who may access what and how.
CUI, DFARS 7012 and CMMC Level 2 at the Level of a Small Shop
204-7012 requires adequate security aligned with NIST SP 800-171, incident reporting and the use of cloud providers that meet FedRAMP Moderate-equivalent requirements. The CMMC program turns those requirements into assessed levels, with Level 2 covering the 110 practices from NIST SP 800-171 for CUI. For a small shop the work is mostly scoping: define the enclave where CUI lives, limit systems inside it, and put multifactor authentication, logging, encryption, patching and access controls around that enclave.
A smaller boundary is cheaper to defend and to assess. Many shops get help from a state MEP center, which is a good first call.
- Define a CUI boundary and keep it small
- Multifactor authentication and role-based access
- Encryption at rest and in transit
- Logging, patching and incident response plan
- System security plan and documented policies
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ITAR AI Workload Compliance Assessment
Score your AI deployments across eight dimensions of ITAR exposure, from technical data classification and US persons access control to technology control plan coverage.
Where ERP, Quoting and AI Create Exposure
Estimators copy drawings into spreadsheets, attach them to ERP records, email them to vendors for pricing and sometimes drop them into public AI tools to speed things up. Each of those is a potential uncontrolled transfer or a system pulled into the CUI boundary. Decide where controlled drawings live, which ERP modules and users may see them and how vendor RFQs for controlled parts are handled.
If you use AI, run it inside your boundary on your own hardware or a compliant private environment, with the same access controls as the drawings.
How an On-Prem AI Setup Supports Your Obligations
Netray deploys open-weight models on customer-controlled GPUs, with retrieval over the ERP and documents the customer already holds, and respects the existing ERP roles. That architecture avoids sending controlled data to third-party APIs and lets the customer apply their own access control and logging. It does not make anyone compliant on its own: Netray does not hold ITAR registration or CMMC certification, and the customer remains responsible for their program, system security plan and assessment.
When Not to Overbuild
If you build only commercial or medical harnesses and receive no controlled data, do not build a CUI enclave for imagined requirements. If you receive controlled data only occasionally, handle it in a small, well-defined environment instead of bringing the whole company in scope. Ask your prime which data is actually controlled before you design controls.
Frequently asked questions
Does a wire harness manufacturer need CMMC certification?
If you handle CUI under a defense contract, you will be subject to the CMMC level the contract requires, with Level 2 applying to most CUI handling. The requirement arrives through contract clauses, so check what your prime flows down. Scoping the CUI boundary tightly is the main cost control.
Is a harness drawing ITAR controlled?
It can be, if it relates to a defense article on the U.S. Munitions List. The drawing marking and your customer's guidance indicate this. Treat marked drawings as controlled, restrict access to U.S. persons as required and confirm your registration status with counsel.
Can I use cloud AI tools on defense harness drawings?
Generally not on controlled or CUI data unless the service meets the applicable requirements and your contract allows it. Public AI tools create uncontrolled transfer risk. Run AI inside your controlled environment, and check with your prime and counsel.
If you want AI over your ERP and drawings without moving controlled data outside your boundary, Netray can walk through an on-prem architecture with your IT lead.