FCC Power Inverter Ban Turns on Connectivity and Model History
FCC's power inverter ban does not reach every inverter because connectivity and Buy American origin set coverage, while prior authorization sets market effect. Manufacturers and importers now need architecture, origin, and authorization records before equipment authorization.
Primary lensTrade policy
Sub-topicPolicy monitoring
Evidence base22 records used
Use casePolicy monitoring
The first practical question after the FCC added foreign-produced power inverters to its Covered List is not whether an inverter came from China. It is whether a particular model falls inside a product definition built around connectivity and fails a federal procurement origin test. If it does, FCC authorization history sets the immediate consequence. A brand list, an HTS code, or a country marking does not answer that sequence.
The July 28 action did not remove every imported inverter from the market. Previously authorized models may still be imported, marketed, sold, and used. New covered models generally cannot receive the FCC authorization needed for those activities. The boundary runs through product architecture, production records, and authorization history.
The unusual feature is that the Executive Branch borrowed a federal-procurement origin test to help define access to the wider commercial market, and the FCC implemented that decision through the Covered List.
Which Power Inverters Are Covered by the FCC Ban
A covered power inverter is a bi-directional power device or system that converts direct current electricity to alternating current electricity, or alternating current electricity to direct current electricity, and contains components enabling remote communication, control, sensing, data collection, or monitoring. The definition names microinverters, string inverters, central inverters, and hybrid battery-based inverters. It also names Wi-Fi, cellular, and Bluetooth as examples of the relevant connections.
That product must also be foreign-produced. The determination defines that term by reference to the domestic-end-product test in FAR 25.101(a), not by the nationality of the parent company. A device or class of devices within the scope and term of a Conditional Approval from the Department of War or the Department of Homeland Security is excluded from the listed category.
For a qualifying COTS model outside the iron and steel category, U.S. manufacture remains required while the ordinary component-cost threshold is waived. A non-COTS model generally must satisfy the applicable component-cost test.
Authorization history answers a separate question. A connected foreign-produced model authorized before the July 28 Covered List addition may remain on the market, whether its authorization rests on certification or a Supplier’s Declaration of Conformity. A covered model lacking that prior authorization generally cannot receive a new authorization. The authorization does not change the product definition. It changes the present commercial consequence.
Those conditions should be treated as separate fields. Collapsing them into a single country-of-origin label will produce false positives and false negatives. A foreign-headquartered manufacturer may have a model manufactured in the United States that qualifies as a domestic end product. A U.S.-headquartered company may rely on an overseas production site and fail the same test. A foreign-produced connected model with prior authorization sits in a different position from its unreleased successor.
Connectivity Defines the Covered Inverter
The determination does not stop at power conversion. The listed remote functions are broad, so the coverage decision needs a model-level architecture record.
The relevant evidence is not a marketing page that says an inverter is smart. Engineering should record each radio, modem, wired interface capable of remote access, controller, telemetry path, cloud service, sensing function, data store, and optional gateway tied to the model. The record should say whether the capability is installed, enabled, optional, or separately supplied. The determination does not define the outer boundary of other similar connections, so uncertain interfaces should be identified rather than assumed in or out.
An inverter without the specified remote capabilities may fall outside this particular product definition even if it performs the same electrical conversion as a connected model. The FCC materials do not create a simple tariff classification for Customs to apply at the port. They create an equipment-authorization question that turns on what the device can do.
This is also why a family-level answer is risky. Two products sold under one series name may use different communication boards, firmware packages, or monitoring gateways. Distinct hardware, firmware, gateway, or FCC-ID configurations should be traced separately to the scope of the authorization and any Conditional Approval before a family-level conclusion is used.
Foreign-Produced Uses the FAR Domestic-End-Product Test
Foreign-produced means an article that does not qualify as a domestic end product under FAR 25.101(a). FAR 25.003 supplies the related domestic-end-product and component-cost definitions within Part 25, but the FCC has not separately explained how every acquisition-specific definition will operate in an equipment-authorization filing.
Under that FAR framework, a manufactured product that is not predominantly iron or steel starts with manufacture in the United States. It then generally requires the cost of components mined, produced, or manufactured in the United States to exceed 65 percent of the cost of all components for 2024 through 2028. The threshold rises to 75 percent for items delivered beginning in 2029. FAR 25.003 treats components of unknown origin as foreign.
Headquarters, U.S. design, software ownership, and labeling do not substitute for U.S. manufacture and, where applicable, a costed component-origin test.
Assembly declarations and uncosted bills of materials do not, by themselves, establish the FAR result. The origin file must connect the precise model to the U.S. manufacturing process, component origin and cost treatment, and the version of the FAR rule used.
The FCC determination does not explain how procurement concepts such as items delivered will apply to a commercial equipment-authorization filing or how the 2029 threshold transition will work. Until the FCC addresses those questions, the origin memorandum should identify the FAR version and threshold date used.
COTS Status Can Change the Calculation
A COTS item is a commercial product sold in substantial quantities in the commercial marketplace and offered to the government under a contract or subcontract without modification in the same form in which it is sold there. An inverter can be a commercial product without being COTS. Project-specific modifications, private-label variants, integrated systems, and configurations not sold in substantial quantities may produce a different answer.
If a model qualifies as COTS and is not in the iron or steel category, U.S. manufacture remains essential while the ordinary component-cost threshold is waived. If it does not qualify, the 65 percent calculation can become decisive. That fork should be resolved before anyone treats a foreign component share as disqualifying or assumes domestic assembly is enough.
FAR 25.003 defines the cost of a purchased component to include acquisition cost, transportation to the place of incorporation, and applicable duty. For a component manufactured by the contractor, the rule includes manufacturing costs and allocable overhead while excluding profit. This is not necessarily the same cost field used in a sourcing dashboard or Customs valuation file.
The model file should state the COTS conclusion and its basis.
Customs Origin Does Not Answer FCC Origin
FAR 25.001 expressly distinguishes the Buy American two-part test from substantial transformation under trade agreements and from a representation based only on place of manufacture. That distinction is now directly relevant to equipment authorization.
A Customs ruling or marking analysis may still be important for entry. It does not automatically prove that an inverter is a domestic end product under FAR 25.101(a). Conversely, an FCC origin analysis does not set the HTS classification, tariff rate, or marking result for the shipment.
The clean approach is to preserve both conclusions and show the bridge between them. The Customs file should identify the tariff classification, ordinary origin rule, valuation, and entry treatment. The FCC file should identify the connected-product definition, U.S. manufacturing facts, COTS status, component-cost calculation when needed, and authorization history. Shared facts can be reused, but the legal tests should not be merged.
This difference also separates the FCC action from a tariff. Paying duty cannot cure ineligibility for a new equipment authorization. A low or zero duty rate does not establish that a model may be marketed. The control point arrives before ordinary commercial importation or marketing. The responsible party must first determine the applicable authorization path. If certification is required, the application must include the covered-equipment statement under section 2.911.
Existing FCC Authorizations Preserve a Limited Model Runway
The FCC fact sheet states the current treatment of previously authorized models under the July 28 action. It says those models may continue to be imported, marketed, sold, and used. Consumers do not need to stop using devices they already own.
That protection belongs to an authorization history, not to a brand in the abstract. The portfolio should identify the applicable authorization record for each commercial item, including the certification grant and FCC ID or the Supplier’s Declaration of Conformity records and responsible party, together with model names, hardware versions, variants covered by or documented in that authorization record, and production configuration. Inventory should be mapped to that record before it is called grandfathered.
Pending applications are different. FCC rules require applicants to recertify before grant that the equipment is not covered if the Covered List changes while an application is pending. A filing submitted before July 28 did not lock in eligibility. If the model became covered before the grant, the new certification requirement reaches it.
Changes after authorization need their own review. For certificated equipment, the baseline FCC rules restrict permissive-change procedures for covered equipment. The Commission issued a same-day limited waiver for previously certificated robots and inverters, but the waiver is narrower than the headline promise of continued sales.
Through at least January 1, 2029, the waiver permits certain Class I and Class II software or firmware changes to previously certificated models that maintain functionality, remediate vulnerabilities, or preserve operating-system compatibility. It does not extend those permissive-change procedures to hardware changes. Class II filing, testing, and acknowledgment obligations still apply where required.
A security patch is therefore not the same problem as a new communication board or redesigned power stage. The former may fit the waiver. A hardware change to certificated equipment falls outside DA 26-789. It may be prohibited under sections 2.932(b) and 2.1043(b) absent separate relief, and a new authorization cannot be granted if the modified model remains covered. Product management should not use grandfathered as a synonym for freely changeable.
Existing grants are not permanent immunity. Section 2.939(e) permits a later public-notice process to limit further importation and marketing of previously authorized covered equipment without revoking the underlying grant. DA 26-635 used that process for equipment added in 2024 or earlier while expressly excluding 2025 and 2026 additions. That notice is precedent, not a present inverter restriction.
Federal Purchase and Use Remain Outside the Market Gate
The FCC says the July 28 Covered List action does not itself affect importation, sale, purchase, or use for the federal government. That exemption is limited to the FCC regime. It does not displace Buy American preferences, agency procurement rules, cybersecurity conditions, or other federal acquisition restrictions.
The origin test comes from a procurement rule that restricts federal buying, yet the FCC action uses it to block new covered models from the wider market. A model can therefore face different FCC consequences in commercial and federal channels without being automatically eligible for a government contract.
Traverse examined the opposite pattern in Chinese Memory Chip Rules Stop Short of a Private Purchase Ban (publication 2026-07-17). There, procurement and entity restrictions did not by themselves create a general private purchase ban. Here, the Covered List carries an equipment-authorization consequence that closes the new-model commercial path even though federal use remains available.
That contrast is useful because it stops teams from treating every national-security list as the same kind of instrument. The operative consequence depends on the authority attached to the list. In this case, the consequence is denial of a new authorization, not a general prohibition on possession and not a Customs embargo that applies identically to every shipment.
Conditional Approval Is the Express Relief Lane
The listing’s express exception for an otherwise covered new inverter is Conditional Approval from either the Department of War or the Department of Homeland Security. Approval may cover a device or class of devices and must precede ordinary FCC authorization.
The published guidance requires corporate structure, beneficial owners of at least five percent, board nationality and residence, foreign-government influence, a detailed bill of materials, and the origin of components, design, software, and firmware. It also asks who controls intellectual property and updates, where manufacturing, assembly, and testing occur, and where the supply chain has country concentration or single points of failure.
Applicants must also provide a time-bound U.S. manufacturing or onshoring plan, designate a point of contact or office responsible for it, and provide quarterly status updates. The plan must address U.S. facilities, headcount, and capital expenditure. The guidance does not prescribe device-level vulnerability testing or incident-response evidence, although the reviewing agencies may request additional material.
Applications must be submitted by January 1, 2028. Submission does not guarantee approval, and material changes or unmet approval conditions can affect continued eligibility.
Conditional Approval is not the same as being a domestic end product. It is an alternative route based on an agency risk finding. The model record should state which route supports eligibility and preserve the approval conditions that must remain true after authorization.
Import Exceptions Are Not Commercial Authorization
Current section 2.1204(a)(3) permits up to 4,000 units of a distinct unauthorized model for testing, evaluation, or product development, with a larger quantity possible on written approval from the FCC Office of Engineering and Technology. Other current conditions address trade shows, repair, re-export, federal government use, and specified purposes. None turns a covered model into an authorized commercial product.
The importer of record and ultimate consignee should identify the exact condition used, the number of units, their disposition, and the product identifier. Demonstration or development inventory should remain segregated from saleable stock. A testing exception is a controlled path for a defined use, not a bridge to ordinary distribution.
The rulebook may tighten. FCC 26-50’s Third Further Notice proposes a separate covered-equipment regime limited to a valid authorization, no more than 40 testing or development units unless the FCC approves more, import solely for export, exclusive federal use, or development of products exclusively for federal use. It separately seeks comment on narrowing or eliminating the personal-use exception for covered equipment. None of those proposed changes is final.
Build Three Linked Files Before the Lab
The fastest way to answer the new rule is to link an architecture file, an origin file, and an authorization and import file before an applicant seeks certification or relies on a Supplier’s Declaration of Conformity.
The architecture file should identify the electrical conversion function, remote capabilities, communication components, cloud dependencies, hardware and firmware versions, FCC-ID lineage, and whether a planned change is software, firmware, or hardware.
The origin file should identify the manufacturing location and operations, COTS conclusion, and costed component analysis when the FAR COTS exception does not apply. Supplier support must match the model version under review.
The authorization and import file should capture the existing authorization, any certification application pending on July 28, the limited software and firmware waiver for previously certificated models when applicable, any Conditional Approval, and the import condition used for noncommercial samples.
FCC Guidance and Future Proceedings Can Move the Boundary
FCC guidance on COTS status, the 2029 component threshold, manufacturing arrangements, and supplier evidence would materially change the cost of applying the FAR test outside procurement.
DA 26-789 determines which Class I and Class II software and firmware permissive changes previously certificated inverter models can receive, while section 2.939(e) provides a separate process that can reach further importation and marketing of earlier grants.
H.R. 9129 is an introduced robotics bill that has not been enacted and does not address power inverters. Its country-of-concern approach therefore should not be read into the country-neutral inverter entry.
Before treating inventory as saleable, confirm the product definition, the applicable FAR-origin path, and the model’s authorization lineage. A brand-level or shipment-level conclusion arrives too late for a rule that operates at the model-authorization gate.
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