U.S. market-access documents · 16
A Level VI mark is only the label: match the power adapter to DOE records and the importer
For U.S.-bound external power supplies, the Level VI mark, DOE certification record, basic-model scope, test data and importer responsibility need to describe the same product.
Executive summary
The Level VI numeral identifies an energy-efficiency tier for a U.S.-regulated external power supply. The useful compliance trail links the product scope, applicable 10 CFR 430.32(w) limits, DOE test data, the correct CCMS basic model or design family, and the named manufacturer or importer. DOE’s public database republishes manufacturer-submitted information rather than granting product approval. For buyers, the decisive check is whether the quoted model, every output mode and the responsible U.S. importer match one current filing. ZIMONAI’s editorial view is that Level VI becomes meaningful procurement evidence only when those links are documented.
- 01
DOE currently directs covered external power supplies to 10 CFR 430.32(w), which sets active-mode and no-load requirements and requires the applicable international efficiency mark.
- 02
Certification is organized around a basic model or design family, so the retail model number and all relevant output voltages must be traceable to the filed scope rather than inferred from a shared enclosure.
- 03
The U.S. importer is treated as a manufacturer under EPCA and retains compliance responsibility even when the overseas OEM or a laboratory submits the CCMS report on its behalf.
What does the Level VI mark actually describe?
DOE defines an external power supply by function: it converts household electricity into DC or lower-voltage AC to operate a consumer product, subject to specific exclusions. The current DOE product page points covered units to 10 CFR 430.32(w) and Appendix Z. Under the present table, direct-operation external power supplies generally follow Level VI active-mode efficiency and no-load limits; covered units must carry the corresponding international efficiency marking.
The Roman numeral therefore communicates an efficiency level, not the whole U.S. compliance story. Product classification still matters: direct and indirect operation, AC-to-DC or AC-to-AC output, single or multiple voltage, output power, intended end product and any exemption can change the applicable route. A familiar wall-charger shape is not enough to classify a model.
How should the CCMS record match the quoted adapter?
DOE says covered basic models must be certified through the Compliance Certification Management System before distribution in U.S. commerce, annually thereafter, and again when a design change increases energy use or reduces efficiency enough that existing test data no longer supports the rating. A basic model may group units that differ only in non-energy-related characteristics such as colour; a design-family filing must still identify the individual manufacturer model numbers it covers.
For external power supplies, 10 CFR 429.37 requires public product information such as average active-mode efficiency, no-load power and nameplate output power. Adaptive units report the relevant values at the highest and lowest nameplate output voltages. A buyer should therefore match the supplier’s full retail model, input, each advertised output voltage and current, product group and filing party to the record—not stop at a visually similar casing or a copied Level VI symbol.
- Full manufacturer and retail model numbers, including suffixes
- Basic model or design family used in the certification
- AC/DC type, direct or indirect operation and output-power class
- Highest and lowest voltage profiles for adaptive supplies
- Reported active-mode efficiency and no-load power
- Certification party, submission status and current model record
Who is responsible when the adapter is made in China?
DOE’s importer guidance states that an importer is treated as a manufacturer under EPCA. An overseas OEM or third party may submit a certification report, but the importer must authorize that submission and be identified as the importer or certifier. The importer remains responsible for ensuring that the covered product is tested, certified and compliant before importation.
DOE also warns that appearance in the public database is not DOE approval and carries no agency warranty about the manufacturer-submitted information. ZIMONAI’s practical reading is to connect four records before purchase: the importer’s identity, the CCMS submission or ticket, the DOE-procedure test data supporting the filing, and the supplier’s change-control record for the production adapter. That chain shows who filed what for which product; it still needs shipment and production evidence to support the units being bought.
Buyer checklist
Buyer checklist
- Complete adapter model and every private-label or regional suffix
- Nameplate input, output voltages, currents and maximum power
- Written scope classification and any claimed exemption
- DOE public-database record and the underlying CCMS submission or ticket
- Basic-model or design-family mapping to the retail model
- DOE Appendix Z test data and the units represented by the sample
- U.S. importer or manufacturer identified as the responsible certifier
- Authorization when an OEM, laboratory or third party filed the report
- Change control for transformer, controller, firmware, enclosure and output profiles
Sources and evidence
Sources and evidence
Facts in this note were checked against the following primary and independent sources. Links open the source publisher’s website.
- 01U.S. Department of EnergyExternal Power Supplies — current standards and test procedure
- 02Electronic Code of Federal Regulations10 CFR 430.32(w) — energy conservation standards and efficiency marking
- 03Electronic Code of Federal Regulations10 CFR 429.37 — external power-supply certification reports
- 04U.S. Department of EnergyImplementation, Certification and Enforcement — CCMS and public database
- 05U.S. Department of EnergyConservation Standards Enforcement — Importer Q&As
- 06U.S. Department of EnergyConservation Standards Enforcement — U.S. Manufacturer FAQs