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Leveraging our core and differentiated strengths, we provide you with high-quality, comprehensive technology services

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Why Choose Us

We provide professional optical product testing services (laser product safety testing and performance parameter testing, photobiological safety testing for non‑laser products), as well as energy efficiency testing services (EU ErP energy efficiency testing, US DOE energy efficiency testing, California CEC energy efficiency testing), among others.

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If you have requirements for laser products (laser product safety testing and laser performance parameter testing) and energy efficiency testing (EU ErP energy efficiency testing, US DOE energy efficiency, California CEC energy efficiency, UK energy efficiency testing), please feel free to email us at: admin@ctnt-cert.com

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Shenzhen Zhongwei Testing Technology Co.,Ltd.

By applicable region
Complete U.S. Energy Efficiency Compliance Solution

Complete U.S. Energy Efficiency Compliance Solution

Shenzhen CTNT Zhongwei Inspection (CTNT) provides a complete solution that fully addresses the energy efficiency requirements of the U.S. Department of Energy (DOE) and the California Energy Commission (CEC), ensuring your products compliantly enter markets across all U.S. states. The U.S. energy efficiency regulatory system covers federally mandatory DOE certification (10 CFR Parts 430/431, applicable to all 50 states) and the stricter California CEC certification (Title 20). We offer end‑to‑end one‑stop services for manufacturers, importers, brand owners, and distributors – from market analysis, test planning, simultaneous DOE/CEC certification, FTC energy labeling, database listing, to ongoing maintenance. Backed by CMA/CNAS/IAS accredited laboratories and a team of experts proficient in both federal and state regulations, we achieve “one test, multiple certification use” through a scientific test plan, significantly reducing costs and shortening timelines. Choose CTNT – accurately meet the multi‑level U.S. energy efficiency market access requirements and ensure your products successfully enter the U.S. market.



Complete U.S. Energy Efficiency Compliance Solution

Complete U.S. Energy Efficiency Compliance Solution

Fully addressing U.S. Department of Energy (DOE) and California Energy Commission (CEC) energy efficiency requirements – providing end‑to‑end services from testing verification, certification listing, to energy labeling, ensuring your products compliantly enter markets across all U.S. states.

We are proficient in both federal and state energy efficiency regulations and provide tailored compliance solutions to help you precisely meet U.S. market access requirements.


I. Multi‑level energy efficiency requirements you must understand to enter the U.S. market

The U.S. energy efficiency regulatory system includes federal mandatory requirements and state‑specific regulations. Your products must satisfy all requirements at the applicable levels:

1. U.S. DOE Certification

  • Regulatory nature: Federally mandatory

  • Core requirements: Minimum energy efficiency standards (including operating and standby power consumption)

  • Applicable to: All 50 states

2. California CEC Certification

  • Regulatory nature: State mandatory (standards are often stricter than DOE)

  • Core requirements: Stricter energy efficiency metrics and requirements for specified products

  • Applicable to: State of California


II. Our U.S. energy efficiency service portfolio

1. Federal certification

  • DOE energy efficiency testing and listing

  • FTC energy label
    Meet federal energy efficiency requirements for the entire U.S. market.

2. State certification

  • California CEC certification

  • Compliance with other state‑specific requirements
    Meet energy efficiency requirements in California and other specific states.

3. Ongoing compliance

  • Energy database maintenance

  • Regulatory update monitoring

  • Certification renewal services
    Ensure your products remain compliant with energy efficiency requirements across the United States.

Shenzhen CTNT Zhongwei Inspection (CTNT) – providing precise energy efficiency compliance services tailored to the U.S. market characteristics.


III. Core U.S. energy efficiency regulatory framework

Our services strictly follow the full range of U.S. energy efficiency regulations:

1. Federal regulations

  • DOE regulations (10 CFR Parts 430, 431)

  • FTC energy labeling rules

2. California regulations

  • CEC energy efficiency standards (Title 20, California Code of Regulations)

3. Other state requirements

  • Special energy efficiency requirements in New York, Massachusetts, etc.


IV. Our service process

(1) Market analysis – Determine the product‘s sales regions and applicable energy efficiency regulations.

(2) Testing planning – Develop the most cost‑effective test plan to maximise use of test data.

(3) Certification execution – Simultaneously advance DOE, CEC and other certification processes.

(4) Database listing – Complete product registration and listing in all required systems.

(5) Ongoing maintenance – Provide annual maintenance and regulatory update services.


V. Why choose our U.S. energy efficiency service?

1. Multi‑level regulatory expertise – We understand both federal and California energy requirements and can design the optimal compliance path for you.

2. Optimised testing resources – Through scientific test planning, we achieve “one test, multiple certification use”, significantly lowering costs.

3. Fast response mechanism – We are familiar with the operating procedures of all certification systems, ensuring fast project progress.

4. Cost control advantage – Through rational solution design, we avoid duplicate testing and redundant certification.

5. Proactive alerts – We continuously track U.S. energy efficiency policy trends and provide forward‑looking compliance advice.

Shenzhen Zhongwei Inspection – Energy Efficiency Compliance Center – providing one‑stop testing and certification solutions for your energy‑efficient product market access to the United States.


VI. Accreditations and frequently asked questions

1. Accreditations
Our laboratory holds CMA, CNAS and IAS accreditations.

2. Frequently Asked Questions

Q: Can DOE certification and CEC certification be done simultaneously?
A: Yes. Through an optimised test plan, we share test data and carry out both certification processes in parallel.

Q: If a product is sold only in California, is DOE certification still required?
A: Yes. DOE is a federal mandatory requirement. Products must meet DOE requirements before they can be sold in any U.S. state.

Q: How long is U.S. energy efficiency certification valid?
A: DOE and CEC certifications remain valid as long as there is no product design change or regulatory update. When such changes occur, re‑certification is required.

Q: What are the consequences of failing energy efficiency certification?
A: Products cannot be sold in the affected markets. Products already sold may be required to be removed from the market and face fines or other penalties.


VII. Schedule your test

The U.S. energy efficiency regulatory system is complex, with federal and state requirements existing in parallel.

Choose us for professional energy efficiency compliance solutions that ensure your products successfully enter the U.S. market.

Email us now for your U.S. energy efficiency compliance solution and quote.


Core Advantages
  • Specialized Laser & Energy Efficiency Testing Labs

    Equipped with 10+ dedicated labs — including consumer/medical/industrial laser labs, beam performance, spectral, pulse, and electrical safety labs — we cover a full range of laser safety and performance parameters (wavelength, power, divergence, pulse energy, beam quality, etc.).

  • Globally Recognized Accreditations

    Holding CNAS (ISO/IEC 17025), U.S. IAS, and CMA certifications. Our testing complies with IEC 60825-1, EN 60825-1, FDA 21 CFR 1040.10, GB/T 7247.1, and major energy efficiency programs (DOE, CEC, ERP).


  • One-Stop Compliance & Market Access

    From product testing and technical document review to certification application and energy efficiency label registration (US DOE, CEC, EU ERP) — we streamline your path to global markets.

service network

We are ready to respond promptly to your needs and provide professional services.