If you're a North American buyer sourcing electrical or electronic products from China, ETL certification is one of the most recognized safety marks you'll encounter. Whether you're importing consumer

electronics for retail distribution, industrial machinery for factory installation, or lighting products for commercial projects, understanding the ETL certification process helps you plan timelines, budgets, and compliance strategies with confidence.

This guide walks you through every step of the ETL certification process — from initial application to final listing — with specific insights for products manufactured in China.

What Is ETL Certification?

ETL certification is a product safety certification mark issued by Intertek, a Nationally Recognized Testing Laboratory (NRTL) accredited by OSHA in the United States. The ETL Listed Mark demonstrates that a product has been independently tested and meets applicable North American safety standards.

Key facts about ETL certification:

• Issued by: Intertek Testing Services (an OSHA-accredited NRTL)
• Recognized in: United States and Canada
• Standards tested against: ANSI, UL, CSA, and other applicable safety standards
• Products covered: Electrical appliances, consumer electronics, industrial equipment, lighting, HVAC systems, power tools, medical devices, and more
• Legal equivalence: The ETL mark is legally equivalent to the UL mark — both are NRTL certifications recognized by OSHA

Major North American retailers — including Walmart, Home Depot, Lowe's, and Amazon — require ETL or UL certification before they will stock electrical products on their shelves or platforms. Without it, your products cannot legally be sold in most US states and Canadian provinces.

ETL Certification Process: Step-by-Step

The ETL certification process consists of five main stages. Here's what happens at each step, with specific details relevant to products manufactured in China.

1 Application and Project Assessment

The process begins when you submit an application to an Intertek-authorized testing laboratory or certification partner. At this stage, you'll need to provide:

• Product specifications: Model numbers, product descriptions, intended use, and target market (US only, Canada only, or both)
• Technical documentation: Circuit diagrams, schematics, PCB layouts, and bill of materials (BOM)
• User manual: Operating instructions, safety warnings, and installation guidelines
• Component certifications: Safety certifications for critical components (such as power supplies, switches, and connectors)
• Manufacturing information: Factory location, production capacity, and existing quality control procedures

The laboratory reviews your documentation and identifies the applicable safety standards for your product category. For example, a household appliance would be tested against UL 60335-1, while an LED luminaire would be tested against UL 8750. This assessment determines the testing scope, estimated timeline, and cost breakdown.

2 Product Testing

Once the application is approved, product samples are submitted to the testing laboratory for comprehensive evaluation. The testing phase is the most technically demanding part of the process.

For products manufactured in China: Testing is conducted at Intertek-authorized laboratories within China. This means samples don't need to be shipped overseas, significantly reducing both testing timeline and logistics costs. The manufacturer can deliver samples directly to the lab, and engineering teams can respond quickly to any test failure rework requirements.

3 Factory Inspection (Initial Production Assessment)

（In the case of small quantities of customised machinery and equipment, it may be more appropriate to undergo ETL LPC certification, as this does not involve factory inspections or subsequent certificate maintenance.）

After successful product testing, Intertek conducts an initial factory inspection at the manufacturing facility. This inspection is mandatory and verifies that the factory can consistently produce products meeting the certified safety standards.

For Chinese manufacturers, this inspection is conducted at their facility in China — no overseas travel is required. Most inspections take 1–2 days depending on factory size and product complexity.

4 Certification Issuance and ETL Listing

Once testing and factory inspection are successfully completed, Intertek issues the ETL certification and grants authorization to use the ETL Listed Mark. 

5 Follow-Up Service (Ongoing Compliance)

ETL certification is not a one-time event — it requires ongoing compliance through Intertek's Follow-Up Service program. Inspectors visit the factory periodically — typically 2 to 4 times per year.

Need ETL Certification for Your Products from China?

ATJC helps North American buyers navigate the entire ETL certification process — from document preparation to factory inspection. Based in Shenzhen, China, we work directly with your manufacturer to ensure smooth, efficient certification.Get a Free Certification Assessment