Amazon hardware accessories require NRTL certification. Only after passing the relevant tests of the Nationally Recognized Laboratory (NRTL) can the product be legally sold in the market.
 
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Amazon hardware accessories require NRTL certification, and the United States UL Underwriters Laboratory certification-NRTL refers to the Nationally Recognized Testing Laboratory, which is the abbreviation of the English Nationally Recognized Testing Laboratory. The Occupational Safety and Health Administration (OSHA) under the U.S. Department of Labor requires Products used in the workplace must be tested and certified by a nationally recognized laboratory to ensure the personal safety of users.

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In North America, manufacturers who legally sell civilian or industrial products on the market must carry out rigorous testing in accordance with national standards. Only after passing the relevant tests of the Nationally Recognized Laboratory (NRTL), the product can be legally sold in the market.

amazon fba importing from china