I did not know this until I Googled it just now.
In the USA most electrical appliances have to be “UL Approved” (
Underwriters
Laboratories Approved). The UL uses IEC standards. The UL tests other things beyond electrical. When I sold structural insulated panels, our competitor used UL tests to certify their fire ratings. I visited a UL facility and the engineer told me that our competitor was using an inappropriate test for fire rating on their product.
UL tests other things beyond electrical appliances and wiring devices.
In any case, virtually every electrical appliance or device sold in the USA will have a UL Approved sticker applied. And UL uses IEC standards. See Google below.
Typical UL Approved label:
View attachment 381772
This from Google A.I.:
The
National Electrical Code (NEC) (NFPA 70) is a mandatory, prescriptive installation code for safety in the USA, updated every three years. International Electrotechnical Commission (IEC) standards are voluntary, international guidelines focusing on product design and performance. In the USA, NEC compliance is legal, while IEC components may be used if they meet UL standards.