EMC Requirements in the US

[fifty60]

If a piece of equipment is an "unintentional radiator" or electronic emissions, does it automatically fall into 47CFR part 15? If not, is there another FCC regulation?

My confusion is what responsibility a machine manufacturer has to comply with the FCC radiated emissions standards. For the European Union, you actually have to declare that you pass the relevant EMC standard. For the US, there is no such declaration.

Who's responsibility is it in the US? How is it policed if the machine manufacturer is not declaring that they meet any EMC standard?

 

[mgookin]

That was one of the tests we had to pass for our UL listing.

NRTL's can do that for you.

 

[petersonra]

If a piece of equipment is an "unintentional radiator" or electronic emissions, does it automatically fall into 47CFR part 15? If not, is there another FCC regulation?

My confusion is what responsibility a machine manufacturer has to comply with the FCC radiated emissions standards. For the European Union, you actually have to declare that you pass the relevant EMC standard. For the US, there is no such declaration.

Who's responsibility is it in the US? How is it policed if the machine manufacturer is not declaring that they meet any EMC standard?

You just can't legally sell it.

For the most part, you have to have it tested by a qualified lab. I don't think it has to be a 3rd party lab.

I doubt any machine maker has to worry about it. IIRC, it essentially only applies to digital equipment with a clock frequency above a certain level. That makes watches, calculators, and other similar devices exempt.

Very few machine makers are creating digital circuitry. They are buying it. It is up to the manufacturer to get it tested and determine it is in line with the requirements.

 

[fifty60]

Thanks for the information, it is helpful.