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What is the FCC Mark?
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All commercial electronic devices (unintentional radio-frequency radiators) destined for sale in the United States that have clocks/oscillators that operate at a frequency of greater than 9 kHz and uses digital techniques are regulated by the Federal Communications Commission (FCC) under Rules and Regulations, Title 47, Part 15 Subpart B. This includes almost every product that employs a microprocessor. An unintentional radiator, if not controlled through proper design of grounding and shielding, may result in high levels of energy being radiated or conducted from the equipment causing unwanted effects upon another device.

The FCC has broken down Part 15 into two categories, Class A and Class B.

Class A Device: A device marketed for use in an industrial or business environment and not intended for use in the home or a residential area.

Class B Device: A device marketed for use in the home or a residential area. Examples of such devices include, but not limited to, personal computers, calculators, printers, modems, many electronic games, and similar devices that are marketed for use by the general public.

It is illegal to sell or advertise products regulated under Part 15, Subpart B until their radiated and conducted emissions have been measured and found to be in compliance. The radiated and conducted EMI test procedures are defined in ANSI Standard C63.4. FCC Rules and Regulations, Part 15, only regulates radio frequency emissions. Currently there are no FCC regulations regulating product immunity to electromagnetic fields.

Class B personal computers and peripherals are authorized by the FCC Declaration of Conformity (DOC) procedure.

The manufacturer must:
  • Get the product tested at an accredited EMC testing laboratory. G&M Compliance Laboratory can assist your needs in accomplishing that goal.
  • Mark the product with the FCC Logo as displayed in Part 15, Subpart B, Section 15-19, Labeling Requirements. The label must be permanently affixed to the product. Prepare a technical file.
  • Prepare and sign a Declaration of Conformity.

More information: FCC.gov

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