Almost all governments have
very specific rules and regulations related to
the control of electromagnetic interference
(EMI). Most spell out the parameters of what
is allowed and methods of testing.
In the U.S., EMI guidelines for commercial
equipment are handled by the Federal Communications
Commission (FCC). The Code
of Federal Regulations (CFR) section 47 Parts
15, 18, and 68 contain relevant information
that all engineers should be aware of when
designing class A and B devices.
The military has its own standards, which are
significantly more stringent. These guidelines
are detailed in a wide range of military standards,
such as MIL-STD-461E, MIL-STD-464.
The International Electrotechnical Commission
(IEC), via its International Special
Committee on Radio Interference (CISPR),
also created globally accepted EMI and electromagnetic
compliance (EMC) rules.
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