EMC (Electromagnetic Compatibility) is a test that ensures electromagnetic compatibility by managing the amount of electromagnetic noise emitted by electronic devices below the level specified in the standard to prevent interference with other electronic devices (EMI, electromagnetic interference) and by managing the performance of electronic devices to maintain performance even in strong external electromagnetic noise environments (EMS, electromagnetic immunity).

EMC is a basic performance requirement for all electronic devices, and it not only protects the radio environment, but is also a mandatory requirement in major overseas markets.