The IEC 61000-6-3 is an EMC standard by the International Electrotechnical Commission on Generic Emission standard for residential, commercial, and light-industrial environments. This generic EMC emission standard applies to electronic and electrical equipment operating on frequency range from 0 Hz to 400 GHz. The standard also applies to the machinery used in a public mains system connected to a low-voltage public mains network. 

 This part of IEC 61000 also applies to electrical and electronic equipment intended for use at other locations that do not fall within the scope of IEC 61000-6-8 or IEC 61000-6-4. This standard also applies to equipment working on batteries intended to work in residential, commercial, and light-industrial locations, both indoor and outdoor. The locations of equipment covered in this standard are as follows:

• Residential properties, for example, houses, apartments; 
• Retail outlets, for example, shops, supermarkets; 
• Business premises, for example, offices, banks;
• Areas of public entertainment, for example, cinemas, public bars, and dance halls;
• Outdoor locations, for example, petrol stations, car parks, amusement, and sports centers;
• Light-industrial locations, for example, workshops, laboratories, and service centers.

The object of this standard is to define the emission test requirements for apparatus defined in the scope concerning continuous and transient, conducted, and radiated disturbances. The emission requirements have been selected to ensure that disturbances generated by apparatus operating normally in residential, commercial, and light-industrial locations do not exceed a level that could prevent other apparatus from operating as intended. Not all disturbance phenomena have been included for testing purposes in this standard but only those considered relevant for the equipment covered by this standard. These requirements represent essential electromagnetic compatibility emission requirements. The emission limits to be complied with are given by the following standards:

• IEC 61000-3-2:2018 - Limits for harmonic current emissions
• IEC 61000-3-3:2013 -  Limitation of voltage changes (Equipment with rated current ≤ 16 A per phase)
• IEC 61000-3-11:2017 - Limitation of voltage changes (Equipment with rated current ≤ 75 A)
• IEC 61000-3-12:2011 - Limits for harmonic currents
• IEC 61000-4-20:2010 - Testing and measurement techniques – Emission and immunity testing in transverse electromagnetic (TEM) waveguide
• CISPR 16 - Specification for radio disturbance and immunity measuring apparatus
• CISPR 32 - Emission requirements - the compatibility of multimedia equipment

The first edition is not recorded online. The second edition of this standard was released in 2006 and its amendment in 2010. The third and valid edition was released in 2020. This edition specifies an alternative method for measuring conducted emissions on DC ports. It also redefined the scope of the standard by stating the limits and requirements applicable only to equipment intended to be used in residential locations. This edition has also made the limits for DC power ports more stringent.  

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