Editing Electromagnetic compatibility (section)

== Legislation ==
{{unreferenced section|date=June 2023}}

Several organizations, both national and international, work to promote international co-operation on standardization ([[harmonization (standards)|harmonization]]), including publishing various EMC standards. Where possible, a standard developed by one organization may be adopted with little or no change by others. This helps for example to harmonize national standards across Europe.

International standards organizations include:

* [[International Electrotechnical Commission]] (IEC), which has several committees working full-time on EMC issues. These are:
** Technical Committee 77 (TC77), working on electromagnetic compatibility between equipment including networks.
** [[Comité International Spécial des Perturbations Radioélectriques]] (CISPR), or International Special Committee on Radio Interference.
** The Advisory Committee on Electromagnetic Compatibility (ACEC) co-ordinates the IEC's work on EMC between these committees.
* [[International Organization for Standardization]] (ISO), which publishes standards for the automotive industry.

Among the main national organizations are:

* Europe:
** [[European Committee for Standardization|Comité Européen de Normalisation]] (CEN) or European Committee for Standardization).
** [[CENELEC|Comité Européen de Normalisation Electrotechniques]] (CENELEC) or European Committee for Electrotechnical Standardisation.
** [[ETSI|European Telecommunications Standards Institute]] (ETSI).
* United States:
** The [[Federal Communications Commission]] (FCC).
** The [[Society of Automotive Engineers]] (SAE).
**  The [[RTCA, Incorporated|Radio Technical Commission for Aeronautics]] (RTCA); see [[DO-160]]
* Britain: The [[British Standards|British Standards Institution]] (BSI).
* Germany: The [[Verband der Elektrotechnik, Elektronik und Informationstechnik]] (VDE) or Association for Electrical, Electronic and Information Technologies.

Compliance with national or international standards is usually laid down by laws passed by individual nations. Different nations can require compliance with different standards.

In [[European law]], EU directive 2014/30/EU (previously 2004/108/EC) on EMC defines the rules for the placing on the market/putting into service of electric/electronic equipment within the [[European Union]]. The Directive applies to a vast range of equipment including electrical and electronic appliances, systems and installations. Manufacturers of [[electronic devices|electric and electronic devices]] are advised to run EMC tests in order to comply with compulsory [[CE mark|CE-labeling]]. More are given in the [[list of EMC directives]]. Compliance with the applicable harmonised standards whose reference is listed in the OJEU under the EMC Directive gives presumption of conformity with the corresponding essential requirements of the EMC Directive.

In 2019, the USA adopted a program for the protection of critical infrastructure against an electromagnetic pulse, whether caused by a [[geomagnetic storm]] or a high-altitude nuclear weapon.<ref>{{USGovernment|url=https://trumpwhitehouse.archives.gov/presidential-actions/executive-order-coordinating-national-resilience-electromagnetic-pulses/|title=Executive Order on Coordinating National Resilience to Electromagnetic Pulses}}</ref>