Guidelines on Displaying Conformity Assessment (KC Mark) Information on Products and Packaging Released

Mandatory Requirements for Conformity Assessment Marking

In principle, conformity assessment information must be displayed on both the product itself and its packaging. This is a fundamental legal obligation stipulated under relevant regulations, including the Radio Waves Act and the Electrical Appliances and Consumer Products Safety Control Act. These requirements ensure that consumers can easily verify safety and quality compliance, while also facilitating efficient post-market surveillance by regulatory authorities.

Exceptions Due to Design and Space Constraints

Exceptions are permitted if it is realistically difficult to mark the information directly on the product or packaging due to its specific characteristics, design elements, or physical space limitations. In such instances, the legal requirement can be satisfied by clearly and legibly displaying the information in the user manual or other accompanying documentation.

A "difficult case" refers to objective constraints rather than mere convenience. Examples include products that are too small for legible marking, surface materials that are unsuitable for printing/engraving, or cases where marking would significantly compromise the aesthetic integrity of the product (e.g., small electronic components or jewelry-style wearables). It is important to remember that even if an exception for labeling is applied, the obligation to undergo conformity assessment remains mandatory, and the information must still be clearly disclosed in an accessible format.

Customs Clearance and Legal Implications

From the perspective of customs clearance and market distribution, the correct display of conformity assessment information is critical. Even when information is provided via a user manual, importers must be able to substantiate compliance upon request by Korea Customs Service. This is typically done by presenting the Certificate of Conformity and test reports alongside the manual.

Non-compliance—such as failing to obtain certification or improper labeling—can lead to severe consequences, including suspension of clearance, orders for return or destruction, administrative fines, and potentially criminal prosecution. Importers must recognize the gravity of these regulatory requirements to avoid significant operational disruptions.

Compliance Checklist for User Manual Labeling

If you opt to display conformity assessment information in the user manual instead of the product, please ensure the following:

• There must be an objective and justifiable reason why marking on the product or packaging is not feasible.
• The manual must include all legally required information without omission: the KC mark, certification/registration number, model name, manufacturer's name, and importer's name.
• All related documents, such as conformity certificates and test reports, should be kept on file and ready for immediate submission to authorities.

The most recommended approach is to display the information on the product and packaging whenever possible. Relying solely on the user manual should be treated as an exception and approached with caution. Strict adherence to these regulations is the most effective way to prevent unnecessary delays in customs and avoid legal complications.