When it comes to global benchmarks in the telecommunications industry, South Korea stands out as the leading nation. The country has consistently adopted 5G, prioritized network speeds, and fostered technological innovation.
It’s no surprise, then, that South Korea has become a target market for manufacturers, importers, and distributors looking to market their telecommunications products there. However, before entering the market, it’s important to note that every such product requires RF certification in South Korea.
This certification is known as the KC certification. The certificate serves as a mark of safety and compliance applicable to all telecommunications products on the market. By thoroughly understanding the certification process, marketing telecommunications products in this country becomes much easier.
What is RF Certification in South Korea?
RF certification in South Korea differs from most countries, where it is issued directly by a government agency. Korean Certification (KC) is issued by accredited Certification Bodies (CBs).
CBs responsible for certification matters are not limited to government-affiliated entities; private CBs are also eligible. All CBs and certification-related policies are regulated by the Korea Agency for Technology and Standards (KATS).
KC certification covers not only telecommunications devices but also many product categories, such as electronics, household appliances, and toys. Specifically, telecommunications devices falling under the broadcasting and communications product category are certified by the National Radio Research Agency (RRA).
Every telecommunications device must be proven safe for use. This relates to the risks associated with its use and potential interference with the operation of other devices when used simultaneously. Therefore, the safety of these telecommunications products must be demonstrated through KC certification.
Product Requiring Certification
In South Korea, products that are required to have KC certification are categorized by product type and the technology used. There are three certification schemes for broadcasting and communications equipment: Certification of Conformity (CoC), Compatibility Registration, and Interim Conformity (IoC).
Conformity of Certification (CoC)
Conformity of Certification (CoC) is the most commonly used scheme for KC certification applications. This scheme applies to products that are highly likely to cause or be affected by interference, such as cordless phones, modems, and radar systems.
Registration of Compatibility
Registration of Compatibility is a scheme applicable to products that are not required to comply with the CoC. Examples of such products include set-top boxes, computing devices, and measuring instruments. When applying this scheme, a confirmation letter must be submitted online to the RRA to verify the product’s compliance.
Interim Conformity (IoC)
Interim Conformity (IoC) is a scheme applicable to newly developed products or new technologies for which technical standards do not yet exist in South Korea. Instead, product conformity assessments will use international standards from other countries.
Who Can Apply for Certification?
South Korea differs slightly from most countries in its certification applicant pool. Foreign manufacturers are permitted to apply for and hold a KC certificate directly.
It should be noted, however, that foreign manufacturers must still partner with a local importer registered in South Korea. The local importer may either hold the certificate directly or be designated solely as a local representative.
This relates to the smoothness of the import process, as telecommunications products can be imported into South Korea only by local importers.
KC Certification Process
The convenience for certification applicants does not make the process easy. RF certification in South Korea requires on-site testing. There is no option for paperwork or document evaluation.
There are two mandatory tests in this process: the Radio Frequency (RF) test and the Electromagnetic Compatibility (EMC) test. Additionally, a Specific Absorption Rate (SAR) test is required for devices that are worn or used close to the body.
Local testing requires samples. The number and type of samples will depend on the required tests. At least three samples are needed for each of the three types of testing.
- RF testing requires conductive samples
- EMC testing requires standard samples
- SAR testing requires radiation samples
Document requirements
Samples are not the only requirement that must be prepared for the KC certification process. There are also documents that each applicant must submit.
South Korea divides the process into two stages: pre-local testing and post-local testing.
The documents required for local testing include:
- Antenna specifications
- Circuit diagrams
- Photos of component locations
- User manual in Korean
- Application form
- Software testing guide
Once testing is complete, the test results must be verified and added to the evaluation documents:
- Test reports
- Display images
- Component layout diagrams
- Statement of compliance
Submit document and evaluation
All required documents, both before and after local testing, must be submitted in full to the Certification Body (CB). The CB will then designate a laboratory to conduct the testing.
Document evaluation will begin once the test results have been issued. If all requirements are met, the KC certificate will be issued upon approval. However, if the product fails the testing or there are errors in the documentation, retesting will be required, or the necessary documents must be completed.
Lead Time and Certificate Validity
In terms of lead time, South Korea generally has the same timeline as other countries that undergo local testing. The entire process—from testing and document evaluation to the issuance of the certificate—takes about eight weeks.
Regarding certificate validity, South Korea falls into the category of countries that do not address this issue. This is because KC certificates never expire.
KC certificates are valid for life. You do not need to renew them or pay annual fees—provided there are no significant changes to the product.
Label Requirements
Just because a certificate has been issued does not mean the device can be marketed in South Korea immediately. All KC-certified products must display the KC Mark before being sold.
Five components make up the KC Mark:
- KC logo
- Equipment identification code
- Certification scheme code
- Applicant identification code
- Product identification code
The mark must be placed on the product, packaging, or user manual. The KC mark must be at least 5 mm in size. However, if the product is too small, the size may be adjusted.