Modifying host enclosures or antenna gains triggers mandatory KC partial re-testing under South Korean RRA rules to avoid border holds and grant revocation.
RRA compliance demands exact technical track matching, accredited RF and EMC testing, local representative holdings, and correct KC mark layout.
Foreign radio manufacturers avoid South Korean customs lockouts by filing RRA conformity applications under their own corporate name rather than a distributor.
Direct foreign applicant registration paired with escrowed transfer forms prevents Korean distributor regulatory lockouts and eliminates supply chain holds.
KC radio registration demands local testing, a domestic agent, accurate schematics, and strict adherence to National Radio Research Agency standards.
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