Preparing complete documents is the top priority when launching a KCC project. Although the checklist contains many items, it can be sorted into three groups by product type: full documents for finished CC products, simplified documents for finished CR products, exclusive materials for standalone RF modules.
1.Definition Clarification: "KCC certification" in this article exclusively refers to KC RF certification administered by RRA for wireless transmission compliance. KC Safety Certification (covering electrical safety and KN18031 cybersecurity testing) managed by KATS operates as an entirely independent document system. Two sets of documents must be prepared and submitted separately with no combined filing option. Connected smart home appliances and wireless IT devices often face 1.5-month delays due to missed safety certification application halfway through RF project execution; separate planning for two systems from project initiation is mandatory.
2.Finished Product vs. Standalone RF Module Document DifferencesModule manufacturers copying full finished product checklist will prepare redundant documents while omitting exclusive module-specific materials, resulting in audit suspension.
1. Full Document List & Sample Quantity for Finished CC Products
CC Conformity Certification covers smartphones, cellular routers, 5G equipment and domestic wireless routers.Key Rule: All domestic wireless routers (2.4G single-band / dual-band / Wi-Fi 6E three-band) are mandatorily classified as high-risk CC products with no CR eligibility. Enterprises misclassifying routers as CR will submit only 2 test samples without SAR evaluation and formal RF parameter forms, leading to full document rejection and complete project restart at RRA preliminary review.
Complete CC Document Checklist
Product specification, circuit schematic, PCB layout drawing, BOM list, antenna specification, Korean user manual, SAR test report, RF parameter datasheet, enterprise business license, notarized power of attorney for Korean local agent, nameplate artwork.
Sample Quantity for CC Route
4 official test samples required for all 4G smartphones, 5G smartphones, cellular routers and domestic Wi-Fi routers. The 4 samples support full RF testing and SAR evaluation in different lab stations without separate SAR sample provision.
2. Simplified But Indispensable Documents for Finished CR Products
CR Conformity Registration applies to Bluetooth earphones, Bluetooth mouse & keyboard, regular Bluetooth speakers and low-power Wi-Fi peripheral modules with 2 standard test samples.CR technical documents omit SAR evaluation reports and formal RF parameter form upload for e-Cert submission, but these materials remain necessary for lab test planning.High-Risk Pitfall of RF Parameter Datasheets: Although CR does not require uploading parameter forms to e-Cert, lab engineers must obtain complete frequency band, modulation mode and maximum power parameters to develop accurate test schemes.
3. Exclusive Document Checklist for Standalone RF Modules
RF module application materials differ greatly from finished goods. Copying finished product checklist leads to redundant documents and missing core module materials.
-Documents Unnecessary for Modules: SAR evaluation report, full Korean consumer user manual (modules have no SAR test scenarios and do not require complete retail user guides).
-Mandatory Exclusive Module MaterialsModule specification must detail full RF interface definition including antenna connector type, RF port impedance, power supply voltage and enable control logic for RRA audit to judge compatibility with downstream finished products without hardware modification. Clear physical module photos showing RF shielding structure and antenna connector position; modules without integrated shielding require supplementary statements on downstream finished product shielding design standards.
-Korean Document Simplification Rules for Modules
·Modules only supplied to downstream manufacturers for internal integration (no separate retail on Korean market): Korean documents simplified to 1-page technical abstract translation plus safety warning labels.
·Modules sold independently on Korean e-commerce platforms (Gmarket, Coupang): Full Korean safety user manual mandatory with safety prompts, agent information and compliance statements; simplified B2B technical summaries are invalid for customs clearance.
-Drawing Upload MandateFinished product and standalone module drawings must be stored in two independent folders on the e-Cert platform; mixed archives trigger automatic system rejection.
4. Itemized Breakdown of Product Technical Documents
Product Specification (Core Technical File)
Covers wireless function descriptions, supported radio standards, operating frequency ranges, maximum transmission power, antenna type & gain. RRA auditors cross-verify consistency between specifications and test RF parameters as the primary review step. Vague frequency range descriptions or missing channel bandwidth specifications result in direct application rejection.
Special Mandatory Clauses for 6GHz Wi-Fi 6E & 5G n78 Band Devices
Products supporting 6GHz or n78 bands must list separate frequency ranges and power limits in specifications and RF parameter forms. Combining 6GHz data with 5GHz bands or merging n78 & n41 parameters violates audit standards and triggers supplementary correction requests. Labs rely on separated band descriptions to design complete test suites.
Circuit Schematic & PCB Layout Drawing (Second Core Document Group)
-Schematic: Verifies RF chip model, RF link design and power supply architecture for RRA cross-check of test report rationality.
-PCB Layout: Displays RF traces, antenna matching network and grounding shielding design.High rejection rate for these two files on e-Cert; detailed avoidance rules covered in the subsequent drawing upload specification section.
BOM List
Records model & specification of RF chain components including RF chips, power amplifiers, filters and antenna matching devices. Serves as primary reference for hardware change judgment post-certification; RF chip and antenna matching component specifications are the core audit benchmarks. Modifications to non-RF components generally do not impact certificate validity.
Antenna Specification
Defines antenna type, gain range and operating frequency band. Separate document format for external vs. built-in antennas; external antennas require supplementary connector type specifications and must be shipped with matching physical antennas instead of lab test fixtures.
Korean User Manual
Mandatory clear labeling of product model, manufacturer information and Korean local agent details; module exemption rules covered above.
5. Test Sample Quantity, Configuration & Spare Sample Rules for Industrial Equipment
Base sample quantity recap: 4 samples for finished CC products, 2 samples for CR products. Supplementary refined rules for equipment & module submission:
Spare Sample Standard for High-Power Industrial Equipment
Industrial base stations, high-power CPE terminals with temperature rise limit, short-circuit protection or battery discharge destructive testing carry irreversible hardware damage risks, requiring 1–2 extra spare samples on top of standard quantity.Ordinary industrial wireless data transmission modules & medium-power industrial routers without destructive test items follow standard CC sample quantity with no extra spares required. Over-preparing spare samples for all categories increases unnecessary production & shipping costs.
Mandatory Sample Configuration
Samples must be flashed with Korean regional frequency band firmware before delivery; all external antennas must be shipped together. All test samples must match mass-production hardware configurations; certificates issued are bound to the submitted hardware version.
6. Notarized Local Agent Authorization & Cost of Agent Replacement
Local agent power of attorney is the most common bottleneck blocking document review.
·Formal power of attorney signed with Korean local agent defining authorization scope, product coverage and valid term. Consulate notarization is mandatory; simple PDF copies with enterprise stamps are unrecognized by e-Cert. Notarization takes 1–2 weeks and can proceed in parallel with lab testing to align completion timelines.
·Agent Qualification Standard: Legal registered commercial entity; individual sole traders are ineligible as RF certification local representatives with clean RRA system records.
·Agent Replacement Filing CostSwitching Korean importer or local agent requires formal RRA change filing with new agent notarization & system operations. Each agent modification filing fee is approximately 70,000 KRW (~RMB 350). Low single-fee amount accumulates for enterprises holding dozens of certificates simultaneously; budget reserve required for multi-SKU brands. Delays or non-cooperation from old agents may lead to original certificate expiration.
7. Nameplate & Label Design Rules (Physical Inspection Priority)
Complete nameplate artwork design per RRA standards before testing to avoid post-test label revision delays delaying shipment.
·Abolished Format Notice: MSIP-REM serial number system & standalone KCC graphic logo fully invalid since 2020. Uniform KC logo with R-C prefixed serial number assigned by RRA upon certification issuance.
·Mandatory Nameplate Content: KC mark + unique certification serial number, product model, manufacturer & Korean local agent information, text printed in Korean or bilingual Korean-English. KC RF logo must also be printed on outer packaging for cross-check during e-commerce platform random inspections.
·Clarification: RRA only verifies physical nameplates & packaging labels; KC serial number display on device system settings page is not legally required with no mandatory firmware development or OTA push obligations.
8. Drawing Upload Specifications & Top Rejection Causes on e-Cert
Mandatory rigid rules for drawing submission with frequent audit rejection issues consolidated below:
·Single PDF file size cap: 20MB maximum; split oversized archives instead of compressing image quality. Drawings must separate RF layer, antenna layer and power supply layer into independent layers; merging multi-layer information on one page triggers automatic system rejection even with separate folders.
·Prohibited Drawing Obstruction: RF chip silkscreen markings and antenna feed point labels cannot be covered, blocking auditor verification of consistency with antenna specifications. External antenna products must attach complete antenna connector structural drawings with clear model & interface marking; missing drawings classified as incomplete materials.
·Archive Separation Mandate: Finished product and RF module drawings stored in two independent PDF folders; mixed archives rejected automatically.
·Standardized Korean Technical TranslationNon-standard RF terminology translations or machine translation result in review rejection requiring full re-translation with at least 1-week delay. Industry-standard Korean RF glossary must be adopted for all technical documents.
9. Pre-Submission Self-Checklist for e-Cert Common Rejection Categories
Full itemized pre-audit inspection to eliminate most rejection risks:
·Authorization & Notarization: Power of attorney without Korean consulate notarization (only enterprise stamped scan), disqualified agent (unregistered individual sole trader) leading to invalid authorization.
·Product Classification Mismatch (Top Rejection Cause): Incorrect route selection (e.g. domestic router submitted as CR product, smartphones misclassified as CR to skip SAR testing) rejected immediately upon submission. Confirm classification with Korean labs before formal filing.
·Non-Compliant Drawing Format: Unseparated RF/antenna/power layers on drawings, obscured RF chip/antenna feed markings, missing external antenna connector structural drawings.
·Translation & Label Errors: Non-standard Korean RF terminology translation, obsolete MSIP-REM serial numbers / discontinued standalone KCC graphics on nameplates, English-only labels without Korean text.
·File Format Violations: Mixed finished product & module drawing folders, single PDF exceeding 20MB without splitting, outdated official application form templates blocked by system validation.
10. Derivative SKU Simplification Mechanism & Bulk Filing Discounts
Enterprises with multiple SKUs in one product series can adopt derivative filing to reduce redundant work under strict preconditions: RF hardware must remain fully unchanged.
Eligible for Derivative Filing (No Full Retest Required)
Only exterior color adjustment, storage capacity modification, packaging language replacement. Submit derivative comparison form plus minor administrative fees while reusing main model test reports.
Mandatory Independent Full Certification (Derivative Filing Disallowed)
Four hardware changes invalidate original certificate coverage requiring complete new application: RF chip model replacement, antenna structure/material modification, added/deleted operating frequency bands, antenna matching network adjustment.
Bulk Filing Administrative Fee Discount
Enterprises submitting ≥5 derivative SKUs under one main certificate simultaneously qualify for RRA bulk discount on amendment filing fees. Consolidate all variant applications during project planning instead of separate intermittent submissions to avoid accumulated extra administrative charges.
11. Post-Certificate Compliance Rules: Electronic Certificates for Shipment, Physical Archives Retained for 5-Year Inspections
Electronic KC RF certificates issued instantly via e-Cert upon approval are directly valid for Korean customs clearance and e-commerce listing with no requirement to wait for physical mail certificates to arrange mass production schedules. Physical certificates are only for long-term archiving and do not delay shipment.
Mandatory 5-Year Document Retention Rule
RRA mandates storage of full certification documents for a minimum of 5 years from certificate issuance. Random inspections by RRA or Korean e-commerce platforms may retrieve original technical archives at any point within the 5-year validity window. Missing drawings or incomplete records during inspection result in product non-compliance judgment, full SKU store removal and potential brand-wide platform ban with irreversible compliance risks.Create complete electronic archive folders upon certificate issuance separating drawings, test reports, notarization documents and nameplate artwork; maintain a certificate expiry tracking ledger to initiate renewal procedures 6 months prior to expiration.
BlueAsia Compliance Consultant: +86 13534225140 (Benson)
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