I fully understand the value of CB Scheme certification for businesses — it is indeed a practical tool that eliminates redundant testing and reduces compliance costs. However, it is also one of the areas where companies most often make costly mistakes. This article only covers practical, implementable 2026 rules, with every point based on real-world operational standards.
What is CB Scheme Certification? A Clear Definition
The CB Scheme, officially known as the IECEE CB Scheme (Worldwide System for Conformity Testing and Certification of Electrical Equipment), is operated by IECEE, the International Electrotechnical Commission System for Conformity Testing and Certification of Electrical Equipment. It is the most widely recognized mutual recognition system for electrical product safety testing worldwide.
Its operating logic is straightforward:A manufacturer submits an application to an authorized NCB (National Certification Body) in any member country. Testing is performed by an IECEE-accredited CBTL laboratory. Upon passing, the NCB issues a CB Certificate and corresponding test report.With these two documents, when applying for national certifications in other member countries, the safety testing portion is generally exempt, with only minor national standard deviations required.
As of April 2026, the official IECEE website shows 54 member countries and approximately 80 authorized NCBs. This figure changes slightly each year; businesses should refer to real-time updates on iecee.org before application.
Important note:A CB Certificate is not a market access certificate for any country and cannot be used directly for customs clearance. Its core function is certificate conversion and mutual recognition to avoid duplicate testing. Manufacturers must still convert CB documents into destination-country certifications such as CE, UL, CCC, etc., for legal sales.
The most common error in 2026 CB certification is using outdated standard editions. Below are three critical standard updates you must know for export products.
1. IEC 62368-1: 4th Edition (2023) Fully Replaces 3rd Edition
This standard applies to audio/video, IT, and communication equipment — the primary safety standard for these products.
·Published: IEC 62368-1:2023 (4th ed.) in May 2023
·European version: EN IEC 62368-1:2024 published in April 2024
·Global withdrawal of 3rd edition (IEC 62368-1:2018): 31 July 2024
·EU harmonized standard transition extended to 7 December 2025
In 2026, only the 4th edition (2023) is accepted for new CB applications and CB-based national certifications. Old reports are no longer valid.
2. IEC 61347-1: 2024 New Edition Implemented
This is the safety standard for lighting control devices.
·IEC 61347-1:2024 (4th ed.) published 14 June 2024, replacing the 2015 edition
·Main changes: DC voltage limit increased from 1000V to 1500V; updates to general safety and structural requirements
Starting 2026, lighting control products applying for CB certification must be tested to the new edition.
3. IEC 60335 Household Appliance Series
Not updated as a complete set, but implemented by individual standards.
·Base standard: IEC 60335-1:2020 + AMD1:2025 (effective 2025)
·Product-specific parts (‑2‑24, ‑2‑29, ‑2‑120, etc.) have different revision timelines
·Manufacturers must follow the specific part applicable to their product
II. CB Certificate Validity & Modification Rules
The CB Certificate has no fixed statutory validity period.Theoretically, it remains valid as long as the underlying IEC standard is not withdrawn and the product is unchanged. However, some NCBs set their own validity periods, commonly 5 years. Always confirm with the issuing body, not just the printed date.
Practical Certificate Modifications (2026 Update)
Industry terms “Type M changes” and “Type A changes” correspond to IECEE’s official Modification and Amendment.
·Type M (Safety-related changes): Circuit, structure, critical components, parameter changes. Most NCBs limit modifications to 3 times; beyond that, re-certification is required. This is not an IECEE-wide rule but depends on the NCB.
·Type A (Non-safety changes): Trademark, model, label, manufacturer info — unlimited changes.
All modifications must be filed with the original NCB. Unauthorized product changes will invalidate the CB certificate and cause rejection during conversion.
III. CB Certification Scope & Testing Boundaries
The CB Scheme only covers electrical safety testing, not EMC.Core items: insulation, withstand voltage, grounding continuity, temperature rise, flammability, electric shock protection, mechanical strength, abnormal operation protection.
EMC is generally excluded unless explicitly required in the product’s IEC standard — rare in practice. Most EU-bound products still need separate EMC testing for full CE certification.Energy efficiency, performance, reliability, and RF testing are also outside CB scope.
Special Path: Photobiological Safety & Laser Products
Effective 1 February 2025, IECEE enforces a new mandatory rule:
·Products tested to IEC 62471 (photobiological safety) and IEC 60825-1 (lasers) no longer receive traditional CB certificates
·Issued under the ACP (Aspect Certification Program) instead
Applicable products: LED lighting, UV devices, laser rangefinders, laser printers, aesthetic laser equipment.In 2026, converting to UL, PSE, KC, etc., requires an ACP certificate; old CB reports are rejected.
IV. CB-FCS: Advanced Scheme of the CB System
CB-FCS (CB Full Certification Scheme) is a voluntary advanced module.On top of standard CB testing, it adds a factory inspection to strengthen product consistency control.
Benefit: Some countries may simplify or waive factory audits for CB-FCS certified applicants.It cannot replace mandatory factory audits for CCC, CE, PSE, etc. Rules vary by national authority.
V. 2026 Step-by-Step Practical Process
1.Confirm the latest valid standard edition per IECEE product category.
2.Prepare complete English technical documents: specs, schematics, PCB layout, BOM, manual, label draft, critical component certificates.
3.Select an IECEE-authorized NCB and submit application.
4.Submit samples to an accredited CBTL for testing.
5.After NCB review, receive CB Certificate and test report.
6.Use CB documents to apply for national certifications, adding required national deviation tests.
2026 Testing Timeline Reference
·Simple products (power supplies, small appliances, basic LED lamps): 4–8 weeks
·Complex, smart, multi-module, energy storage or industrial products: 6–12 weeks
·First-time testing to new standards, failure retesting, CB-FCS: longer lead times
VI. Top 4 Common Business Mistakes in 2026
1.Using outdated CB reports for conversion: IEC 62368-1 3rd edition is withdrawn; old reports are invalid.
2.Assuming CB includes EMC: Most CB certifications do NOT cover EMC; separate testing is required for CE.
3.Modifying products without updating certificates: Unreported safety changes invalidate CB.
4.Using unqualified bodies: Only IECEE-listed NCBs issue globally recognized certificates.
The core value of the CB Scheme in 2026 remains unchanged: one test, multiple country recognition, saving time and cost.For consultation, contact BLUEASIA Testing & Certification Consultant: +86 13534225140 (Benson).
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