TR CU Certificate (CoC) vs TR CU Declaration (DoC) Full Guide
Both documents have equal legal validity for customs clearance & sales in all 5 EAEU countries (RU/BY/KZ/KG/AM). The technical regulation (TR CU) itself defines which one you must apply for — manufacturers cannot choose freely.
TR CU CoC sample
TR CU DoC sample
1. Core Definition
TR CU Certificate of Conformity (CoC / EAC Certificate)
Issued by an EAEU Rosaccreditation-accredited third-party certification body
For high-risk products that may cause injury, fire, explosion or public hazard
Printed on official secure anti-counterfeit paper with cert body seal & signature
Liability shared by certification body + EAEU authorized representative
TR CU Declaration of Conformity (DoC / EAC Declaration)
Self-declared by an EAEU local legal entity (importer/authorized rep); only registered in the federal unified registry
For low/medium-risk consumer goods
Printed on plain A4 paper, signed & sealed by the local applicant company
100% full legal liability borne solely by the EAEU declarant

2. Clear Comparison Table
Comparison Item    TR CU Certificate (CoC)    TR CU Declaration (DoC)
Issuing Party    Accredited third-party certification body    EAEU local authorized rep / importer (self-declare)
Mandatory Factory Audit    ✅ Required for serial production (1–5 year cert); annual surveillance audit    ❌ No factory audit at all
Lab Testing Rule    Mandatory full testing in Rosaccreditation accredited labs (Russia lab preferred in 2026)    Accept manufacturer internal test / CE/CB reports; no mandatory official lab test
Certification Schemes    Marked with suffix C: 1C,2C,3C,4C,9C    Marked with suffix D: 1D,2D,3D,4D,5D,6D
Document Format    Special security official form    Standard blank A4 sheet
Processing Cycle    4–12 weeks (test + audit + document review)    7–15 working days (only file registration)
Total Cost    High (lab test + audit + surveillance fees)    Low (only document review & registry fee)
Validity Options    1 batch (single shipment) / serial 1–5 years    1 batch / serial 1–5 years (max 5 years)
Liability Bearer    Joint: cert body + local rep    Entirely the EAEU declarant
Product Risk Level    High-risk goods    Low & medium-risk goods
Market Recognition    Higher acceptance for government tender, industrial projects    General retail & e-commerce (Ozon/Wildberries)
3. Typical Product Scope (Mandatory split by TR CU rules)
Must apply TR CU CoC (Certificate)
Explosion-proof equipment (TR CU 012/2011)
Pressure vessels & high-pressure piping (TR CU 032/2013)
Toys, children’s articles (TR CU 007/2011)
Medical devices
Lifts / elevators
Complex industrial machinery, construction machines
Vehicle components, auto spare parts
Low-voltage safety critical devices (power distribution cabinets)
Allowed TR CU DoC (Declaration)
Furniture, textiles, clothing, shoes
Hand tools, small power tools
Simple household appliances, small electronics accessories
Plastic/metal packaging
Building finishing materials, paint
Stationery, daily consumer goods
Food contact tableware
4. Mandatory Shared Rules for Both CoC & DoC
No Chinese factory as direct applicant
You must appoint an EAEU registered legal entity as Authorized Representative; for Russia clearance, Russian LLC is recommended (2026 customs restrict Kazakhstan/Belarus reps).
Unified EAC marking requirement
Square EAC logo ≥5mm height, permanent on product/packaging; QR code linked to federal registry is mandatory in Russia from 2026.
Unified official database query
CoC registry: https://pub.fsa.gov.ru/rss/certificate
DoC registry: https://pub.fsa.gov.ru/rds/declaration
Technical dossier requirement
All manuals, specs, passports must be fully translated into Russian, consistent model & brand info across all files.
5. Application Process Difference
TR CU CoC Workflow
Confirm applicable TR CU regulation
Sign notarized power of attorney with Russian authorized rep
Prepare full Russian technical dossier
Deliver samples to accredited labs for full safety testing
On-site factory audit (for serial certificate)
Cert body reviews all test & audit records
Issue official certificate + register in EAEU unified database
Mark products with EAC logo before shipment
Annual surveillance audit during validity period
TR CU DoC Workflow
Confirm TR CU & confirm DoC eligibility
Appoint Russian authorized rep
Submit Russian technical dossier + manufacturer test reports
Local rep fills & signs declaration form
Submit data to unified registry to get unique registration number
Complete EAC marking, ready for customs clearance
No annual audit required
6. Important Legal Notes
CoC can fully replace DoC for the same product, but DoC cannot replace CoC for mandatory CoC-listed goods. If your product requires CoC, customs will reject a DoC.
Batch CoC / DoC only valid for one single shipment; serial documents allow unlimited shipments within 1–5 years.
If product design, raw material or core parameters change, you must update or re-apply your TR CU document.
Without valid registered CoC/DoC, goods will be detained, confiscated or returned at EAEU border; heavy fines apply to the Russian importer.

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