TR CU CoC vs TR CU DoC Complete Comparison & Selection Rules
Core Legal Principle
Every single TR CU Technical Regulation clearly splits goods into two fixed lists:
Goods that must use TR CU CoC (Certificate) — high-risk, DoC is illegal and will be rejected by customs
Goods that only allow TR CU DoC (Declaration) — medium/low-risk, CoC can be applied voluntarily (for bidding), but DoC is sufficient for customs clearance
You cannot freely choose; the product category under the corresponding TR CU determines which document you need.

1. Fundamental Difference Table
Comparison Dimension    TR CU CoC (Certificate of Conformity)    TR CU DoC (Declaration of Conformity)
Issuing Body    Rosaccreditation-accredited third-party certification body    Self-signed & filed by EAEU local legal entity (importer/authorized rep)
Document Form    Anti-counterfeit security paper with hologram & official seal    Plain A4 paper; only registry number is legally valid
Factory Audit    Mandatory for serial schemes (1C/2C); annual surveillance audit during validity    No factory audit, no annual follow-up inspection
Lab Testing    Mandatory full test in Rosaccreditation accredited labs (2026 Russia requires Russian labs)    Flexible: factory internal test / CE/CB reports accepted; only scheme 3D/4D needs accredited lab tests
Legal Liability    Shared: cert body + EAEU authorized representative    100% full liability solely borne by local declarant
Processing Time    4–12 weeks (testing + audit + document review)    7–15 working days (file registration only)
Total Cost    High (lab test + audit + annual surveillance fees)    Low (only document & registry service fee)
Applicable Risk Level    High-risk products (life hazard, explosion, electric shock)    Medium / low-risk consumer & light industrial goods
Valid Schemes    1C,2C,3C,4C,9C    1D,2D,3D,4D,5D,6D
Max Validity    5 years (serial) / single batch    5 years (serial) / single batch
Tender Recognition    Preferred for government, industrial & state procurement    Accepted for retail, general wholesale; many state bids require CoC additionally
2. Mandatory TR CU CoC Product List (DoC Not Permitted)
All below goods legally require only CoC; customs will reject DoC documents:
TR CU 012/2011 Explosion-proof equipment
Ex motors, Ex lighting, Ex control cabinets, mining & oil/gas explosion-proof devices
TR CU 008/2011 All toys
Plush, electric, ride-on, shooting toys — DoC completely forbidden
TR CU 007/2011 Children’s critical articles
Baby strollers, child car seats, cribs, feeding bottles, pacifiers
TR CU 011/2011 Lifts, escalators & safety components
Passenger/freight elevators, moving walkways, elevator brakes & cables
TR CU 032/2013 High-risk pressure equipment (Class 2/3/4)
Boilers, gas cylinders, industrial pressure vessels, high-pressure piping
TR CU 010/2011 Heavy industrial machinery