Based on the search results, the choice between EAC Certificate (CoC) and EAC Declaration (DoC) under TR CU 032/2013 (also known as TR TS 032/2013) depends on risk classification, product parameters, and applicant eligibility. Here's a structured comparison: ⚖️ 1. Core Selection Criteria Factor EAC Certificate (CoC) EAC Declaration (DoC) Risk Category Mandatory for Class 3-4 high-risk equipment: - Pressure vessels >0.001 m³ & >0.05 MPa - Gas pipelines >DN 25 mm - Boilers (>110°C or >0.05 MPa steam) For Class 1-2 lower-risk equipment: - Liquid pipelines ≤DN 25 mm - Valves for non-hazardous media (DN ≤32 mm) Applicant Requirements Open to foreign manufacturers; issued by EAEU-accredited bodies Only EAEU-registered entities (local importer/distributor) Validity Period Up to 5 years (with annual audits for batch production) Up to 5 years (no audits, tied to batches/contracts)