The validity period of an EAC Certificate (COC) (1, 3, or 5 years) significantly impacts the certification process for products exported to Kazakhstan and other EAEU member states. Here’s a detailed breakdown of the implications: 1. Certification Process Complexity Longer Validity (3–5 Years): Requires a more rigorous process, including: Comprehensive factory audits (onsite or video-based) to assess production consistency, quality control systems, and compliance with EAEU technical regulations (e.g., TR CU 010/2011 for machinery) 811. Extensive sample testing in EAEU-accredited labs (e.g., safety, EMC, performance), with additional tests like fatigue or爆破 testing for high-risk products . Annual surveillance audits (mandatory for 3/5-year certificates) to ensure ongoing compliance . Shorter Validity (1 Year): Streamlined for single-batch shipments or limited production runs. Avoids annual audits but may require reapplication for subsequent exports