GOST is the Russian word for ‘norm’, and R stands for Russia. For most products a certification is necessary if you wish to sell them in Russia, in order to acknowledge safety and quality of the products. GOST is the Russian word for ‘norm’, and R stands for Russia. can be voluntary or mandatory, depending on the type of product (Custom Product Code). If for specific types of products Technical Regulations (TRCU) have been designated the GOST R certificate needs to be replaced by an EAC certification, which is valid for the complete Custom Union (Russia, Belarus and Kazakhstan).