The certified products could be marked with the GOST Sign.
Two slightly different GOST-R Signs might be placed on the product:
|GOST Sign for the product with Declaration of Conformity||
GOST Sign for the obligatory certified products
The GOST Sign with 2 letters + 2 digits is used for marking the products which are subject to the Obligatory GOST-R Certification. The code under the sign is the laboratory code where the certificate for that product was issued.
The GOST Sign without digits is for the products which have Declaration of Conformity. It's prohibited to place the GOST Sign without digits on the product, for which the Obligatory Certificate of Conformity was issued.