The GOST R system makes provision for a type of certificate applicable for products and cervices that are not subject to mandatory certification under the Russian law.Such a certification is called voluntary.A voluntary certificate is issued at the request of a product manufacturer or supplier.

Certificate of Conformity，or Quality Certificate，proves that a product conforms to required quality norms;Certificate of Conformity can be obtained，through established certification schemes，for stock-produced articles and job lots.Certificate of Conformity is issued by an accredited certification center and is valid throughout Russian Federation，Kazakhstan and Belorus，regardless of recipient’s location.This document can be issued on the basis of a supply contract.

Even when there are no mandatory requirements for quality certification，many companies undertake voluntary certification.Although voluntary certification is effectuated at applicant’s request，the availability of the voluntary certificate is a weighty argument in favour of quality–it is for this very reason that companies undertake voluntary certification of their products.In practical terms，consumers demand a documented proof of quality.It is totally irrelevant，whether such document is voluntary or mandatory，since any quality certificate is a proof of product safety，which is the most important issue for the consumer.