"Estimation of QMS efficiency in the conditions of "KarGorMash-M" LLP in the production of scraper conveyor KS 400" corresponds to the profile of the specialty "Standardization and certification". Relevance of the chosen topic is confirmed by the fact that the QMS efficiency assessment in machine-building production is one of the key measures in the analysis of the enterprise. Maintenance of sufficient effectiveness of the QMS ensures high quality of products, which means prestige of the enterprise, competitiveness and good financial indicators, which are the main factors of successful functioning of the organization in the modern economy.