This study aims to survey the reason for not obtaining certification by food production manufacturers in Lorestan province. In order to investigate this issue, food manufacturers and experts of Standard Institute in Lorestan province has been considered. Total food manufacturers in Lorestan province are 68 manufacturers, 12 manufacturers include incentive standard regulations and 56 manufacturers include mandatory standard regulations. From the number of manufacturers that are subject to mandatory standard regulations, 12 manufacturers have achieved this goal, and 44 manufacturers have not been able to get certification. To investigate reasons of lack of certification, factors such as poor quality raw materials, inappropriate machinery and equipment, inefficient manpower and sales rate, which are expressed in four hypotheses. The method of work was that for each hypothesis, some questions were considered for both groups, and by distributing a questionnaire between two groups, namely, food production manufacturers in 44 manufacturers and experts from standard institute of Lorestan province among 10 people i.e. In fact, a census was conducted in this research. Then, after collecting questionnaires, 41 food manufacturers responded to the questions in Lorestan province and 3 food manufacturers did not respond to the questionnaire. It also should be said that every 10 experts in standard institute have responded to the questionnaire. Results showed that all hypotheses were approved by both groups, which means that poor quality raw materials, inappropriate machinery and equipment, inefficient manpower and high sales rates have had a significant effect and play an important role on the lack of certification.
