In a context of social responsibility, production, as well as the exploitation of goods, should be carried out with a view to minimising environmental, economic and social impacts. With this in mind, GESTOCI has embarked on an environmental approach in order to develop an environmental management system. The objective of this study is to highlight non-conformities in solid waste management based on the ISO 14001 version 2015 standard. The backbone of the methodological approach that enabled this study to be carried out is made up of documentary research and diagnostic interviews based on the requirements of the ISO 14001 version 2015 standard. The rate of non-compliance in chapter 4 "Context", chapter 5 "Leadership", chapter 6 "Planning", chapter 7 "Support", chapter 8 "Carrying out operational activities", chapter 9 "Performance assessment" and chapter 10 "Improvement" is 59%, 76%, 81%, 89%, 84%, 93% and 90% respectively. These rates, which are very high, represent what could be described as bad practices in solid waste management at GESTOCI.