This lecture covers the history and development of ISO 14001:2015, focusing on environmental management systems for small and medium enterprises (SMEs). It explains the differences between EMAS and ISO 14001, the principles of ISO 14001, and the importance of complying with environmental standards. The instructor discusses the ISO 14000 series of standards, the role of the ISO in setting up EMS, and the benefits of implementing ISO 14001. Additionally, the lecture delves into the requirements of ISO 14001:2015, including terms and definitions, organizational context, and the logic of the PDCA structure. It emphasizes the need for SMEs to identify environmental aspects, control risks, and improve environmental performance.