In order to fulfill the commitment to comply with the requirements of laws and regulations, enterprises or organizations establish, implement and maintain one or more procedures to regularly evaluate the compliance with applicable laws and regulations. With the continuous improvement of human productivity and the deepening of social understanding, environmental problems have attracted more and more attention, which has promoted the in-depth development of governance according to law in various countries. 1996, international standardization enterprises issued ISO 14000 series of environmental management standards, which were revised to form the current ISO14001:2004+0: 2004 environmental management system requirements and use guidelines. China adopted the standard GB/T2400 1-2004 environmental management system requirements.