This analytical study research addresses international agreements and local efforts in combating hazardous, toxic, and radioactive waste crimes. It consists of an introduction and two main sections. The introduction includes definitions of the research terms, while the first part examines international agreements aimed at addressing hazardous, toxic, and radioactive waste crimes. The second part centers on local initiatives and actions taken to combat these types of crimes . The research has yielded several results, including the effective and active role played by international organizations, particularly the United Nations, in environmental conservation and protection from pollution caused by hazardous, toxic, and radioactive waste. This is evident in their contribution to the development of international environmental protection regulations and the provision of suitable platforms for environmental conferences and the conclusion of international environmental agreements. The Kingdom of Saudi Arabia has made substantial efforts to protect the environment. The research concludes with recommendations, emphasizing the necessity of working to protect the environment from pollution through international cooperation and taking appropriate measures to protect and improve the environment. It also highlights the importance of raising environmental awareness among various segments of society as one of the most effective means to prevent these crimes and to optimally preserve the environment from hazardous, toxic, and radioactive waste .