Which Army regulation pertains specifically to the use of chemical agents?

The regulation that pertains specifically to the use of chemical agents is Army Regulation 525-20. This regulation provides guidance on the Army's policies and procedures concerning chemical agent defense and addresses operational and training requirements. It outlines the Army's commitment to the protection of its personnel and the strategic employment of chemical agents in warfare, ensuring soldiers are well-prepared and knowledgeable regarding the potential use, detection, and safe handling of these materials.

In contrast, other mentioned regulations cover different aspects of Army operations. For example, Army Regulation 672-10 pertains to awards and decorations, AR 385-10 focuses on safety and health, while AR 40-5 addresses health services and related matters. Understanding the specific focus of each regulation helps ensure that personnel follow the correct protocols associated with their respective areas of responsibility.