Supervisors in construction settings carry a critical responsibility: recognizing and addressing substance use before it leads to injury or liability. This course helps equip leaders with essential knowledge about commonly misused substances, including alcohol, opioids, and stimulants. The course explores how substance use disorders can affect safety and productivity, reviews relevant laws and regulations, and provides practical guidance on creating a drug- and alcohol-free workplace. Participants also learn how to recognize signs of impairment, conduct education and testing, and respond to incidents with clarity and confidence. This course is ideal for leaders who must identify, manage, and respond appropriately to substance use concerns on the job site.