A CHMM handles, manages, or advises others on hazardous materials or situations associated with or potentially including such items. A CHMM may perform management and/or compliance duties for a corporation, business, government, or some other organization in this capacity, or work in a related field associated with hazardous materials such as environmental protection, safety, hazmat transportation, or security. Any time hazardous materials are involved, a CHMM professional can advise on proper handling and management for ensuring safety and compliance.