Emerson. Some of the challenges in petrochemical plants include compliance, aging equipment, working with different feedstocks and retiring subject matter experts. Compliance challenges include emissions, chemical safety, hazardous waste and pollution, including statutes and regulations such as the Resource Conservation and Recovery Act, the Toxic Substances Control Act, and Chemical Facility Anti-Terrorism Standards. Hazmat (hazardous materials) teams are trained to deal with chemical leaks or spills. Process Hazard Analysis is used to assess potential hazards in chemical plants. Regulations go so far as to cover safety showers and leaks from pressure relief devices (PRDs).