The ISO has several responsibilities after an incident concludes, including monitoring crews for injuries during cleanup, facilitating informal or formal postincident analysis, and initiating accident investigations if required. As part of postincident analysis, the ISO should provide input on six key issues and take steps like checking in with crews, documenting hazards, and identifying recurring issues. If an accident occurs, the ISO helps investigate by collecting information, analyzing the accident chain of events, and making recommendations to prevent future occurrences without blaming individuals.