Final answer:
The Planning Section of hazmat teams is instrumental in providing the ISO and ASO-HM with crucial incident threat information, ensuring proper planning and resource management during hazmat incidents.
Step-by-step explanation:
The hazmat teams' Planning Section is a key planner for supplying the Incident Safety Officer (ISO) and Assistant Safety Officer-Hazardous Materials (ASO-HM) with critical incident threat information. The key roles of the Planning Section include collecting, evaluating, and disseminating tactical information related to the incident, and preparing and documenting incident action plans. The unit also maintains information on the current and forecasted situation and on the status of resources assigned to the incident.