Which organization could provide information on plant emissions before the initial meeting?

The correct answer is the State Emergency Response Commission. This organization plays a critical role in coordinating responses to hazardous materials incidents at the state level. One of their responsibilities is to ensure the safety and health of the public by managing the reporting of hazardous chemicals and providing information about chemical releases and emissions from facilities. They compile reports on plant emissions and other safety data, which can be vital for pre-meeting assessments and understanding potential hazards.

The other organizations listed, while important in their respective areas, do not primarily focus on environmental emissions data in the context of hazardous materials. The Federal Bureau of Investigation is primarily concerned with law enforcement and national security. The Department of Transportation addresses transportation safety and regulations but does not compile emissions data from plants. The Environmental Protection Agency, although relevant for environmental issues and emissions, tends to focus on broader federal regulatory standards and enforcement rather than localized, immediate data accessible before a meeting at the state level.