Final answer:
Yes, Jason should make an emergency report because he is dealing with a chlorine leak, which is a hazardous material that poses a significant health risk.
Step-by-step explanation:
Jason has stopped at the side of the highway with a flat tire and discovered that his cargo of chlorine tanks (UN1017) is leaking. Given the nature of the substance, this is a hazardous materials situation and it is critical to make an emergency report in accordance with United States Department of Transportation hazardous materials regulations, as well as the EPA's hazardous waste regulations. Chlorine is a toxic gas that can cause serious health risks if inhaled or released into the environment, hence why quick and responsible action must be taken to minimize the hazard and protect public health and safety.