The proposed law says the EPA can change how it deals with an incident. You can think of the EPA as a group that helps protect the environment. The EPA can change its approach if it thinks the situation requires it. The EPA might change to a different approach, like an intervention, which is described in section 246. If it does, it must explain why it made the change in a notice, as required by section 249(1). This notice is like a formal announcement that explains what the EPA is doing. The EPA has to follow certain rules when it makes these changes, and it has to consider the circumstances of the incident. You can find more information about these rules in the proposed law, particularly in sections like section 246 and section 249(1). The EPA's main goal is to protect the environment, and it can adjust its approach to achieve this goal.