The EPA can change how it enforces the law about an incident. You need to know the EPA can choose a different way to enforce the law if it thinks it is necessary. The EPA gets its options from section 220. If the EPA decides to change to a different way of enforcing the law, like an intervention, it must explain why. You will find what an intervention is in section 220(c). The EPA must include its reasons in a notice, which is required under section 221(1). The EPA has to follow rules when it makes changes. These rules help the EPA make good decisions about how to enforce the law. The EPA's decisions affect how it handles incidents.