What happens if pollutant emissions over the permit limit?

What happens if pollutant emissions over the permit limit?

Facility operators must quickly act to address emissions exceeding the limit, including shutting down the unit, if required. Emissions that are over the limit are reported to the federal and local air quality management  agency (reporting requirements will vary from state to state) as the environmental noncompliance. The penalties for violating the mandates can be very steep.