Replacement Terminal Environmental Assessment

4. Can Mercer County and Trenton Mercer Airport request an EIS?

The National Environmental Policy Act (NEPA) process is determined by the FAA. The FAA determines the type of NEPA review that may include a Categorical Exclusion (CATEX), Environmental Assessment (EA), and Environmental Impact Statement (EIS). The FAA has determined that the process to follow at this time is an EA. That may change if the FAA determines there are environmental impacts that would be significant and mitigation of the impacts cannot reduce the impacts below significant levels.


The type of NEPA process is based upon the anticipated environmental impacts. A CATEX refers to a category of actions that do not individually or cumulatively have a significant effect on the human environment, and for which, neither an EA nor an EIS is required. An EA is used to determine whether a proposed action has the potential to significantly affect the human environment that will provide sufficient evidence and analysis for determining whether to prepare an EIS or a Finding of No Significant Impact (FONSI). An EIS is a detailed written statement required when one or more environmental impacts would be significant and mitigation measures cannot reduce the impact(s) below significant levels