AEDT Guidance

As published in the Federal Register (80 FR 27853), the Aviation Environmental Design Tool (AEDT) version 2b replaces AEDT 2a, the Integrated Noise Model (INM) and the Emissions and Dispersion Modeling System (EDMS) as the required tool for noise, fuel burn, and emissions modeling of FAA actions. AEDT 2b applies to analyses initiated after May 29, 2015, through to the release date of the next model version update, AEDT 2c. Effective September 12, 2016, AEDT 2c supersedes AEDT 2b as the required environmental modeling tool.

Guidance is provided below on using AEDT to comply with NEPA and other environmental project requirements.


Guidance on Categorical Exclusions

Aerobatic Practice Areas

Legislative Categorical Exclusion