This repository serves as an UNOFFICIAL archive of documentation for the United States Environmental Protection Agency's (EPA) air quality dispersion models. Its purpose is to provide the community with easy access to these valuable resources.

Note: The code for each model is stored in a separate repository:
Repository for Model Code

Anyone is welcome to fork this repository and make changes. However, please note that the individual documents in this repository will NEVER be modified. Pull requests can be made directly to the main branch of this repository to add the latest documentation or to include documentation from older model versions that are not yet available here.

This repository is not affiliated with or endorsed by the EPA. It serves solely as an archive of documentation for various EPA air quality dispersion models, providing access to these resources for community use.