This memo provides some guidance on how long project-level “hotspot” analyses can be considered valid for NEPA air quality analysis, based on the model used.
Using the MOVES and EMFAC & NEPA Evaluations–Memorandum (PDF)
This memo provides some guidance on how long project-level “hotspot” analyses can be considered valid for NEPA air quality analysis, based on the model used.
Using the MOVES and EMFAC & NEPA Evaluations–Memorandum (PDF)