The Division of Environmental Quality shall be responsible for taking the following precautions to prevent the national ambient air quality standards from being exceeded:

1. (1) Ambient air monitoring in any area that can reasonably be expected to be in excess of the national ambient air quality standards.

2. (2)

   1. (A) Computer modeling of regulated air pollutant emissions for any area that can reasonably be expected to be in excess of the national ambient air quality standards, and review of the ambient air impacts of any new or modified source of federally regulated air emission that is the subject of the requirements of this part.
   2. (B) All computer modeling shall be performed using United States Environmental Protection Agency-approved models, and using averaging times commensurate with averaging times stated in the national ambient air quality standards.