Classification of regions.

  1. Law
  2. CFR 40
  3. Protection of Environment
  4. Environmental Protection Agency
  5. Air Programs
  6. Approval and Promulgation of Implementation Plans
  7. Virginia
  8. Classification of regions.

Checkout our iOS App for a better way to browser and research.

§ 52.2421 Classification of regions.

The Virginia plan was evaluated on the basis of the following classifications:

Expand Table
Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Photochemical oxidants (hydrocarbons)
Eastern Tennessee-Southwestern Virginia Interstate I I III III III
Valley of Virginia Intrastate I III III III III
Central Virginia Intrastate I III III III III
Northeastern Virginia Intrastate IA III III III III
State Capital Intrastate I III III III I
Hampton Roads Intrastate I II III III I
National Capital Interstate I I III I I

[37 FR 15090, July 27, 1972, as amended at 39 FR 16347, May 8, 1974]


Download our app to see the most-to-date content.