Regulations last checked for updates: Oct 15, 2026

Title 40 - Protection of Environment last revised: Oct 13, 2026
§ 52.2671 - Classification of regions.

The Guam plan was evaluated on the basis of the following classifications.

Air quality control region Pollutant
Particulate matter Sulfur oxides Nitrogen dioxide Carbon monoxide Photochemical oxidants (hydrocarbons)
GuamIIIIIIIIIIIIII
cite as: 40 CFR 52.2671