EPAFinal Rule

Air Quality State Implementation Plans; Approvals and Promulgations: Guam; Clean Data Determination for the Piti-Cabras Nonattainment Area for the 2010 1-Hour Sulfur Dioxide National Ambient Air Quality Standard

EnvironmentHealthcare

Summary

The EPA is confirming that the Piti-Cabras area in Guam has achieved clean air standards for sulfur dioxide pollution and no longer needs a detailed cleanup plan. This means the region has successfully reduced harmful air pollution to safe levels, which protects public health and reduces the need for strict emissions controls in that area.

Key Points

  • 1Guam's Piti-Cabras area has met federal air quality standards for sulfur dioxide, a harmful air pollutant that can cause respiratory problems
  • 2The EPA is formally recognizing that this region no longer violates the 2010 sulfur dioxide air quality standard
  • 3Businesses and facilities in the area may face fewer regulatory requirements since the air quality problem has been resolved
  • 4This change applies specifically to the Piti-Cabras area and does not affect other parts of Guam or other sulfur dioxide standards
  • 5The approval becomes official as of the publication date, completing the EPA's review process for Guam's air quality improvement

Impact Assessment

If you are a manufacturer or energy company in Guam's Piti-Cabras area, this means you no longer need to comply with the strict emissions controls previously required under a state implementation plan for sulfur dioxide pollution.

Impact Level
Routine
Geographic Scope

State-specific

Compliance Cost

None

Who is Affected
ManufacturersEnergy CompaniesState Governments

Key Dates

Published

September 18, 2025

Regulatory Connections

Amends CFR Sections
40 CFR Part 52

This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.