Laws & Regulations

SO2 Designations Status and Next Steps

Sulfur Dioxide Designations status and next steps

SO2 Designations - Round 1 Tribal Recommendations and EPA Responses

Sulfur Dioxide Designations - Tribal Recommendations

SO2 Designations - Round 2 State Recommendations and EPA Responses

Sulfur Dioxide Designations - State Recommendations Round 2

Sulfur Dioxide (SO2) Designations Round 3: Wyoming State Recommendation and EPA Response

Wyoming recommendation for Round 3 area designations and EPA's response.

Sulfur Dioxide Designations - Where You Live

Sulfur Dioxide Designations Where You Live

Clean Air Act Standards and Guidelines for Electric Utilities

This page contains the stationary sources of air pollution for theelectric utilitiesr industries, and their corresponding air pollution regulations. To learn more about the regulations for each industry, just click on the links below.

Related Rules and Programs that Help States Attain PM Standards

EPA’s national and regional rules to reduce emissions of pollutants that form particle pollution will help state and local governments meet the PM NAAQS. A number of voluntary programs also are helping areas reduce fine PM pollution.

Fine Particulate NAAQS Implementation Milestones

Implementation of the 2012 PM2.5 National Ambient Air Quality Standard (NAAQS) develops alongside continued implementation of the 2006 standard.

Development of Specific Elements for Each of the Major SIP Types for Lead (Pb)

Required elements differ depending on the type of state implementation plan (SIP)>

Affordable Clean Energy Rule

This page includes information about the affordable clean energy rule, which sets emission guidelines for CO2 from existing coal-fired electric utility generating units