Step 3 – Source Selection
- Determine pollutants to consider
- Estimate baseline visibility impact for source selection
- Document the source selection process and result
STEP 4 – Characterize Control Measures Factors
- Determine emission control measures to consider
- Selection of emissions information for characterizing emissions-related factors
- Characterize the cost of compliance (Factor 1)
- Characterize the time necessary for compliance (Factor 2)
- Characterize energy and non-air environmental impacts (Factor 3)
- Characterize remaining useful life of the source (Factor 4)
- Characterize visibility benefits
STEP 5 – Select Control Measures for Reasonable Progress
- The cost of compliance and visibility benefits (Factor 1)
- Time necessary for compliance (Factor 2)
- Energy impacts and non-air environmental impacts (Factor 3)
- Remaining useful life (Factor 4)
- Establish emission limits, compliance schedules, and other measures necessary to make reasonable progress
For more information, please visit the Montana Department of Environmental Quality web page:
https://azdeq.gov/RegionalHaze