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The New York State Department of Environmental Conservation has added a link to a translation service developed by Microsoft Inc., entitled Bing Translator, as a convenience to visitors to the DEC website who speak languages other than English.

Additional information can be found at DEC's Language Assistance Page.

Most Common Acronyms Used in Part 231

The following acronyms are commonly used in Part 231:

1) BACT - Best Available Control Technology
2) CO - Carbon Monoxide
3) ERC - Emission Reduction Credits
4) LAER - Lowest Achievable Emission Rate
5) NNSR - Non-attainment New Source Review
6) NOx - Oxides of Nitrogen
7) NSR - New Source Review
8) OTR - Ozone Transport Region
9) PAE - Projected Actual Emissions
10) PAL - Plantwide Applicability Limit
11) PEP - Project Emission Potential
12) PM - Particulate Matter
13) PM 10 - Particulate Matter less than 10 microns
14) PM 2.5 - Particulate Matter less than 2.5 microns
15) PSD - Prevention of Significant Deterioration
16) PTE - Potential to Emit
17) RMRR - Routine Maintenance, Repair, or Replacement
18) SIL - Significant Impact Level
19) SIP - State Implementation Plan
20) SO2 - Sulfur Dioxide
21) VOC - Volatile Organic Compounds


  • Contact for this Page
  • NYSDEC
    Division of Air Resources
    Part 231 Implementation Guidance
    625 Broadway
    Albany, NY 12233-3254
    518-402-8403
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