Amendments to Title 129
Oct 10, 2025
Amendments to Title 129. The amendments make changes in Title 129, Chapters 1 through 9, 11 through 16, and in Appendices I and II. The proposed revisions correct typographical errors, clarify and simplify regulatory language, update reference dates for some federal regulations cited in the title, incorporate recent federal rulemaking, reduce the notification timeframe for preconstruction activities, add definitions of terms used in the regulations, and revise the agency name to reflect the NDEE-NDNR merger (LB317).
Retained regulations are renumbered appropriately and chapter and section references are updated accordingly. Administrative changes to correct/revise grammar, capitalization, numbering, spelling, and typographical errors throughout the regulations.
Please refer to the attached Title 129 Crosswalk documents for detailed line-item revisions and descriptions which is incorporated in this memo by this reference.
All Chapters and Appendices
• Update Code of Federal Regulations (CFR) citation to “July 1, 2023”
• Change department name to “Department of Water, Energy, and Environment” and replace “NDEE” with “DWEE”
• Correct typographical, grammatical, and formatting errors
• Update formatting to accommodate revisions
• Simplify language as needed
Chapter 1 General Provisions; Definitions
• Add definitions
o “air pollutant” (new section 002.10)
o “council” (new section 002.34)
o “person” (new section 002.72)
• Clarify definition of “Complete” (section 002.28) by adding “as deemed by the Department”
Chapter 2 Nebraska Air Quality Standards
• Spell out “sulfur dioxide” (section 002.02)
Chapter 3 Construction Permits
• Reformat/revise language to
o describe and clarify the construction permit process and activities allowed prior to receipt of a permit (section 001.01),
o list eligibility for preconstruction activities (section 001.01A), and
o list required actions before initiating pre-construction activities and change notification timeframe from 30 to five (5) days (section 001.01)
• Spell out pollutants
o “particulate matter” (section 001.03A1)
o “fine particulate matter” (section 001.03A2)
Chapter 4 Prevention of Significant Deterioration (PSD)
• Add “as of July 1, 2023” to clarify the version of CFR referenced (section 001)
• Replace “Part” with “§” (section 001.02O)
Chapter 5 Acid Rain
• Update Code of Federal Regulations (CFR) citation to “2023” (section 001)
Chapter 6 Operating Permits
• Administrative changes (grammar, spelling, capitalization, terminology)
• Remove section 005, which references now-obsolete federal regulations
• Update Code of Federal Regulations (CFR) citation to “2023” (section 010)
Chapter 7 General Permits
• Administrative changes (capitalization)
Chapter 8 Permits-by-Rule
• Administrative changes (grammar, spelling, chapter reference, renumbering)
Chapter 9 Permit Revisions; Opening for Cause
• Administrative changes (grammar)
Chapter 11 Emissions Reporting, When Required
• Revise text to reflect the use of electronic emission inventory reporting (sections 001 and 002)
Chapter 12 New Source Performance Standards and Emission Limits for Existing Sources
• Incorporate New Source Performance Standards (NSPS) applicable to Nebraska sources
o Add Subpart BBa – Kraft Pulp Mill Affected Sources for Which Construction, Reconstruction, or Modification Commenced After May 23, 2013 (section 001.02)
o Replace “WWW” with “XXX” (section 001.75) to align with current rule subpart identifier
o Add Subpart OOOOa – Crude Oil and Natural Gas Facilities for which Construction, Reconstruction, or Modification Commenced After May 23, 2013 (new section 001.87)
o Add Subpart QQQQ – New Residential Hydronic Heaters and Forced-Air Furnaces (new section 001.88)
o Add Subpart TTTT – Greenhouse Gas Emissions for Electric Generating Units (new section 001.89)
Chapter 13 Hazardous Air Pollutants
• Incorporate National Emission Standards for Hazardous Air Pollutants (NESHAP) applicable to Neb
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