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The interactive, online Regulation Navigation tools allow owners, operators, and other industry personnel to determine the applicability and regulatory requirements of certain air quality rules to their facilities.


For complex Clean Air Act rules, the regulated community and government agencies need assistance in understanding specific rule applicability and requirements. The Regulation Navigation (Reg Nav) interactive, online tools are designed to help co-regulators and the regulated community to determine the applicability and regulatory requirements for certain air quality rules to their facilities. The process entails answering a series of questions about facilities, which leads to a personalized document outlining the regulatory requirements.


  • Simplifies and encourages compliance with Clean Air Act Regulations
  • Reduces compliance assistance requests to government agencies, and
  • Meets the needs of the regulated community, states, and tribal governments.


  • Created nine tools for 11 air quality regulations. These include:
    1. Municipal Solid Waste Landfills – Subpart AAAA
    2. Paint Stripping and Miscellaneous Surface Coating Operations at Area Sources: determining exemption eligibility – Subpart HHHHHH
    3. Standards of Performance for New Stationary Sources (NSPS):
      • Municipal Solid Waste Landfills- Subpart XXX:
      • Spark Ignition Internal Combustion Engines- Subpart JJJJ and Stationary
    4. National Emission Standards for Hazardous Air Pollutants (NESHAP):
      • Reciprocating Internal Combustion Engines (RICE)- Subpart ZZZZ
      • Brick and Structural Clay Products Manufacturing- Subpart JJJJJ
      • Portland Cement Manufacturing Industry- Subpart LLL
      • Area Source Industrial, Commercial, and Institutional Boilers- Subpart JJJJJJ
    5. Emissions Guidelines and Compliance Times for Municipal Solid Waste Landfills- Subpart OOO
  • Coordinated with partners such as North Carolina, Texas, Nebraska, and Michigan, and local and tribal agencies; engaged as needed with appropriate trade associations, and
  • Conducted outreach to state, local, and tribal organizations, and industry membership organizations.