Construction Industry Air Quality Coalition (CIAQC)

Since 1989, Construction Industry Air Quality Coalition (CIAQC) has assisted the construction industry and regulatory agencies in the development of environmental regulatory strategies while minimizing the impacts on its members.


  • Worked with South Coast Air Quality Management District (SCAQMD) for a fugitive dust rule (Rule 403) that is both flexible and effective.
  • Worked with California Air Resources Board (CARB) and SCAQMD to improve Carl Moyer incentive program to fund approximately 70% of the costs to repower more than 1,000 heavy-duty diesel engines.
  • Provided extensive technical input and industry perspectives to CARB on the Off-Road Diesel Regulation that resulted in provisions that would be absent today without its involvement. These include a fleet averaging compliance option, credit for engine replacements performed prior to the regulation, small fleet definition increase from 1,500 to 2,500 hp that provides more time (2015), and PM only requirements. In addition, CIAQC convinced CARB to establish a technical review of the regulation in 2009 and 2013.
  • Raised awareness of safety issues related to diesel particulate retrofits.
  • Worked to get a statewide portable equipment registration program (PERP) implemented that replaced district by district permits and lowered fees.

Current Efforts and Activities

  • Intense involvement with CARB to demonstrate numerous implementation problems and fatal flaws with the Off-Road Regulation, including safety issues with retrofits, the state of the economy and inability of industry to afford equipment turnover, and the lack of available emission reduction technologies required for regulatory compliance. Plus, provides essential technical information to AGC as it examines the legal basis for the Off-Road Regulation.
  • Working to demonstrate the infeasibility of the SOON Program (additional NOx emission reduction program for off-road equipment) in the San Joaquin Valley.
  • Provides input to the SCAQMD on proposed indirect source rule that will require new and redevelopment projects to reduce emissions during construction and project build out.
  • Participates in advisory group created by SCAQMD to develop Green House Gas emission thresholds for development projects applicable to the California Environmental Quality Act (CEQA).
  • Provides comments to County of San Bernardino on proposed Diesel Exhaust Emission Ordinance to minimize no-work days due to projected daily air quality levels.
  • Continues aggressive industry outreach and education program to provide its members with information about air quality requirements and strengthen its position as a leader in influencing air quality policy.

For more information on CIAQC and updates on local and state air quality regulations, visit // or contact CIAQC at

Construction Industry Air Quality Coalition

2149 E. Garvey Avenue North, Ste A-11
West Covina, CA 91791
626-858-4611 FAX 626-858-4610

CIAQC is supported by the Southern California Industry Funds and voluntary contributions from industry trade associations and other interested parties.

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