December 1, 2020
The California Air Resources Board (CARB) recently approved significant changes to the requirements for reporting emissions from stationary sources to help monitor air pollution at local levels. Local air pollution control districts previously controlled reporting, but as of January 1, 2020, the Regulation for the Reporting of Criteria Air Pollutants and Toxic Air Contaminants implements uniform statewide annual reporting of criteria air pollutant and toxic air contaminant emissions data. The amendments adopted last week aim to improve this program by creating a unified reporting mechanism and establishing expanded and consistent reporting criteria. Thus, sources should stay up to date on changes to the regulation’s reporting triggers and formats.
Among other changes, the amendments do the following:
A CARB Board Member explained that emission inventories are “a fundamental tool for understanding the sources that contribute to California’s air quality and climate challenges.” The new amendments are designed to improve data collection and trend assessment to better prioritize reduction efforts in emissions hot spots.
The amendments’ cost impact on the private sector is “projected to be $9.6 million annually, maximum,” primarily for data reporting. Local and state governments are expected to incur “a maximum of $5.6 million and $149,000 per year, respectively,” in implementation costs.
The next step in the process is for the Office of Administrative Law to review the amendments, and when they become final, they may be challenged by industry members who are impacted.
 See Proposed Amendments to the Regulation for the Reporting of Criteria Air Pollutants and Toxic Air Contaminants, art.2 (Requirements for Calculating and Reporting Criteria Pollutant and Toxic Air Contaminant Emissions), https://ww3.arb.ca.gov/regact/2020/ctr/pro.pdf.
 Public Hearing to Consider Amendments to the Regulation for the Reporting of Criteria Air Pollutants and Toxic Air Contaminants Staff Report: Initial Statement of Reasons at 5 (Sept. 29, 2020), https://ww3.arb.ca.gov/regact/2020/ctr/isor.pdf.
 CARB Approves New Approach to Measuring Stationary Source Emissions to Aid Local Air Pollution Inventory Efforts (Nov. 24, 2020), https://ww2.arb.ca.gov/news/carb-approves-new-approach-measuring-stationary-source-emissions-aid-local-air-pollution.
 Public Hearing to Consider Amendments to the Regulation for the Reporting of Criteria Air Pollutants and Toxic Air Contaminants Staff Report: Initial Statement of Reasons at 2 (Sept. 29, 2020), https://ww3.arb.ca.gov/regact/2020/ctr/isor.pdf.
 Amendments to the Regulation for the Reporting of Criteria Air Pollutants and Toxic Air Contaminants, https://ww2.arb.ca.gov/rulemaking/2020/proposed-amendments-reporting-criteria-air-pollutants-and-toxic-air-contaminants (last visited Nov. 30, 2020) (tracking status of proposed amendments).
The following Gibson Dunn lawyers assisted in preparing this client update: Thomas Manakides, Abbey Hudson, Joseph Edmonds and Jessica Pearigen.
Gibson Dunn’s lawyers are available to assist in addressing any questions you may have regarding these developments. Please contact the Gibson Dunn lawyer with whom you usually work, any member of the firm’s Environmental Litigation and Mass Tort practice group, or any of the following:
Stacie B. Fletcher – Co-Chair, Washington, D.C. (+1 202-887-3627, firstname.lastname@example.org)
Daniel W. Nelson – Co-Chair, Washington, D.C. (+1 202-887-3687, email@example.com)
Thomas Manakides – Orange County (+1 949-451-4060, firstname.lastname@example.org)
Abbey Hudson – Los Angeles (+1 213-229-7954, email@example.com)
Joseph D. Edmonds – Orange County (+1 949-451-4053, firstname.lastname@example.org)
Jessica M. Pearigen – Orange County (+1 949-451-3819, email@example.com)
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