South Coast Air Quality Management District Notice of Public Workshop Proposed Amended Rule 1401 - New Source Review of Toxic Air Contaminants May 27, 2026 9:30 a.m. Join Zoom Webinar Meeting - from PC or Laptop https://aqmd.zoomgov.com/j/1613163094 Zoom Webinar ID: 161 316 3094 (applies to all) Teleconference Dial In: +1 669 254 5252 (Please note if the Zoom webinar link provided does not work, copy the link into web browser, or directly enter the webinar ID into the Zoom web or mobile application) The Public Workshop will be conducted via video conferencing (Zoom) which can be accessed via your computer or smart phone. Alternatively, stakeholders can phone in to participate. We understand that this is not the same as an in-person public meeting; however, staff will take the time to listen to comments from all stakeholders. You are invited to attend the meeting electronically through Zoom or the phone. Instructions on how to participate can be found at the top of this notice. Purpose of This Meeting The South Coast Air Quality Management District (South Coast AQMD) has scheduled a Public Workshop to present and solicit information and suggestions from the public on Proposed Amended Rule 1401 New Source Review of Toxic Air Contaminants (PAR 1401), which is scheduled for a Public Hearing before the South Coast AQMD Governing Board on August 7, 2026 (subject to change). Background Rule 1401 New Source Review of Toxic Air Contaminants was adopted in 1990 and establishes cancer and non-cancer health risk requirements for new, relocated, or modified permitted sources of toxic air pollutants. South Coast AQMD implements a permitting program for equipment at stationary sources. If the equipment emits a toxic air contaminant listed in Rule 1401, the health risks associated with the toxic air contaminant will be estimated during the permitting process. The list of toxic air contaminants and methodology used for estimating health risks is based on guidance from the California Office of Environmental Health Hazard Assessment (OEHHA). The equipment will be issued a permit to operate if the health risk evaluation determines that the equipment does not exceed the health risk thresholds specified in Rule 1401. Objective of PAR 1401 Rule 1401 establishes allowable risks for permit units requiring new permits. PAR 1401 will amend the list of toxic air contaminants in Rule 1401 Table I to add new chemical compounds, update existing chemical compounds by adding associated child compounds, and include a new column for 8-hour reference exposure levels. The proposal will also include other updates such as clarifications and removing outdated chemical compounds. California Environmental Quality Act (CEQA) Pursuant to CEQA and South Coast AQMD's certified regulatory program (Public Resources Code Section 21080.5, CEQA Guidelines Section 15251(l) and South Coast AQMD Rule 110), the South Coast AQMD, as lead agency, is currently reviewing the proposed project (PAR 1401) to determine if it will result in any potential adverse environmental impacts. Appropriate CEQA documentation will be prepared based on the analysis. Available Supporting Documents The following supporting documents will be made available on or before May 22, 2026: - Preliminary Draft of PAR 1401; and - Preliminary Draft Staff Report for PAR 1401 To Obtain Copies of the Above Documents Copies of the Preliminary Draft of PAR 1401 and the Preliminary Draft Staff Report may be obtained from: Lisa Tanaka O'Malley/Public Advisor South Coast AQMD 21865 Copley Drive, Diamond Bar, CA 91765 Phone: (909) 396-2432 Email: PublicAdvisor@aqmd.gov The documents will also be available for download from the South Coast AQMD website at: https://www.aqmd.gov/home/rules-compliance/rules/scaqmd-rule-book/proposed-rules/rule-1401 Americans with Disabilities Act and Language Accessibility Disability and language-related accommodations can be requested to allow participation in the public workshop. The agenda will be made available, upon request, in appropriate alternative formats to assist persons with a disability (Gov't Code Section 54954.2(a)). In addition, other documents may be requested in alternative formats and languages. Any disability or language-related accommodation must be requested as soon as practicable. Requests will be accommodated, unless providing the accommodation would result in a fundamental alteration or undue burden to the South Coast AQMD. Please contact Michael Krause at (909) 396-2706 from 7:00 a.m. to 5:30 p.m., Tuesday through Friday, or send the request to mkrause@aqmd.gov. Key Contacts for Submitting Questions and Comments Attendees are invited to ask questions and make comments during the Public Workshop. Staff requests written comments on PAR 1401 be submitted no later than June 10, 2026. Please submit any relevant questions, comments, documents, studies, reports, or other relevant information to the contacts listed below: PAR 1401: Tiffani To South Coast AQMD 21865 Copley Drive, Diamond Bar, CA 91765 Email: tto@aqmd.gov Phone: (909) 396-2738 CEQA: Farzaneh Khalaj, Ph.D. South Coast AQMD 21865 Copley Drive, Diamond Bar, CA 91765 Email: fkhalaj@aqmd.gov Phone: (909) 396-3022 Please note that under the California Public Records Act (Gov't Code Sections 7920.000 et seq.) your written and oral comments, attachments, and associated contact information (e.g., your address, phone, email, etc.) become part of the public record and can be released to the public on request or posted on the South Coast AQMD website. 5/13/26 IVDB-4040818# INLAND VALLEY DAILY BULLETIN/ONTARIO
