Rule 11-18 Risk Reduction Facilities
View a list of facilities required under the Air District’s Facility Risk Reduction Program to undergo health risk assessments, or HRAs, and, if found to be above a specified risk action level, to implement risk reduction measures.
The Air District is currently accepting comments on Draft Amendments to Rule 11-18. Written comments will be accepted through October 13, 2025 at 5:00 PM and a public workshop will be held on October 2, 2025 from 6:00 to 8:00 PM. For more information, please visit the Rule 11-18 Amendment webpage.
Under Regulation 11, Rule 18, the Air District conducts health risk assessments for facilities whose emissions pose potentially high health risks. These HRAs will be phased in over several years, starting with sites that have the highest potential health risks.
Those facilities whose emissions are found to have health risks at or above a specific risk action level must prepare and implement a risk reduction plan, or RRP, that is approved by the Air District.
During this process for each facility, there will be opportunity for public comment on the HRA and the RRP.
Once the Air District has approved an RRP, the facility will need to meet the implementation goals and deadlines established in the plan and will need to demonstrate compliance with all required risk reduction measures within five years. Annual progress reports will be posted below during this implementation phase.
Program Information
Phase I Facilities
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Last Updated: 2025/8/28