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The Bay Area Air Quality Management District (BAAQMD) is proposing amendments to District Regulation 6, Particulate Matter, Rule 5: Particulate Emissions from Refinery Fluidized Catalytic Cracking Units (Rule 6-5) and is accepting comments through July 13, 2020. The proposed amendments include new emission limits and monitoring requirements for sulfur dioxide and total particulate matter with 10 microns or less in diameter (both filterable and condensable), limiting the exemption for facilities abating emissions with a wet scrubber, and removing the ammonia emission limit exemption for facilities implementing an optimization of ammonia and/or urea injection. The amendments also propose a monthly reporting requirement for monitored data. The proposed revisions are available online for Draft Rule 6-5 and summarized in the Request for Comments.

Interested parties can follow the Rule 6-5 amendment development on BAAQMD's website and submit comments to David Joe at by 5pm on July 13, 2020.

For questions specific to your facility, please email or call Divya Agarwal at 510.285.6351.