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Updated Mar 18, 2026

The full draft ordinance adopted by the Marin County Board of Supervisors in November 2019, establishing a new subchapter to Marin County Code Title 19 (Building Code) with requirements for low carbon concrete. The ordinance includes findings on climate change impacts to Marin County (wildfire risk, sea level rise), legal authority under the California Health and Safety Code, and the complete code language for Chapter 19.07 covering definitions, compliance pathways, cement content limits, and embodied carbon limits.

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