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Glendale commissioners hear warnin gs on "Zone 0" rules that could reshape urban tree canopy

Sustainability Commission · February 6, 2026
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

A sustainability commission presentation outlined trade-offs in California's "Zone 0" ember-resistance regulations, warning that strict interpretations could require removing vegetation near homes, raise homeowner costs, affect insurance and threaten parts of Glendale's canopy; commissioners asked staff to track the regulation and related legislation.

Stephanie Landrigan, a landscape architect and director of Altadena Green, told the Glendale Sustainability Commission on Feb. 5 that California's "Zone 0" ember-resistance regulation is moving from statute into the Board of Forestry's regulation process and could have substantial local impacts if enacted strictly.

Landrigan said Zone 0 began as ember-resistant legislation authored in 2020 by Assemblymember Laura Friedman and is now being framed into regulation by the Board of Forestry. She described three options under discussion: a strict no-vegetation approach in the immediate perimeter of structures; a regime allowing well-maintained trees with required trimming (for example, lifting canopies five feet from roofs and 10 feet from chimneys); and…

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