Sometime later this year, homeowners in certain swathes of West Marin are likely to face a new requirement for protecting their homes from fire risk: a five-foot vegetation buffer free of combustible plants.

Dubbed “zone zero,” the plant-free zone will be required at all homes in high- and very-high fire risk areas, according to Jason Weber, Marin’s fire chief. That includes most homes in West Marin. 

The Board of Supervisors last week approved new…