PG&E wildfire mitigation plan: what it means for your home

Last updated 2026-07-25

What is PG&E's wildfire mitigation plan, exactly?

PG&E's Wildfire Mitigation Plan (WMP) is a document the utility files every year with the California Public Utilities Commission (CPUC), laying out how it plans to reduce the risk that its power lines, poles, and equipment start fires. It covers things like undergrounding sections of line in high-risk areas, replacing bare wire with covered conductor, clearing vegetation near equipment, and calling Public Safety Power Shutoffs (PSPS) when weather conditions get dangerous. State law requires it: California Public Utilities Code Section 8386 mandates that each electric utility submit a wildfire mitigation plan for CPUC review ^[1]. This is not the same thing as your personal defensible space obligation. PG&E's plan is about their infrastructure. Your obligation under California law is about your house and the land around it. People conflate the two constantly, and it matters for insurance purposes because carriers and the FAIR Plan look at your property-level mitigation, not what PG&E is doing on a transmission tower three miles away. PG&E's 2023-2025 plan update reported spending over $6 billion since 2019 on wildfire mitigation work, including more than 10,000 miles of covered conductor installed. Whether that number moves the needle on your specific street depends entirely on whether your circuit is in a priority zone. Ask your utility rep or check PG&E's public risk maps for your address; state-level totals don't tell you much block by block.

How does PG&E's plan affect PSPS shutoffs and my power?

PG&E calls a PSPS when forecasters predict a combination of low humidity, high wind, and dry fuels in a high fire-threat district (HFTD), the same map CAL FIRE and the CPUC use to define elevated and extreme fire risk zones. The utility's 2023 WMP states it aims to reduce PSPS scope and duration each year through targeted grid hardening, but shutoffs are still a live tool, not a relic. Homes in Tier 2 and Tier 3 HFTD zones (the CPUC's higher-risk designations) see these most often, especially in fall wind events. If your area is prone to shutoffs, plan for 24 to 72 hours without grid power as a baseline, longer in severe events. That means backup power for medical equipment, a way to keep food cold, and a plan for well pumps if you're on one. This isn't paranoia; PG&E's own PSPS event reports document multi-day outages affecting tens of thousands of customers in a single event during peak fire season. Check your specific circuit's PSPS history and HFTD tier here: [your local fire district's utility risk designation]. Rules and shutoff thresholds vary by circuit and by utility (PG&E, SCE, and SDG&E each run separate PSPS programs), so don't assume a neighbor's experience matches yours.

When does the California defensible space law go into effect?

California's defensible space law, Public Resources Code Section 4291, has been in effect for decades and requires 100 feet of defensible space clearance around structures in State Responsibility Areas and some Local Responsibility Areas designated as Very High Fire Hazard Severity Zones ^[2]. That part isn't new. What's changing is the enforcement detail inside that 100 feet. CAL FIRE and the Board of Forestry have been developing an ember-resistant zone rule, informally called "Zone 0," that requires the 5 feet immediately around a home to be cleared of combustible material: no bark mulch, no wood fencing attached to the house, no stored firewood against the wall. This rule was authorized by Assembly Bill 3074 (2020) and has moved through a lengthy regulatory process. As of the most recent Board of Forestry timelines, the ember-resistant zone regulations are targeted for adoption with compliance phased in around 2026, though the exact effective date has shifted more than once as the rulemaking process continues. If you're asking specifically what changes in 2026, check CAL FIRE's defensible space page directly before you assume a hard deadline, because these dates have moved before. For the details on what to actually do inside each zone right now, see our breakdown of defensible space.

Why won't people follow the defensible space law in California?

Cost, time, and a fair amount of magical thinking are the three real reasons, in roughly that order. Clearing 100 feet around a home on a wooded lot can mean removing mature trees, regrading slopes, and hauling brush, work that can run into the thousands of dollars depending on lot size and vegetation density. For a retiree on a fixed income with an acre of oak woodland, that's not a weekend project. There's also enforcement reality. Local fire departments are supposed to inspect for PRC 4291 compliance, but staffing is thin in a lot of rural counties, and a warning letter doesn't carry the same weight as an insurance non-renewal notice. Some homeowners genuinely don't know the rule applies to them; others know and gamble, figuring the fire will hit somewhere else first. And some of it is aesthetic and emotional. People move to wooded properties with the trees close to the house because they like that setting; cutting them down feels like undoing the reason they bought the place. None of that changes the physics: unmanaged vegetation within 100 feet of a structure is one of the strongest predictors of home loss in a wildfire, according to CAL FIRE's post-fire damage assessments ^[2].

How to prevent wildfires (what actually reduces ignition risk)

Most wildfires in California are human-caused, not lightning-caused. CAL FIRE data consistently shows the large majority of ignitions come from power lines, vehicles, equipment sparks, unattended campfires, and arson, not natural causes ^[2]. That means prevention is mostly about behavior and infrastructure, not luck. At the individual level: don't mow dry grass in the afternoon heat (a metal blade hitting a rock throws sparks), don't drag chains behind a trailer, put out campfires cold to the touch, and don't use power tools like chainsaws or grinders outdoors during red flag warning days. Ready.gov's wildfire preparedness guidance specifically flags equipment use and debris burning as common ignition triggers homeowners can control directly ^[3]. At the utility level, this is where PG&E's mitigation plan actually matters: covered conductor, faster fault detection, and PSPS during extreme wind events are the utility-side version of "don't throw sparks into dry grass." Both layers matter. A homeowner with a spotless property can still lose the house to a fire that started from a transmission line two ridges over.

How to prepare for a wildfire (before, during, and after)

Preparation splits into three phases, and most people only do the first one, if that. Before fire season: harden your home (ember-resistant vents, Class A roofing, enclosed eaves), clear defensible space per PRC 4291, and build a go-bag with documents, medications, and a week of essentials. Ready.gov recommends signing up for local emergency alerts and identifying two evacuation routes from your neighborhood, since one route can get blocked by fire or traffic ^[3]. During an active fire or evacuation warning: leave early. Don't wait for a mandatory order if conditions look bad; that's the single biggest mistake evacuation researchers keep flagging after major fires. Load your car, take pets, and go before smoke reduces visibility on the road out. After the fire: document everything for insurance before you touch or clean anything, photograph structural damage from multiple angles, and keep receipts for any temporary housing or repair costs. If your policy got non-renewed before the fire even happened, that documentation still matters for future coverage applications. For a walkthrough of what a burned structure inspection actually involves, see house fire and fire at a house.

How to prevent forest fires and how to avoid forest fires on your land

If you own forested acreage, prevention is mostly about fuel management: thinning dense stands, removing ladder fuels (the small trees and brush that let ground fire climb into the canopy), and maintaining fuel breaks along property lines and roads. The US Forest Service and CAL FIRE both recommend maintaining spacing between tree crowns, especially on slopes where fire moves faster uphill. Avoid parking vehicles on dry grass (catalytic converters run over 500°F and are a documented ignition source), avoid outdoor burning on windy or red flag days, and keep chainsaws and mowers equipped with spark arrestors where required by local fire code. Many counties actually mandate spark arrestors on outdoor power equipment during fire season; check your county fire authority for the specific ordinance. If you're managing a rural or forested property near Washington or Oregon border areas, clearing contracts and cost-share programs exist through state DNR agencies; see our guide on wildfire defensible space clearing contracts for how those programs work and what they cost.

How to prepare for forest fires if you live near wildland

Living adjacent to forest or open wildland means your prep list is longer than a suburban homeowner's. You need defensible space out to the full 100 feet where terrain allows, a water source independent of grid power (generators fail, wells need electricity), and an evacuation plan that accounts for narrow forest roads that can jam or burn out. CAL FIRE's "Ready, Set, Go!" framework breaks this into three stages: Ready (year-round preparedness and defensible space), Set (packing and staying alert when fire risk is elevated), and Go (evacuating immediately when told, no exceptions) ^[2]. It's a genuinely useful mental model because it forces you to separate "things I do every year" from "things I do in the next ten minutes." If your property backs up to national forest or BLM land, check whether your local ranger district offers fuel reduction programs; several run cost-share thinning projects for adjacent private landowners. Your county fire safe council is usually the fastest way to find out.

What fire safe home rules take effect in 2026?

This is the question everyone in a Very High Fire Hazard Severity Zone is asking right now, and the honest answer is: the specifics are still being finalized, so verify before you budget around a date. The most significant pending change is the ember-resistant "Zone 0" rule for the 5 feet nearest structures, authorized under AB 3074 and moving through California's Board of Forestry and Fire Protection rulemaking process. What's expected to be in it: no combustible mulch, stored firewood, or wood fencing within 5 feet of the home; noncombustible ground cover like gravel or pavers instead; and removal of anything that could carry ember-driven ignition directly to siding, vents, or eaves. Insurers and some FAIR Plan underwriting guidelines already informally reward homes that meet this standard even before it's mandatory, because the physical fire science behind it (ember cast starting fires within 5-20 feet of structures, not massive flame fronts) is well established in CAL FIRE and Insurance Institute for Business & Home Safety research. Don't wait for the mandatory date to do this work. It's one of the cheaper hardening projects (gravel and pavers cost far less than a new roof) and it's the piece most directly tied to ember ignition, which is how most homes are actually lost in wildfire-urban interface fires. For a full walkthrough of what noncombustible landscaping near the house looks like, see fire safe landscaping California next to house. This is exactly the kind of prep our $99 Wildfire Insurance Survival Kit is built around: a structured way to document your home's defensible space, hardening upgrades, and mitigation history so you have something concrete to send an insurer or adjuster, more than photos on your phone. Build yours at /survival-kit-builder.

Is Santa Barbara safe from fire?

No California coastal or foothill community is "safe" from fire in an absolute sense, and Santa Barbara County has a long, well-documented fire history that argues against complacency. The Thomas Fire (2017) burned over 280,000 acres and was, at the time, the largest wildfire in modern California history, followed by the deadly Montecito debris flow in January 2018 that killed 23 people, a disaster directly tied to the burned, denuded hillsides above town ^[4]. Much of the Santa Barbara foothills and East/West mountain areas sit within CAL FIRE-designated Very High Fire Hazard Severity Zones, meaning PRC 4291 defensible space requirements apply there. The city and county have active vegetation management and defensible space inspection programs specifically because of this history. If you're evaluating a property in the Santa Barbara area, check its specific hazard zone designation on CAL FIRE's FHSZ viewer rather than relying on general reputation; risk varies block by block depending on slope, aspect, and distance from wildland vegetation, and "safe" is really a spectrum, not a binary.

How can we prevent forest fires at the community level?

Individual defensible space matters, but fire doesn't respect property lines, so community-level prevention is where the bigger risk reduction happens. Fire Safe Councils, which exist in most California counties, coordinate neighborhood-scale fuel breaks, chipper days, and grant-funded vegetation removal that individual homeowners can't fund alone. Local ordinances requiring defensible space compliance, spark arrestor use, and burn permits during fire season are enforcement tools, but they only work if neighbors actually comply, since one uncleared lot upwind can undo a whole block's hardening work. This is part of why insurers increasingly look at community-level wildfire risk scores, more than individual parcels, when deciding whether to write or renew a policy in a given zip code. Utility-side prevention (PG&E's undergrounding and PSPS programs, similar plans from SCE and SDG&E) is the other half of the community equation. None of it is a substitute for individual defensible space work, but it does reduce the number of ignition sources a community has to defend against in the first place. For general prevention messaging aimed at everyday behavior, only you can prevent wildfires covers the Smokey Bear framing and what it still gets right.

What should I document for insurance if I'm near a PG&E high-risk zone?

If your address falls in a PG&E Tier 2 or Tier 3 High Fire-Threat District, insurers will ask about it, directly or indirectly, through your CAL FIRE hazard zone designation. What you can control is your own mitigation documentation: defensible space clearance dates and photos, ember-resistant vent upgrades, roof material and age, and any professional inspection reports. We don't negotiate with insurers, file claims, or promise coverage or reinstatement, that's not what this is. What actually helps is having your own organized record: dated photos of your cleared zones, receipts for hardening work, and a copy of any fire department defensible space inspection, so that when you apply for coverage, appeal a non-renewal, or talk to the California FAIR Plan, you're not scrambling to recreate history from memory. This is the gap our $99 Wildfire Insurance Survival Kit is built to close: a one-time structured document set so you walk into that conversation with your own evidence in hand, not proof for us to file on your behalf. Start at /survival-kit-builder.

Frequently asked questions

When does the California defensible space law go into effect?

California's core defensible space law, PRC 4291, has been active for decades and requires 100 feet of clearance around structures in high fire hazard zones. What's new is the ember-resistant 5-foot "Zone 0" rule authorized by AB 3074, with compliance targeted around 2026, though the exact enforcement date has shifted during the rulemaking process. Check CAL FIRE's defensible space page for the current status.

Why won't people follow the defensible space law in California?

Mostly cost and time. Clearing 100 feet of vegetation on a wooded lot can mean removing mature trees and hauling brush, which can cost thousands of dollars. Enforcement is also uneven since many rural fire departments are understaffed for inspections, and some homeowners simply don't realize the rule applies to their property.

How to prevent wildfires as an individual homeowner?

Avoid mowing dry grass in afternoon heat, never drag chains behind trailers, extinguish campfires cold, and skip outdoor power tool use on red flag warning days. Most California wildfires are human-caused, not natural, according to CAL FIRE data, so behavior around equipment and open flame is the highest-leverage prevention step available to individuals.

How to prepare for a wildfire if I get an evacuation warning?

Leave as soon as a warning (more than a mandatory order) is issued. Pack your go-bag, load pets and essential documents, and take a pre-identified evacuation route rather than waiting to see how bad conditions get. Waiting for a mandatory order is one of the most common mistakes in fatal wildfire evacuations.

How to prevent forest fires on rural or forested property?

Thin dense tree stands, remove ladder fuels like low brush and small trees, and maintain fuel breaks along roads and property lines. Avoid parking on dry grass, since hot catalytic converters are a documented ignition source, and follow local ordinances requiring spark arrestors on chainsaws and mowers during fire season.

How to avoid forest fires when using equipment outdoors?

Check red flag warning status before using chainsaws, mowers, or grinders outdoors, since a single spark on dry fuel can ignite a fire in seconds. Equip outdoor power tools with spark arrestors where required, and avoid any metal-on-rock contact from mower blades in tall dry grass during peak fire season.

How to prepare for forest fires if you live in a wildland-adjacent home?

Follow CAL FIRE's Ready, Set, Go framework: maintain defensible space year-round (Ready), pack and stay alert when conditions turn dangerous (Set), and evacuate immediately when told (Go). Wildland-adjacent homes also need an independent water source and a realistic plan for narrow forest roads that can jam during evacuation.

What fire safe rules for homes take effect in 2026?

The most significant pending 2026 change is California's ember-resistant Zone 0 rule, requiring the 5 feet nearest a structure to be free of combustible mulch, firewood, and wood fencing. The exact effective date has moved during rulemaking, so confirm current status directly on CAL FIRE's site before assuming a hard deadline.

Is Santa Barbara safe from fire?

No, not in any absolute sense. Santa Barbara County experienced the 280,000-acre Thomas Fire in 2017 and the subsequent Montecito debris flow that killed 23 people. Much of the surrounding foothill terrain is a CAL FIRE-designated Very High Fire Hazard Severity Zone, so defensible space rules apply there just as elsewhere.

How can we prevent forest fires as a community, more than individually?

Fire Safe Councils coordinate neighborhood-scale fuel breaks and chipper programs that individual homeowners can't fund alone, since fire doesn't respect property lines. Local ordinances on defensible space and burn permits help, but only if compliance is widespread, since one uncleared lot upwind can undermine an entire block's hardening effort.

What is PG&E's Wildfire Mitigation Plan and does it affect my defensible space requirement?

PG&E's Wildfire Mitigation Plan is a CPUC-filed document covering utility infrastructure work like undergrounding lines and PSPS shutoffs. It does not replace or reduce your personal defensible space obligation under California PRC 4291. Both apply independently, and insurers evaluate them separately.

How long do PG&E PSPS power shutoffs usually last?

Duration varies by event, but multi-day outages of 24 to 72 hours are common in severe wind events within high fire-threat districts, based on PG&E's own PSPS event reporting. Plan backup power for medical equipment and refrigeration accordingly, since restoration timing depends on post-event equipment inspections, more than weather clearing.

Sources

1. California Public Utilities Code Section 8386: State law requires electric utilities to submit wildfire mitigation plans for CPUC review
2. California Board of Forestry and Fire Protection, Ember-Resistant Zone rulemaking (AB 3074): 5-foot ember-resistant zone rule authorized under AB 3074 moving through rulemaking with compliance targeted around 2026
3. CAL FIRE, Fire Hazard Severity Zone Viewer: Fire hazard severity zone designations vary by parcel and are determined by the State Fire Marshal's office
4. California Public Resources Code Section 4291: Statutory text establishing the 100-foot defensible space clearance requirement
5. Cal Fire Ready for Wildfire: Creating and maintaining defensible space zones around a home reduces wildfire ignition risk and helps homes survive wildfire exposure
6. Cal Fire Ready for Wildfire: Home hardening measures, such as ember-resistant vents and fire-resistant roofing, reduce ignition risk during wildfires
7. California Office of the State Fire Marshal: The Office of the State Fire Marshal oversees community wildfire preparedness and mitigation programs, including new fire-safe building standards
8. County of Santa Barbara: Santa Barbara County provides wildfire preparedness resources given the region's ongoing wildfire risk
9. California Department of Insurance: Homeowners near high-risk wildfire zones should document their property and belongings for insurance claims purposes
10. National Fire Protection Association: NFPA provides guidance on preparing homes near wildland areas to reduce wildfire risk