What California Property Managers Must Document After a Disaster (SB 610 Guide)

What Does SB 610 Require Property Managers to Document?

SB 610 requires California landlords to remediate toxic ash, smoke residue, mold, water damage, and debris after a declared emergency, then provide tenants a written Notice of Completion of Remediation Work before the unit can be re-occupied or rent obligations resume.

That's the short version. The longer version is that this law created an entire documentation chain most PMs aren't building — and without it, your remediation might as well not have happened.

The Documentation Chain SB 610 Creates

Before SB 610, you could remediate a unit, tell the tenant it was done, and move on. Now you need a paper trail that proves five things:

1. The disaster triggered your obligation.

You need a record connecting the declared emergency to your property's damage. Keep the governor's proclamation or local emergency declaration, plus your initial inspection record showing what damage existed. I photograph the property within 24 hours of any declared emergency affecting my zip codes, even if damage isn't obvious yet. Ash and smoke residue don't always show up immediately.

2. You assessed the scope correctly.

A walk-through isn't enough. You need a documented assessment that identifies specific contaminants: toxic ash, smoke particulates, mold, water intrusion, structural debris. If you're dealing with wildfire ash, that's not regular dust. It contains heavy metals, asbestos from older structures, and chemical compounds from burned plastics. Your assessment should note what type of contamination you're addressing.

I hire an industrial hygienist for anything beyond surface-level debris. Costs $800-1,500 for a standard assessment of a 2-3 unit affected area. Non-negotiable. When the tenant's attorney asks "how did you determine what needed remediation?" your answer is either a professional assessment report or silence. Silence loses cases.

3. The remediation was performed by qualified contractors.

SB 610 doesn't specify contractor licensing requirements beyond existing law, but courts look at whether your remediation vendor was qualified for the specific contaminant. A regular cleaning crew can handle debris removal. Mold remediation requires a licensed remediator in California. Toxic ash with asbestos content requires DOSH-certified abatement. Document who did what and their qualifications for each scope of work.

4. You have before-and-after evidence.

This is where I see PMs fail most often. They hire the contractor, the contractor does the work, and nobody captures the state of the unit before remediation started. You need:

• Pre-remediation photos showing the contamination (timestamped, GPS-tagged)

• Progress documentation if remediation takes more than one day

• Post-remediation photos showing the completed work

• Clearance testing results where applicable (air quality for mold, surface sampling for ash)

The before photos are the hardest to get because you're scrambling during a disaster. Build this into your emergency response protocol: before any cleanup starts, your coordinator photographs every affected area. Takes 15 minutes. Saves you months of disputes.

5. You delivered the Notice of Completion.

SB 610 requires a written notice to the tenant confirming remediation is complete. This isn't a text message or a verbal "we're done." It's a formal written notice that should include:

• Date remediation was completed

• Scope of work performed

• Contractor information

• Any clearance testing results

• Statement that the unit is fit for re-occupancy

Deliver it the same way you'd deliver any legal notice. The same proof-of-service standards apply to every other notice you serve, and they apply here too. Certified mail, personal service with signed acknowledgment, or portal delivery with timestamp confirmation.

What Records to Keep and For How Long

California doesn't specify a retention period unique to SB 610, but I keep disaster remediation files for at least seven years. My reasoning: personal injury claims have a two-year statute of limitations in California, but latent injuries (respiratory conditions from toxic ash exposure, for instance) can surface years later. The discovery rule extends the filing deadline to when the plaintiff knew or should've known about the injury.

Your remediation file should contain:

• Emergency declaration documentation

• Initial property inspection record (within 24-48 hours)

• Industrial hygienist assessment (if applicable)

• Contractor scope of work agreements

• Contractor licensing and qualification records

• Daily remediation progress logs

• Pre-remediation, during, and post-remediation photos

• Clearance testing results

• Itemized remediation invoices

• Notice of Completion of Remediation Work (with proof of delivery)

• Tenant communication log throughout the process

That's 11 document types per affected unit. For the building I managed through the January fires with three affected units, that was 33 individual documentation items. Sounds like a lot until you consider the alternative: a tenant claiming you never properly remediated, and you having nothing to show except a contractor invoice.

Where PMs Get This Wrong

Treating it like a normal maintenance event. Disaster remediation isn't a work order you close and forget. It's a compliance event with legal obligations attached. Your regular work order system might not capture the assessment-to-completion chain SB 610 requires. Build a separate workflow or tag disaster-related work orders so they follow the full documentation protocol.

Skipping the assessment phase. I've watched PMs jump straight to "hire a cleaning crew" after a fire without documenting what contamination existed first. If a tenant later claims respiratory issues from toxic ash, you can't prove you addressed the specific hazard because you never documented identifying it.

Relying on the contractor's records. Your contractor keeps their own files. Those aren't yours. If that contractor closes their business, loses records, or refuses to cooperate with discovery in a lawsuit, you're left with nothing. I lost access to three years of remediation records in 2024 when a mold vendor shut down overnight. Never again. Keep your own copies of everything — assessment reports, scope agreements, completion reports, clearance testing.

Missing the 24-48 hour window for initial documentation. After a disaster, everything moves fast. Emergency responders, insurance adjusters, concerned tenants calling every 20 minutes. But the first 48 hours are when contamination is freshest and most visible. Once you start cleaning, the "before" state is gone forever. My rule: nothing gets touched until someone with a camera documents it. Skip this and you've destroyed your own evidence.

How This Connects to Your Existing Systems

If you're already running a maintenance compliance program, SB 610 documentation slots into your existing framework. The timestamps, photos, and completion evidence you're already capturing for regular work orders apply here. You're adding the assessment layer on top and the formal Notice of Completion at the end.

The difference is urgency. Regular maintenance documentation happens over days or weeks. Disaster documentation has a compressed timeline. Contamination spreads. Mold develops within 24-48 hours of water intrusion. Toxic ash settles deeper into surfaces the longer it sits. Your documentation system needs to move as fast as your remediation crew.

For my portfolio, I've built a disaster response checklist that my coordinators can grab within an hour of an emergency declaration. It walks them through every photo, every log entry, every form they need before anyone starts cleaning. Took about two hours to create. It's been used three times in the last 18 months.

The Rent Obligation Question

A lot of PMs miss this: under SB 610, a tenant's rent obligation is affected during the remediation period. If the unit is uninhabitable due to disaster damage, rent doesn't accrue until you deliver that Notice of Completion. This ties directly into the implied warranty of habitability obligation every California landlord carries. Your documentation of the remediation timeline directly determines when rent resumes.

Sloppy documentation costs you money on both ends. Potential liability from inadequate remediation proof on one side, lost rent from an unclear completion timeline on the other. One of my buildings lost $4,700 in rent over six weeks because we couldn't pinpoint when remediation finished. Document the completion date precisely, deliver the notice promptly, and keep proof of delivery. The day you deliver that notice is the day rent obligations restart.

The Insurance Documentation Overlap

Your insurance carrier wants most of the same documentation SB 610 requires: initial damage assessment, scope of work, contractor invoices, completion evidence. But the carrier's documentation serves a different purpose (claim reimbursement) while SB 610's serves a compliance purpose (tenant protection). Don't assume your insurance claim file equals your SB 610 compliance file.

The Notice of Completion, tenant communications, and proof-of-service records exist in your compliance file but not your insurance file. Keep them separate or flag the SB 610-specific documents clearly so you can pull the full compliance chain without digging through claim paperwork.