Washington’s minimum standards for how insurers handle claims changed on October 18, 2026 — not at the next renewal, not after a grace period. The amendments to the unfair claims settlement practices regulation, WAC 284-30-300 through 284-30-395 (Insurance Commissioner Matter R 2025-05, filed as WSR 26-17-089), are in force now, and they rewrite the first days of every Washington claim your clients will file from here on: what the insurer owes, how fast, and what your client can demand in writing.
Most of the rule is a set of clocks, and the coverage decision is the one that now starts earlier. Acknowledgment (WAC 284-30-360) and the 30-day investigation (WAC 284-30-370) already ran from notification of claim. The old regulation measured the duty to affirm or deny coverage, and the first-party accept-or-deny notice, from completed proof of loss. The new text measures both from notification of the claim — the moment the loss is reported. Here is the day-one briefing, in the order a claim actually unfolds.
One violation is now enough
Start with the change that gives all the others their teeth. WAC 284-30-300 used to deem the standards violated only “with such frequency as to indicate a general business practice.” The amendments strike that phrase. A single failure to meet a standard in this chapter is now, by itself, an unfair claims settlement practice — no pattern required, no second offense needed.
The commissioner’s filing is candid about why. Automobile and homeowners claim counts in the state remained consistent over the past six years while complaints and Insurance Fair Conduct Act notices increased, and the filing names the industry’s shift away from in-person, on-site loss examination toward artificial intelligence and photo-based adjusting as part of the backdrop. The rule is written for the claims process as it now runs — which is exactly why so much of it is about what a file, a database, or a photograph can and cannot substitute for.
Day one: the clocks start at notification
Three duties now run from the notification of claim, a term the rule defines broadly — any notification that reasonably apprises the insurer of the facts, and notice given to the insurer’s agent counts as notice to the insurer (WAC 284-30-320(14), 284-30-360(1)(c)). For a broker, that means the clock may already be running from your own call or email reporting the loss.
Within 10 business days after notification of claim under an individual insurance policy, or 15 business days for a claim under a group insurance contract, the insurer must acknowledge the claim (WAC 284-30-360(1)). Within 30 calendar days, the investigation must be complete unless it cannot reasonably be finished in that time — in which case the insurer owes the claimant written reasons and updated notices every 30 days after (WAC 284-30-370). Within the same 30 calendar days the insurer must notify the first-party claimant whether the claim is accepted or denied, or give all of the reasons more time is needed and, if still unresolved, update the claimant every 30 calendar days (WAC 284-30-380(1), (3)). The 30-day investigation rule and the 30-day accept-or-deny rule do not apply to medical professional liability claims (WAC 284-30-370(2); WAC 284-30-380(1) and (3)). WAC 284-30-330(5) states the underlying duty plainly: failing to affirm or deny coverage within a reasonable time after receiving a notification of claim is an unfair practice. The trigger that used to start the accept-or-deny notice and the duty to affirm or deny coverage — fully completed proof of loss documentation — has been deleted from WAC 284-30-380(1) and WAC 284-30-330(5). It was not the trigger for acknowledgment or for the 30-day investigation. Deleting that regulatory trigger does not cancel a policy proof-of-loss condition. When the carrier demands a sworn proof, ISO-style forms still require it, often within 60 days of the written demand — see Property Claim Filing and Documentation: From First Notice of Loss to Settlement.
The practical translation for your desk: “we’re still waiting on paperwork” no longer stops a clock that the rule started at first notice. When a client reports a loss, the dates worth calendaring are the day of notification, day 10 for acknowledgment on an individual policy (day 15 on a group contract), and day 30 for a completed investigation and either an accept-or-deny answer or a written explanation of why more time is needed. Do not put a medical professional liability claim on that 30-day calendar.
The mitigation scope: approve it in five business days, or itemize the no
Where the policy requires the insured to protect property from further damage — the standard mitigation duty in a property form — WAC 284-30-330(20) now gives the insurer five business days after receiving the insured’s scope of mitigation to approve it, or to provide the insured with an approved scope of its own. Silence is not a third option.
And a rejection is not a phone call. Under WAC 284-30-330(21), if the insurer rejects the scope, it must disclose the reasons the scope fails to meet technical or industry standards, including a dollar-amount itemization of the disapproved items. For a broker managing a commercial property loss, this is the single most useful new lever in the rule: the mitigation conversation — usually the first scope fight of the claim, fought while the building is still wet — now produces a written, itemized position from the carrier within five business days, or an approval. Coach clients to submit the scope in writing, with the date on it, from day one.
The claim file belongs to the client who asks
WAC 284-30-340(2) gives insureds the right, from time to time and at reasonable intervals, to request any portion of the first-party claim file: written reports, claim notes, estimates, bids, plans, measurements, drawings, engineer reports, contractor reports, statements, photographs, video recordings. The insurer has 15 business days from receipt of the request to produce what was asked for. It may redact or withhold material that is legally privileged, contains third-party financial information, or is a specific investigative record whose nondisclosure is essential to a reasonable investigation of alleged criminal activity, and it may withhold a record only when the entire document would otherwise be redacted — but it must tell the insured that documents were withheld or redacted, and if it decides a request is unreasonable, it owes a written explanation of why.
Brokers have informally chased adjuster files for clients for years, on goodwill. In Washington it is now a stated right with a deadline. Requesting the file early — before positions harden — is the move; the engineer’s report your client is arguing against is a document the client can simply ask for. When a claim later turns into a dispute, the remedies landscape is the one mapped in our guide to disputed claims, public adjusters, appraisal, and bad-faith remedies — and note that the same amendments bar an insurer from treating a claimant differently for being represented by a public adjuster (WAC 284-30-330(14)).
A number built only on software is not an investigation
The rule’s definition of “investigation” now specifies what a reasonable one assesses: whether the loss is covered, the scope and value of the loss, and the reasonableness of the costs to mitigate, treat, repair, replace, or recover it (WAC 284-30-320(11)). WAC 284-30-330(4) then draws the line your clients will quote: denying or refusing to pay a claim without a reasonable investigation is an unfair practice, and “[a] reasonable investigation may not rely solely on the use of a database, which includes, but is not limited to, estimating software and benchmarks gathered from one or multiple databases.”
Two companion provisions close the loop. The insurer is responsible for the accuracy of its evaluations — including evaluations made on its behalf — of the amounts owed under the policy (WAC 284-30-380(7)). And where the insurer used a database, survey, estimating software, or benchmarks for material pricing or labor rates, the claimant may request — and the insurer must provide — the date the data was collected, where it was collected from, and which businesses provided the cost data (WAC 284-30-380(8)). An out-of-area labor rate is no longer a take-it-or-leave-it output; its provenance is disclosable on request. That request belongs in the first supplement conversation, not the last.
Auto: photo-only is no longer a condition of coverage
For clients with fleets, WAC 284-30-390 writes the same principle into motor vehicle claims. An insurer may not require a claimant to agree to only photo-based evaluation of damage as a condition of coverage (WAC 284-30-390(1)(a)(i)). At notification of claim, the insurer must disclose the claimant’s ability to request an in-person inspection — and if a virtual inspection produces a disagreement on the amount of loss, the insurer must accept a request for an in-person inspection and conduct it within five business days or another agreed time between the claimant and the insurer (WAC 284-30-390(1)(a)(iii), (1)(b)(i)). If photographs cannot document the damage, the insurer must make reasonable efforts to request additional documentation before rejecting it.
What to tell the client before the next loss
None of this requires a claim to use. It requires a conversation at placement and at renewal, while there is time to have it calmly: report every loss immediately and in writing, because notification starts the clocks — the notice discipline in our first-notice-of-loss guide now carries deadlines, not just good practice. Submit mitigation scopes in writing, dated, from the first day. Calendar day 10 on an individual policy (day 15 on a group contract) and day 30, and treat day 30 as the date a decision or a written reason for more time is due. Ask for the claim file early, and ask where any database number came from. And keep the whole exchange in writing: the rule runs on documents, and the side with the documents sets the tempo.
On the other side of the same claim, the restorer writing that mitigation scope is working to the same five-business-day clock. Restoration Intel’s companion piece — Five Business Days: Writing a Mitigation Scope Washington Insurers Must Answer — covers what the new rule demands from the scope itself.