California Policy Forms, Rating & Filing Transparency
How to trace an auto premium or policy term through the issued policy, filed forms, approved class plan, and Proposition 103 rate application—and how to use California’s public filing systems to test whether those records line up.
Current-law review: Sept. 11, 2026Proposition 103SERFF + CDI filing accessFour records—not one
1. Issued policy
The declarations, policy form, endorsements, exclusions and amendments actually forming the insured’s contract.
2. Filed form
The policy form or endorsement filed or approved for use in California. It is evidence of the insurer’s regulatory filing, not by itself proof of what a particular insured received.
3. Approved class plan
The insurer’s approved rules for applying mandatory and optional rating factors, territories, mileage, experience, vehicle characteristics, discounts and surcharges.
4. Rate application
The Proposition 103 filing through which the insurer seeks approval of rates and related changes, supported by actuarial and regulatory materials.
Proposition 103 prior approval
Insurance Code §1861.01 makes prior approval the organizing principle for California auto rates. Insurance Code §1861.05 prohibits rates that are excessive, inadequate, unfairly discriminatory or otherwise unlawful and provides for a complete rate application, public notice and review.
Insurance Code §1861.07 makes information supplied to the Commissioner under Proposition 103 Article 10 available for public inspection, providing the statutory basis for filing transparency.
Private-passenger auto rating factors
Insurance Code §1861.02 requires the three mandatory factors to be used in decreasing order of importance:
| Mandatory factor | Audit question |
|---|---|
| Driving safety record | What accidents, violations or other driving-record inputs were assigned, and under what approved rule? |
| Annual mileage | What mileage value and mileage methodology were used? |
| Years of driving experience | What experience value was assigned and how was it calculated? |
Additional optional factors may be used only within the Commissioner-approved statutory/regulatory framework. 10 CCR §§2632.4 and 2632.5 regulate authorized factors and class-plan use; §2632.11 governs class-plan submissions and changes.
Where to search
SERFF Filing Access — California
Use insurer name, filing type, line of business, form number, program, dates and SERFF tracking numbers to locate public rate/rule/form filings and attachments where available.
California DOI filing resources
Use CDI rate-filing and Virtual Viewing Room resources for California file numbers, public notices, dispositions, approvals, class-plan materials and related public records.
Citizen filing-audit workflow
Save declarations, policy booklet, endorsements, renewal notices, premium notices and rating worksheets for the relevant policy period.
Capture legal underwriting company, NAIC number if available, policy/program name, form numbers, endorsement numbers and edition dates.
Log filing number, filing type, filing date, company, program and all relevant public attachments.
Locate the CDI file number, public notice, proposed and approved rate change, disposition, implementation date and related class-plan materials.
Identify mandatory and optional factors, territory, mileage treatment, vehicle methodology, discounts, surcharges and other approved rating rules.
Compare issued form numbers, endorsement numbers, edition dates and wording to public filing records. Treat mismatches as research triggers.
Document the actual factor inputs assigned to the insured and map them through the approved rules as far as the public record permits.
Track amendments, approvals, withdrawals, effective dates and replacements so you know which filing was operative on the policy date.
Public notices, CDI correspondence, objections, amendments, hearing records and approvals may explain how the filing changed.
Use CA-PKG-003 and CA-PKG-004 for claim-handling and property-damage questions rather than collapsing distinct theories.
Controlled authorities
CA-PUB-015 — SERFF Filing Access — California.
CA-PUB-037 — Insurance Code §1861.01, prior approval.
CA-PUB-038 — Insurance Code §1861.02, automobile rating factors.
CA-PUB-039 — Insurance Code §1861.05, rate approval/public review.
CA-PUB-040 — Insurance Code §1861.07, public inspection.
CA-PUB-041–045 — Rating-factor, class-plan, complete-application and burden-of-proof regulations.
CA-PUB-046 — CDI Rate Filings / Virtual Viewing Room.
CA-PUB-047 — Ison v. Lara (Cal. Ct. App. 2026).
Frequently asked questions
If I find my policy form in SERFF, does that prove it is my policy?
No. Match the filed form number, edition date and endorsements to the contract actually issued to you.
Can an insurer use any factor it wants to price auto insurance?
No. California’s private-passenger auto framework uses mandatory statutory factors and only approved optional factors within the governing regulations and class plan.
Why look at older filings?
Because the filing that matters is the one operative for the policy or renewal period being reviewed. Filing history establishes when rates, rules and forms changed.
Transparency comes from reconciliation
The strongest audit ties the contract actually issued to the form actually filed, the class plan actually approved, the rate filing actually operative, and the factor inputs actually assigned to the insured.