SB 525 amends the California Insurance Code (Section 10091) to make explicit that "basic property insurance" offered through the California FAIR Plan includes manufactured homes and mobilehomes and that those dwellings must be treated under the same terms and conditions as other residential dwellings. The bill also restates several administrative definitions — inspection bureau, premiums written, insurer, and references to Health & Safety Code definitions for manufactured and mobile homes — and requires the association to use the specific earthquake policy set out in Section 10089 for any earthquake coverage component.
This matters because the FAIR Plan is the insurer-of-last-resort for properties the voluntary market declines. By bringing manufactured and mobile homes explicitly within the FAIR Plan’s scope and fixing the form of earthquake coverage and renewal obligations, the bill changes how risk is pooled and administered for a segment of California housing that historically faces market friction for property insurance.
That has immediate implications for manufactured-home owners, lenders, agents, and the insurers that jointly participate in the FAIR Plan’s apportionment mechanism.
At a Glance
What It Does
SB 525 revises the statutory definition of "basic property insurance" to include manufactured homes and mobilehomes and directs the FAIR Plan association to sell only the earthquake policy described in Section 10089 for earthquake coverage. It also updates definitions used for administration: inspection bureau, premiums written, insurer, and cross-references Health & Safety Code definitions.
Who It Affects
Manufactured- and mobile-home owners seeking property insurance, mortgagees and servicers that take those units as collateral, insurance agents who place coverage, the California FAIR Plan Association and its member insurers, and entities designated to perform property inspections.
Why It Matters
The change creates statutory parity between site-built residences and factory-built housing within the FAIR Plan, reducing legal uncertainty about availability of basic coverage for manufactured dwellings while shifting questions about pricing, underwriting, and administrative capacity onto the FAIR Plan and its members.
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What This Bill Actually Does
SB 525 focuses narrowly on definitions that determine who and what the California FAIR Plan must cover. The bill inserts manufactured homes and mobilehomes into the statutory meaning of "basic property insurance," and it directs that those dwellings be insured "under the same terms and conditions" as other residential dwellings sold through the FAIR Plan.
That language is procedural: it does not list coverages or limits, but it makes clear that parity — not a separate, bespoke product — is the baseline intent.
The bill also reaffirms the association’s required approach to earthquake coverage: when earthquake protection is part of basic property insurance, the FAIR Plan must sell the specific policy described in Section 10089 and must renew in-force policies with that same coverage while following the notice requirements already in statute. Separately, the bill spells out standard administrative definitions (inspection bureau, premiums written, insurer) that matter operationally because they determine how inspections are performed, how premium volume is measured for apportionment among member insurers, and who counts as an insurer for association membership and assessments.Finally, SB 525 ties the statutory meaning of "manufactured home" and "mobilehome" to the Health & Safety Code (Sections 18007 and 18008).
That cross-reference matters because many regulatory distinctions — anchoring standards, title and registration, park-vs-land ownership differences — flow from Housing Code definitions rather than insurance practice. The bill therefore aligns the FAIR Plan’s coverage scope with existing housing-law categories rather than inventing an independent insurance classification.
The Five Things You Need to Know
SB 525 amends Section 10091 to declare that "basic property insurance" in the FAIR Plan explicitly includes manufactured homes and mobilehomes.
The bill requires the FAIR Plan to sell only the earthquake policy specified in Section 10089 and to renew existing policies with that coverage while complying with existing notice rules.
The Commissioner retains authority to approve additional coverages and to approve or designate the inspection bureau or bureaus that inspect properties for FAIR Plan applications.
SB 525 restates the definition of "premiums written" to include gross direct premiums for basic property insurance and the basic premium components of multiperil policies, less standard adjustments.
The bill anchors the terms "manufactured home" and "mobilehome" to Health & Safety Code Sections 18007 and 18008 rather than creating new statutory meanings.
Section-by-Section Breakdown
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Association / FAIR Plan defined
This subsection restates who the ‘association’ is: the California FAIR Plan Association, described as a joint reinsurance association formed by insurers that write basic property insurance in California. Practically, this confirms that the FAIR Plan remains a cooperative mechanism among licensed insurers for apportioning basic property risk and that any obligations created by the bill apply to that existing statutory structure.
Broadening 'basic property insurance' to include manufactured and mobile homes
The bill modifies the statutory definition of basic property insurance to explicitly cover manufactured homes and mobilehomes and requires they be offered "under the same terms and conditions" as coverage for other residential dwellings. This is a drafting choice that signals parity rather than a carve-out; it compels the FAIR Plan to treat these unit types as eligible property rather than as excluded or subject to a specialized FAIR Plan product.
Earthquake coverage limited to Section 10089 policy; renewal rule
For earthquake coverage attached to basic property insurance, the association must sell only the policy form prescribed in Section 10089. In-force policies that already include earthquake coverage must be renewed with that specified coverage, and the association must comply with the existing statutory notice requirements. This effectively standardizes the earthquake component across FAIR Plan business and removes discretion to offer alternative earthquake forms under basic policies.
Inspection bureau, premiums written, insurer — operational definitions
The statute names an inspection bureau (or bureaus) as the entity designated by the association with commissioner approval to inspect properties and perform authorized duties; defines premiums written as gross direct premiums for property in California (with standard offsets); and reiterates who counts as an insurer (including reciprocals and interinsurance exchanges). These definitions determine how applications are vetted, how premium volume is calculated for apportionment among FAIR Plan members, and which entities share the financial responsibility for the association’s obligations.
Cross-reference to Health & Safety Code for housing terms
The bill does not create new technical definitions of manufactured home or mobilehome; instead it folds in the Health & Safety Code definitions (Sections 18007 and 18008). That linkage matters because many non-insurance rules — like HUD/California construction standards, registration, and titling issues — will inform underwriting and claims practices when the FAIR Plan covers factory-built housing.
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Explore Housing in Codify Search →Who Benefits and Who Bears the Cost
Every bill creates winners and losers. Here's who stands to gain and who bears the cost.
Who Benefits
- Owners of manufactured and mobile homes — They gain explicit access to the FAIR Plan as eligible properties, reducing the legal ambiguity that previously limited last-resort coverage options.
- Mortgage lenders and servicers with manufactured-home collateral — Clearer availability of FAIR Plan coverage protects property-secured loans from uninsured loss and may reduce regulatory friction for portfolio management.
- Insurance agents and brokers who place coverage for factory-built homes — Parity language expands placement options and reduces the need to treat these risks as categorically ineligible for FAIR Plan placement.
Who Bears the Cost
- Member insurers of the FAIR Plan association — The FAIR Plan’s apportionment mechanism spreads the financial burden of insuring newly included manufactured/mobile homes across member insurers, which may raise costs or assessment exposure.
- FAIR Plan administrators and designated inspection bureaus — Administrative workload will likely increase (inspections, underwriting nuances, renewal notices), requiring staffing, process changes, and possibly new inspection protocols specific to factory-built housing.
- Policyholders in the FAIR Plan pool — Depending on assessment and rate-setting practices, broader eligibility could affect premium allocation across the pool; non-manufactured-home policyholders could see indirect effects if losses or administrative costs rise.
Key Issues
The Core Tension
The central tension is between improving access to insurance for a vulnerable housing sector (parity and availability) and containing actuarial and administrative risk for the FAIR Plan and its member insurers (accurate pricing, inspection capacity, and equitable apportionment). The bill prioritizes access and legal clarity, but it leaves rate-setting, inspection standards, and detailed underwriting choices to the association and the Commissioner — a trade-off that shifts costs and implementation uncertainty onto the FAIR Plan apparatus.
Two implementation challenges stand out. First, the parity command — that manufactured and mobile homes receive coverage "under the same terms and conditions" as other dwellings — is legally crisp but actuarially blunt.
Manufactured homes typically present different loss profiles (construction type, anchoring, siting in parks, flood and wind vulnerability) that standard homeowner rates and forms do not reflect. The statute does not set out how the FAIR Plan must account for those risk differentials in rates or underwriting rules, leaving open whether the association will adopt separate rating factors within the common form or accept higher loss exposure without explicit rate mechanics.
Second, the earthquake provision fixes the form of earthquake coverage at Section 10089’s policy and requires renewals to include it, but it does not address whether that prescribed form adequately covers the unique earthquake vulnerabilities of factory-built housing. The bill also relies on existing inspection bureau authority without specifying inspection standards or training for manufactured-home inspections; inconsistent inspection practices could create underwriting and claims disputes.
Finally, tying the terms "manufactured home" and "mobilehome" to the Health & Safety Code reduces definitional disputes but imports external regulatory distinctions (e.g., title, HUD compliance) into insurance practice; resolving those cross-regulatory mismatches will require agency guidance or administrative rulemaking.
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