- Automobile Insurance and Homeowners' Insurance are tied as the largest domains at 16% each.
- Fair Claims Settlement Practices Regulations account for 11% and are tested separately from general Insurance Regulation (9%).
- Commercial Policies (15%) and Workers' Compensation (8%) push commercial-line topics to nearly a quarter of the exam.
- The 100-question exam requires 70% correct in 2 hours 30 minutes, closed-book, at PSI centers or by remote proctoring.
Why the 12 Domains Matter
Every question on the California Insurance Adjuster Exam (CAIA) is pulled from one of twelve content areas defined by the California Department of Insurance and delivered through PSI Services LLC. These aren't loose "topics to review" - they're the literal blueprint examiners use to build the 100-question exam you'll sit for. Understanding how much weight each domain carries lets you allocate study hours proportionally instead of spreading yourself thin across material that barely shows up on test day.
This guide breaks down all 12 domains as they stand under the objectives effective January 1, 2026, explains what each one actually tests, and shows how the weighting should shape your prep. If you haven't yet reviewed the baseline mechanics - fees, eligibility, and scoring - the CAIA Requirements guide and CAIA Passing Score breakdown are useful companion reads before you dive into domain-level study.
Domain Weighting Breakdown
Here's the full list of domains with their official weight on the exam:
| Domain | Weight |
|---|---|
| 1. Insurance Regulation | 9% |
| 2. Insurance Basics | 8% |
| 3. Automobile Insurance | 16% |
| 4. Homeowners' Insurance | 16% |
| 5. Dwelling Coverage | 5% |
| 6. Commercial Policies | 15% |
| 7. Business Owners Policy (BOP) | 5% |
| 8. Workers' Compensation Insurance | 8% |
| 9. Ocean Marine Insurance | 3% |
| 10. Surety and Fidelity | 2% |
| 11. Other Coverages and Options | 2% |
| 12. Fair Claims Settlement Practices Regulations | 11% |
Notice how the weighting clusters into three tiers: two "anchor" domains at 16%, three "heavy" domains between 8% and 15%, and seven "lighter" domains ranging from 2% to 9%. That tiering is the backbone of an efficient study plan, and it's the same logic we use throughout the CAIA Study Guide.
The Big Two: Auto and Homeowners
Automobile Insurance and Homeowners' Insurance are the joint-largest domains on the exam, each worth 16%. Together they represent nearly a third of your score, which means weak spots here have an outsized effect on whether you clear the 70% passing threshold.
Domain 3: Automobile Insurance
Candidates need to move comfortably between personal auto policy structure and the claims mechanics adjusters apply in the field.
- Liability, collision, comprehensive, and uninsured/underinsured motorist coverage
- Medical payments coverage and its interaction with liability limits
- Exclusions, endorsements, and how they alter standard auto coverage
- Total loss valuation and settlement approaches for vehicle claims
Domain 4: Homeowners' Insurance
This domain tests the structure of the HO policy forms and how perils, exclusions, and endorsements interact in a claim scenario.
- HO policy forms and the difference between named-peril and open-peril coverage
- Dwelling, other structures, personal property, and loss-of-use coverages
- Common exclusions (flood, earth movement, neglect) and how endorsements address gaps
- Additional living expense and personal liability provisions
Because these two domains overlap conceptually with Domain 5 (Dwelling Coverage), it's worth studying them as a connected block rather than in isolation. Dwelling Coverage at 5% often tests standalone dwelling fire policies and the DP forms used for non-owner-occupied or seasonal properties - material that's easy to confuse with homeowners' forms if you study them separately.
Key Takeaway
Treat Automobile Insurance and Homeowners' Insurance as your two highest-priority domains. Master policy structure first, then layer in claims-handling nuance - that's where most exam questions live.
Commercial Policies and BOP
Commercial lines make up a substantial slice of the exam once you add Domain 6 (Commercial Policies, 15%), Domain 7 (Business Owners Policy, 5%), and Domain 8 (Workers' Compensation Insurance, 8%). That's 28% of the exam tied to business-related coverage - a category candidates coming from a purely personal-lines background sometimes underestimate.
Domain 6: Commercial Policies
Covers the building blocks of commercial property and liability coverage that adjusters encounter on business claims.
- Commercial property forms and causes-of-loss coverage options
- Commercial general liability structure and occurrence vs. claims-made triggers
- Business interruption and extra expense coverage
- Common commercial endorsements and exclusions
Domain 7: Business Owners Policy (BOP)
Tests how a BOP bundles property and liability coverage for smaller commercial risks, and where it differs from a standalone commercial package.
- Eligibility criteria for BOP-qualifying businesses
- Standard coverages bundled into a BOP versus optional endorsements
- How BOP claims are adjusted differently than monoline commercial claims
Domain 8: Workers' Compensation Insurance
Focuses on the statutory framework and claims process unique to workers' comp, which operates differently than most first-party or liability lines.
- Employer obligations and statutory benefit structure
- Types of benefits: medical, temporary disability, permanent disability, death benefits
- Claims investigation and reporting requirements specific to workplace injuries
If you're weighing whether the commercial-lines weight on this exam makes the credential worthwhile for your career direction, the analysis in Is the CAIA Certification Worth It? and the field breakdown in CAIA Jobs both address which employers hire specifically for candidates strong in commercial claims handling.
Regulation and Fair Claims Settlement Practices
Two domains test the legal and procedural side of adjusting rather than coverage mechanics: Domain 1 (Insurance Regulation, 9%) and Domain 12 (Fair Claims Settlement Practices Regulations, 11%). Combined, that's 20% of the exam - nearly as much as either of the "Big Two" coverage domains - and it's frequently underprepared for because it feels less concrete than memorizing policy forms.
Domain 1: Insurance Regulation
Covers the licensing and regulatory framework adjusters operate within in California.
- California Department of Insurance authority and licensing structure
- License renewal requirements, including continuing education obligations
- Bonding requirements and unfair practices statutes
Domain 12: Fair Claims Settlement Practices Regulations
This domain tests the specific regulatory standards governing how claims must be investigated, communicated, and settled in California - material that also appears in mandatory annual continuing training for licensees.
- Timeframes for acknowledging, investigating, and accepting or denying claims
- Required written communications to claimants
- Prohibited claims-handling practices and documentation standards
This is a good moment to note that Fair Claims Settlement Practices training isn't just an exam domain - licensees must complete it annually by September 1 as part of maintaining the license, alongside 24 continuing-education hours (including 3 ethics hours) every two-year renewal cycle. In other words, mastering this domain now pays off well beyond exam day.
The Small But Testable Domains
Five domains carry lighter individual weight but still show up reliably on the exam: Domain 2 (Insurance Basics, 8%), Domain 5 (Dwelling Coverage, 5%), Domain 9 (Ocean Marine Insurance, 3%), Domain 10 (Surety and Fidelity, 2%), and Domain 11 (Other Coverages and Options, 2%).
- Insurance Basics (8%): Foundational concepts - insurable interest, indemnity, policy structure, and the terminology used throughout every other domain. Worth mastering early since it underpins the rest of the exam.
- Dwelling Coverage (5%): Standalone dwelling fire (DP) policies distinct from HO forms, often used for rental or seasonal properties.
- Ocean Marine Insurance (3%): A niche but historically tested area covering cargo, hull, and marine liability concepts unique to California's regulatory framework.
- Surety and Fidelity (2%): Bond mechanics - the distinction between surety bonds (three-party guarantee) and fidelity bonds (employee dishonesty coverage).
- Other Coverages and Options (2%): A catch-all for miscellaneous endorsements and specialty coverages not captured in the major domains.
Individually these domains won't make or break your score, but collectively they represent 20% of the exam - roughly the same weight as Insurance Regulation and Fair Claims Settlement Practices combined. Skipping them entirely is a common mistake candidates make when they assume "small percentage" means "safe to ignore."
Mapping a Study Schedule to the Domains
Rather than studying domains in numerical order, sequence your prep by weight and conceptual overlap. Group Automobile and Homeowners' Insurance together, pair Commercial Policies with BOP and Workers' Compensation, and save the lighter specialty domains for a dedicated review pass near the end.
Foundations
- Insurance Basics (Domain 2)
- Insurance Regulation (Domain 1)
Property & Auto Core
- Automobile Insurance (Domain 3)
- Homeowners' Insurance (Domain 4)
- Dwelling Coverage (Domain 5)
Commercial Lines
- Commercial Policies (Domain 6)
- Business Owners Policy (Domain 7)
- Workers' Compensation (Domain 8)
Specialty & Claims Practices
- Ocean Marine (Domain 9), Surety and Fidelity (Domain 10), Other Coverages (Domain 11)
- Fair Claims Settlement Practices Regulations (Domain 12)
- Full-length timed practice at 100 questions / 2 hours 30 minutes
This structure isn't a generic template - it's built directly around the exact 12-domain weighting above. For a deeper walkthrough of how to pace daily review sessions within each week, see the CAIA Study Guide. And if you're still deciding how much runway to give yourself, How Hard Is the CAIA Exam? covers difficulty by domain in more detail.
Exam Format and Registration Mechanics
Knowing the domains is only half the picture - how those domains are tested matters just as much. The CAIA is a closed-book, computer-based exam with 100 scored questions, a 2-hour-30-minute time limit, and a 70% passing score. It's delivered through PSI Services LLC, either at a physical test center or via remote proctoring.
- Base exam fee: $79
- Convenience fee: $43 additional for test-center or remote-proctored appointments
- Eligibility: Minimum age 18, plus two years or 4,000 compensated hours of certified adjusting experience, fingerprinting, a 2-by-2 passport photo, and a $2,000 bond (waived if covered by a qualifying firm bond)
- License term: Two years, renewable with 24 continuing-education hours (including 3 ethics hours) and annual Fair Claims Settlement Practices training completed by September 1
For the complete fee and cost breakdown, including bond and renewal costs over time, see CAIA Certification Cost 2026. If you need the exact eligibility documentation checklist, the CAIA Requirements guide walks through it step by step, and CAIA Exam Dates 2026 covers scheduling windows at PSI.
Before test day, it's worth doing a final pass through a condensed reference - the CAIA Cheat Sheet consolidates the must-know facts across all 12 domains into a single review page, and running full practice sets on our practice test platform is the most reliable way to confirm you can apply domain knowledge under timed conditions.
Frequently Asked Questions
Start with Insurance Basics (Domain 2), since its terminology and concepts underpin every other domain, including the heavily weighted Automobile and Homeowners' Insurance sections.
Yes. The published weights (from 2% up to 16%) represent the proportion of the 100-question exam drawn from each domain under the objectives effective January 1, 2026.
No. Domain 12 is tested on the initial exam, but the same subject matter also appears in the annual Fair Claims Settlement Practices training required by September 1 to maintain your license.
Both are listed as the joint-largest domains at 16% each, reflecting how frequently adjusters handle personal auto and homeowners' claims in practice.
Not entirely. Individually they're worth 2-3% each, but combined with Dwelling Coverage and Other Coverages, the smaller domains still account for a meaningful share of the 100 scored questions.