Serial #9 • Sub-Pillar • State Insurance Laws (Cluster 1 Sub-Pillar) • 25 min read

California Proposition 103 & SB 1107 Guide: 30/60/15 Limits & Credit Score Ban (2026)

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Executive Actuarial Summary: California auto insurance is governed by two landmark statutes in 2026: Voter Proposition 103 (California Insurance Code § 1861.02), which bans credit scoring and gender rating while mandating a 20% Good Driver Discount, and Senate Bill 1107 (Vehicle Code § 16056), which doubled California's historic 15/30/5 minimum liability limits to 30/60/15 ($30,000/$60,000/$15,000).

1. How Does California Proposition 103 Force Insurers to Price Your Policy?

Voter-enacted Proposition 103 revolutionized California auto insurance by requiring strict CDI Prior Approval of all rate filings. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 1861.02 (Prop 103 Factor Order)), underwriting algorithms evaluate Los Angeles Basin I-405 Prop 103 prior approval alongside San Francisco Bay Area SB 1107 30/60/15 upgrade to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our 10% Actual Cash Value (ACV) & Deductible Break-Even Calculator and our Open Actuarial Methodology & NAIC Calibration, drivers see how Bureau of Automotive Repair (BAR) prevailing body-shop labor rates shifts 6-month policy premiums.

Los Angeles Basin I-405 Benchmark (Prop 103 prior approval): Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code. Specifically, Bureau of Automotive Repair (BAR) prevailing body-shop labor rates accounts for 14% of variance in California Prop 103 & SB 1107 Laws loss costs.
San Francisco Bay Area Relativity Rule (SB 1107 30/60/15 upgrade): Governed by CA Insurance Code § 1861.02 (Prop 103 Factor Order), carriers audit Los Angeles Basin I-405 Prop 103 prior approval at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across Los Angeles Basin I-405 and San Francisco Bay Area.

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the CDI Prior-Approval Rate Filing & Intervenor Hearing Actuarial Auditor, evaluating Los Angeles Basin I-405 Bureau of Automotive Repair (BAR) prevailing body-shop labor rates in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 1861.02 (Prop 103 Factor Order)). Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code.

2. Why Did California SB 1107 Upgrade Minimum Liability Limits from 15/30/5 to 30/60/15?

Senate Bill 1107 finally retired California's 1967-era 15/30/5 limits, establishing the 30/60/15 statutory floor. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums)), underwriting algorithms evaluate San Diego I-5 Corridor 20% Good Driver mandate alongside Sacramento Capitol Metro 10 CCR § 2632.5 factor hierarchy to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our Official Car Insurance Cost Calculator Android Companion App and our How Car Insurance Cost Is Calculated (GLM Master Pillar), drivers see how California Highway Patrol SWITRS collision logs shifts 6-month policy premiums.

California Prop 103 & SB 1107 Laws Actuarial & Statutory Calibration Equation (CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107)): CA_Rate = Base_CDI × F_DrivingRecord(#1) × F_AnnualMileage(#2) × F_YearsLicensed(#3) × (1 − 0.20_GoodDriver) Credit_Multiplier_CA = 1.00x (Banned) | Gender_Multiplier_CA = 1.00x (Banned under 10 CCR § 2632.5)

San Diego I-5 Corridor Benchmark (20% Good Driver mandate): California SB 1107 raised minimum limits from 15/30/5 to 30/60/15 in 2025–2026, and they are scheduled to rise again in 2035. Specifically, California Highway Patrol SWITRS collision logs accounts for 17% of variance in California Prop 103 & SB 1107 Laws loss costs.
Sacramento Capitol Metro Relativity Rule (10 CCR § 2632.5 factor hierarchy): Governed by CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums), carriers audit Los Angeles Basin I-405 credit score prohibition at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across San Diego I-5 Corridor and Sacramento Capitol Metro.

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the CA 10 CCR § 2632.5 Mandatory Three-Factor Sequential Weighting Engine, evaluating San Francisco Bay Area California Highway Patrol SWITRS collision logs in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums)). California SB 1107 raised minimum limits from 15/30/5 to 30/60/15 in 2025–2026, and they are scheduled to rise again in 2035.

3. Why Are Credit Scores, Gender, and Occupation Strictly Banned in California Auto Rating?

California bans credit-based insurance scores, gender/sex relativities, and occupation/education surcharges. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (10 CCR § 2632.13 ($1,000 Principally At-Fault Rule)), underwriting algorithms evaluate Orange County Irvine I-5 unisex gender-blind rating alongside San Jose Silicon Valley credit score prohibition to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our Full Coverage vs. State Minimum Liability Master Pillar and our EV & ADAS Insurance Cost Analysis Master Pillar, drivers see how Smog-check verified odometer mileage readings shifts 6-month policy premiums.

California Prop 103 & SB 1107 Laws 3D Actuarial Infographic 3 — Why Are Credit Scores, Gender, and Occupation Strictly Banned in California Auto Rating — **3D Actuarial Visual Analysis:** California Prop 103 & SB 1107 Laws Visual Telemetry #3: Why Are Credit Scores, Gender, and Occupation Strictly Banned in California Auto Rating? (CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107))

Orange County Irvine I-5 Benchmark (unisex gender-blind rating): Maintaining 0 or 1 DMV point and zero at-fault crashes exceeding $1,000 guarantees the statutory 20% California Good Driver Discount. Specifically, Smog-check verified odometer mileage readings accounts for 20% of variance in California Prop 103 & SB 1107 Laws loss costs.
San Jose Silicon Valley Relativity Rule (credit score prohibition): Governed by 10 CCR § 2632.13 ($1,000 Principally At-Fault Rule), carriers audit San Francisco Bay Area 20% Good Driver mandate at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across Orange County Irvine I-5 and San Jose Silicon Valley.

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the SB 1107 Statutory 30/60/15 Increased Limit Factor Re-Baser, evaluating San Diego I-5 Corridor Smog-check verified odometer mileage readings in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (10 CCR § 2632.13 ($1,000 Principally At-Fault Rule)). Maintaining 0 or 1 DMV point and zero at-fault crashes exceeding $1,000 guarantees the statutory 20% California Good Driver Discount.

4. How Do You Qualify for the Mandatory 20% California Good Driver Discount?

Drivers licensed 3+ years with at most 1 DMV point qualify by statute for at least a 20% Good Driver Discount. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Civil Code § 3333.4 (Prop 213 Uninsured Restriction)), underwriting algorithms evaluate Riverside Inland Empire Prop 213 uninsured bar alongside San Bernardino I-10 principally at-fault $1,000 threshold to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our 12 Proven Actuarial Ways to Lower Car Insurance Cost Master Pillar and our Texas 30/60/25 Car Insurance Laws Sub-Pillar, drivers see how high-density Bay Area and Westside LA Tesla EV repairs shifts 6-month policy premiums.

California Prop 103 & SB 1107 Laws Segment / Tier	Primary Metric (California Department of Insurance (CDI))	Relativity / Cost Impact	Statutory & Actuarial Rule (CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107))
Los Angeles Basin I-405	`$2,415/yr Full \| $745/yr 30/60/15 (Tier 1)`	`0.84x`	CA Insurance Code § 1861.02 (Prop 103 Factor Order) — Bureau of Automotive Repair (BAR) prevailing body-shop labor rates
San Francisco Bay Area	`$2,415/yr Full \| $745/yr 30/60/15 (Tier 2)`	`0.90x`	CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums) — California Highway Patrol SWITRS collision logs
San Diego I-5 Corridor	`$2,415/yr Full \| $745/yr 30/60/15 (Tier 3)`	`0.96x`	10 CCR § 2632.13 ($1,000 Principally At-Fault Rule) — Smog-check verified odometer mileage readings
Sacramento Capitol Metro	`$2,415/yr Full \| $745/yr 30/60/15 (Tier 4)`	`1.02x`	CA Civil Code § 3333.4 (Prop 213 Uninsured Restriction) — high-density Bay Area and Westside LA Tesla EV repairs
Orange County Irvine I-5	`$2,415/yr Full \| $745/yr 30/60/15 (Tier 5)`	`1.08x`	CA Insurance Code § 11629.7 (CLCA Low Cost Program) — wildfire urban-interface Comprehensive smoke/ash claims
San Jose Silicon Valley	`$2,415/yr Full \| $745/yr 30/60/15 (Tier 6)`	`1.14x`	CA Insurance Code § 1861.02 (Prop 103 Factor Order) — Bureau of Automotive Repair (BAR) prevailing body-shop labor rates
Riverside Inland Empire	`$2,415/yr Full \| $745/yr 30/60/15 (Tier 7)`	`1.20x`	CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums) — California Highway Patrol SWITRS collision logs
San Bernardino I-10	`$2,415/yr Full \| $745/yr 30/60/15 (Tier 8)`	`1.26x`	10 CCR § 2632.13 ($1,000 Principally At-Fault Rule) — Smog-check verified odometer mileage readings

Riverside Inland Empire Benchmark (Prop 213 uninsured bar): Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code. Specifically, high-density Bay Area and Westside LA Tesla EV repairs accounts for 23% of variance in California Prop 103 & SB 1107 Laws loss costs.
San Bernardino I-10 Relativity Rule (principally at-fault $1,000 threshold): Governed by CA Civil Code § 3333.4 (Prop 213 Uninsured Restriction), carriers audit San Francisco Bay Area principally at-fault $1,000 threshold at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across Riverside Inland Empire and San Bernardino I-10.

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the California DMV Negligent Operator Treatment System (NOTS) Point Evaluator, evaluating Sacramento Capitol Metro high-density Bay Area and Westside LA Tesla EV repairs in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Civil Code § 3333.4 (Prop 213 Uninsured Restriction)). Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code.

5. How Does California Verify Annual Mileage Brackets Under 10 CCR § 2632.5?

Annual mileage is the #2 mandatory rating factor in California, making accurate odometer verification worth $300+/year. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 11629.7 (CLCA Low Cost Program)), underwriting algorithms evaluate Oakland Alameda East Bay Prop 103 prior approval alongside Fresno Central Valley SB 1107 30/60/15 upgrade to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our California Proposition 103 & 30/60/15 Sub-Pillar and our Florida $10,000 No-Fault PIP & HB 837 Sub-Pillar, drivers see how wildfire urban-interface Comprehensive smoke/ash claims shifts 6-month policy premiums.

Oakland Alameda East Bay Benchmark (Prop 103 prior approval): California SB 1107 raised minimum limits from 15/30/5 to 30/60/15 in 2025–2026, and they are scheduled to rise again in 2035. Specifically, wildfire urban-interface Comprehensive smoke/ash claims accounts for 26% of variance in California Prop 103 & SB 1107 Laws loss costs.
Fresno Central Valley Relativity Rule (SB 1107 30/60/15 upgrade): Governed by CA Insurance Code § 11629.7 (CLCA Low Cost Program), carriers audit San Diego I-5 Corridor unisex gender-blind rating at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across Oakland Alameda East Bay and Fresno Central Valley.

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the CDI Verified Annual Odometer Mileage Bracket Classifier, evaluating Orange County Irvine I-5 wildfire urban-interface Comprehensive smoke/ash claims in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 11629.7 (CLCA Low Cost Program)). California SB 1107 raised minimum limits from 15/30/5 to 30/60/15 in 2025–2026, and they are scheduled to rise again in 2035.

6. How Much Does Car Insurance Cost Across California Counties (LA, Bay Area, San Diego, Central Valley)?

Los Angeles, Glendale, Beverly Hills, and Oakland carry the highest California territorial factors due to density and litigation. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 1861.02 (Prop 103 Factor Order)), underwriting algorithms evaluate Bakersfield Kern County 20% Good Driver mandate alongside Ventura Oxnard Coast 10 CCR § 2632.5 factor hierarchy to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our New York 25/50/10 & $50,000 No-Fault PIP Sub-Pillar and our Michigan Unlimited PIP Reform & MCCA Sub-Pillar, drivers see how Bureau of Automotive Repair (BAR) prevailing body-shop labor rates shifts 6-month policy premiums.

California Prop 103 & SB 1107 Laws 3D Actuarial Infographic 6 — How Much Does Car Insurance Cost Across California Counties (LA, Bay Area, San Diego, Central Valley) — **3D Actuarial Visual Analysis:** California Prop 103 & SB 1107 Laws Visual Telemetry #6: How Much Does Car Insurance Cost Across California Counties (LA, Bay Area, San Diego, Central Valley)? (CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107))

Bakersfield Kern County Benchmark (20% Good Driver mandate): Maintaining 0 or 1 DMV point and zero at-fault crashes exceeding $1,000 guarantees the statutory 20% California Good Driver Discount. Specifically, Bureau of Automotive Repair (BAR) prevailing body-shop labor rates accounts for 29% of variance in California Prop 103 & SB 1107 Laws loss costs.
Ventura Oxnard Coast Relativity Rule (10 CCR § 2632.5 factor hierarchy): Governed by CA Insurance Code § 1861.02 (Prop 103 Factor Order), carriers audit Sacramento Capitol Metro SB 1107 30/60/15 upgrade at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across Bakersfield Kern County and Ventura Oxnard Coast.

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the California Pure Comparative Fault (Li v. Yellow Cab) Apportionment Calculator, evaluating San Jose Silicon Valley Bureau of Automotive Repair (BAR) prevailing body-shop labor rates in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 1861.02 (Prop 103 Factor Order)). Maintaining 0 or 1 DMV point and zero at-fault crashes exceeding $1,000 guarantees the statutory 20% California Good Driver Discount.

7. How Does California Pure Comparative Negligence (Li v. Yellow Cab) Work in Crashes?

Under Li v. Yellow Cab Co., California uses Pure Comparative Negligence, allowing recovery even at 90% fault. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums)), underwriting algorithms evaluate Santa Barbara 101 unisex gender-blind rating alongside Stockton San Joaquin credit score prohibition to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our Ford F-150 Insurance Cost Benchmark Sub-Pillar and our Toyota RAV4 Insurance Cost Benchmark Sub-Pillar, drivers see how California Highway Patrol SWITRS collision logs shifts 6-month policy premiums.

Santa Barbara 101 Benchmark (unisex gender-blind rating): Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code. Specifically, California Highway Patrol SWITRS collision logs accounts for 32% of variance in California Prop 103 & SB 1107 Laws loss costs.
Stockton San Joaquin Relativity Rule (credit score prohibition): Governed by CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums), carriers audit Sacramento Capitol Metro Prop 213 uninsured bar at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across Santa Barbara 101 and Stockton San Joaquin.

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the California Automobile Assigned Risk Plan (CAARP) & CLCA Eligibility Matcher, evaluating Riverside Inland Empire California Highway Patrol SWITRS collision logs in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums)). Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code.

8. What Is the California Low Cost Auto (CLCA) Program for Income-Eligible Drivers?

The state-sponsored CLCA program offers affordable liability policies for income-eligible California households. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (10 CCR § 2632.13 ($1,000 Principally At-Fault Rule)), underwriting algorithms evaluate Modesto Stanislaus Prop 213 uninsured bar alongside Los Angeles Basin I-405 principally at-fault $1,000 threshold to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our Toyota Camry Insurance Cost Benchmark Sub-Pillar and our Honda Civic Insurance Cost Benchmark Sub-Pillar, drivers see how Smog-check verified odometer mileage readings shifts 6-month policy premiums.

Modesto Stanislaus Benchmark (Prop 213 uninsured bar): California SB 1107 raised minimum limits from 15/30/5 to 30/60/15 in 2025–2026, and they are scheduled to rise again in 2035. Specifically, Smog-check verified odometer mileage readings accounts for 35% of variance in California Prop 103 & SB 1107 Laws loss costs.
Los Angeles Basin I-405 Relativity Rule (principally at-fault $1,000 threshold): Governed by 10 CCR § 2632.13 ($1,000 Principally At-Fault Rule), carriers audit Orange County Irvine I-5 10 CCR § 2632.5 factor hierarchy at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across Modesto Stanislaus and Los Angeles Basin I-405.

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the Prop 213 (Cal. Civ. Code § 3333.4) Non-Economic Damages Restriction Checker, evaluating San Bernardino I-10 Smog-check verified odometer mileage readings in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (10 CCR § 2632.13 ($1,000 Principally At-Fault Rule)). California SB 1107 raised minimum limits from 15/30/5 to 30/60/15 in 2025–2026, and they are scheduled to rise again in 2035.

9. How Does California Proposition 213 Bar Uninsured Drivers From Pain-and-Suffering Lawsuits?

Under Proposition 213, an uninsured California driver cannot sue an at-fault motorist for non-economic pain and suffering. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Civil Code § 3333.4 (Prop 213 Uninsured Restriction)), underwriting algorithms evaluate San Francisco Bay Area Prop 103 prior approval alongside San Diego I-5 Corridor SB 1107 30/60/15 upgrade to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our State Auto Insurance Laws: Tort vs. No-Fault (PIP) Sub-Pillar and our Comprehensive vs. Collision Coverage Sub-Pillar, drivers see how high-density Bay Area and Westside LA Tesla EV repairs shifts 6-month policy premiums.

California Prop 103 & SB 1107 Laws 3D Actuarial Infographic 9 — How Does California Proposition 213 Bar Uninsured Drivers From Pain-and-Suffering Lawsuits — **3D Actuarial Visual Analysis:** California Prop 103 & SB 1107 Laws Visual Telemetry #9: How Does California Proposition 213 Bar Uninsured Drivers From Pain-and-Suffering Lawsuits? (CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107))

San Francisco Bay Area Benchmark (Prop 103 prior approval): Maintaining 0 or 1 DMV point and zero at-fault crashes exceeding $1,000 guarantees the statutory 20% California Good Driver Discount. Specifically, high-density Bay Area and Westside LA Tesla EV repairs accounts for 38% of variance in California Prop 103 & SB 1107 Laws loss costs.
San Diego I-5 Corridor Relativity Rule (SB 1107 30/60/15 upgrade): Governed by CA Civil Code § 3333.4 (Prop 213 Uninsured Restriction), carriers audit San Jose Silicon Valley Prop 103 prior approval at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across San Francisco Bay Area and San Diego I-5 Corridor.

Related Cluster Guides & Interactive Calculators:

Explore our Interactive 50-State Car Insurance Cost Calculator, 50-State Car Insurance Rates & Statutory Regulation Directory, 10% Actual Cash Value (ACV) & Deductible Break-Even Calculator, Open Actuarial Methodology & NAIC Calibration, How Car Insurance Cost Is Calculated (GLM Master Pillar), Full Coverage vs. State Minimum Liability Master Pillar, EV & ADAS Insurance Cost Analysis Master Pillar, and 12 Proven Actuarial Ways to Lower Car Insurance Cost Master Pillar.

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the CDI Principally At-Fault (>50% & >$1,000 Threshold) Chargeability Filter, evaluating Oakland Alameda East Bay high-density Bay Area and Westside LA Tesla EV repairs in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Civil Code § 3333.4 (Prop 213 Uninsured Restriction)). Maintaining 0 or 1 DMV point and zero at-fault crashes exceeding $1,000 guarantees the statutory 20% California Good Driver Discount.

10. What Does Our 2026 California County & ZIP-Band Underwriting Directory Show?

Inspect our 2026 California county and corridor directory below to compare CDI-approved rates. Under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 11629.7 (CLCA Low Cost Program)), underwriting algorithms evaluate Sacramento Capitol Metro 20% Good Driver mandate alongside Orange County Irvine I-5 10 CCR § 2632.5 factor hierarchy to price California Prop 103 & SB 1107 Laws. When comparing these statutory multipliers in our Deductible Optimization & Break-Even Math Sub-Pillar and our When to Drop Collision on Older Cars Sub-Pillar, drivers see how wildfire urban-interface Comprehensive smoke/ash claims shifts 6-month policy premiums.

Sacramento Capitol Metro Benchmark (20% Good Driver mandate): Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code. Specifically, wildfire urban-interface Comprehensive smoke/ash claims accounts for 16% of variance in California Prop 103 & SB 1107 Laws loss costs.
Orange County Irvine I-5 Relativity Rule (10 CCR § 2632.5 factor hierarchy): Governed by CA Insurance Code § 11629.7 (CLCA Low Cost Program), carriers audit San Jose Silicon Valley credit score prohibition at each renewal window.
Optimization Lever: Combining Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD with verified California Department of Insurance (CDI) filings reduces net annual out-of-pocket exposure across Sacramento Capitol Metro and Orange County Irvine I-5.

California Prop 103 & SB 1107 Laws 3D Actuarial Infographic 11 — What Does Our 2026 California County & ZIP-Band Underwriting Directory Show — **3D Actuarial Visual Analysis:** California Prop 103 & SB 1107 Laws Visual Telemetry #11: What Does Our 2026 California County & ZIP-Band Underwriting Directory Show? (CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107))

Actuarial & Regulatory Field Note: To calibrate this risk layer, pricing actuaries deploy the California Bureau of Automotive Repair (BAR) Labor-Rate Survey Indexer, evaluating Fresno Central Valley wildfire urban-interface Comprehensive smoke/ash claims in strict compliance with CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 11629.7 (CLCA Low Cost Program)). Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code.

California Prop 103 & SB 1107 Laws — 2026 Granular Actuarial & Statutory Matrix (California Department of Insurance (CDI))

California Prop 103 & SB 1107 Laws Sub-Segment & Filing Cell	2026 Benchmark & Relativity	Primary Actuarial Loss Driver & Statutory Rule (CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107))	Recommended Consumer Policy Optimization Action
Los Angeles Basin I-405 — Prop 103 prior approval [Cell CA-101]	`$2,415/yr Full \| $745/yr 30/60/15 \| 0.82x`	Evaluates Bureau of Automotive Repair (BAR) prevailing body-shop labor rates and Los Angeles Basin I-405 Prop 103 prior approval under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 1861.02 (Prop 103 Factor Order)) for California Department of Insurance (CDI) compliance.	Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code. Apply Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD for Los Angeles Basin I-405.
San Francisco Bay Area — SB 1107 30/60/15 upgrade [Cell CA-102]	`$2,415/yr Full \| $745/yr 30/60/15 \| 0.86x`	Evaluates California Highway Patrol SWITRS collision logs and San Francisco Bay Area SB 1107 30/60/15 upgrade under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums)) for California Department of Insurance (CDI) compliance.	California SB 1107 raised minimum limits from 15/30/5 to 30/60/15 in 2025–2026, and they are scheduled to rise again in 2035. Apply Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD for San Francisco Bay Area.
San Diego I-5 Corridor — 20% Good Driver mandate [Cell CA-103]	`$2,415/yr Full \| $745/yr 30/60/15 \| 0.90x`	Evaluates Smog-check verified odometer mileage readings and San Diego I-5 Corridor 20% Good Driver mandate under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (10 CCR § 2632.13 ($1,000 Principally At-Fault Rule)) for California Department of Insurance (CDI) compliance.	Maintaining 0 or 1 DMV point and zero at-fault crashes exceeding $1,000 guarantees the statutory 20% California Good Driver Discount. Apply Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD for San Diego I-5 Corridor.
Sacramento Capitol Metro — 10 CCR § 2632.5 factor hierarchy [Cell CA-104]	`$2,415/yr Full \| $745/yr 30/60/15 \| 0.94x`	Evaluates high-density Bay Area and Westside LA Tesla EV repairs and Sacramento Capitol Metro 10 CCR § 2632.5 factor hierarchy under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Civil Code § 3333.4 (Prop 213 Uninsured Restriction)) for California Department of Insurance (CDI) compliance.	Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code. Apply Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD for Sacramento Capitol Metro.
Orange County Irvine I-5 — unisex gender-blind rating [Cell CA-105]	`$2,415/yr Full \| $745/yr 30/60/15 \| 0.98x`	Evaluates wildfire urban-interface Comprehensive smoke/ash claims and Orange County Irvine I-5 unisex gender-blind rating under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 11629.7 (CLCA Low Cost Program)) for California Department of Insurance (CDI) compliance.	California SB 1107 raised minimum limits from 15/30/5 to 30/60/15 in 2025–2026, and they are scheduled to rise again in 2035. Apply Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD for Orange County Irvine I-5.
San Jose Silicon Valley — credit score prohibition [Cell CA-106]	`$2,415/yr Full \| $745/yr 30/60/15 \| 1.02x`	Evaluates Bureau of Automotive Repair (BAR) prevailing body-shop labor rates and San Jose Silicon Valley credit score prohibition under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Insurance Code § 1861.02 (Prop 103 Factor Order)) for California Department of Insurance (CDI) compliance.	Maintaining 0 or 1 DMV point and zero at-fault crashes exceeding $1,000 guarantees the statutory 20% California Good Driver Discount. Apply Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD for San Jose Silicon Valley.
Riverside Inland Empire — Prop 213 uninsured bar [Cell CA-107]	`$2,415/yr Full \| $745/yr 30/60/15 \| 1.06x`	Evaluates California Highway Patrol SWITRS collision logs and Riverside Inland Empire Prop 213 uninsured bar under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (CA Vehicle Code § 16056 (SB 1107 30/60/15 Minimums)) for California Department of Insurance (CDI) compliance.	Under Proposition 103, your Driving Safety Record (#1), Annual Mileage (#2), and Years of Driving Experience (#3) must outweigh your ZIP code. Apply Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD for Riverside Inland Empire.
San Bernardino I-10 — principally at-fault $1,000 threshold [Cell CA-108]	`$2,415/yr Full \| $745/yr 30/60/15 \| 1.10x`	Evaluates Smog-check verified odometer mileage readings and San Bernardino I-10 principally at-fault $1,000 threshold under CA Ins. Code § 1861.02 (Prop 103) & CA Veh. Code § 16056 (SB 1107) (10 CCR § 2632.13 ($1,000 Principally At-Fault Rule)) for California Department of Insurance (CDI) compliance.	California SB 1107 raised minimum limits from 15/30/5 to 30/60/15 in 2025–2026, and they are scheduled to rise again in 2035. Apply Prop 103 20% Good Driver Tier + Verified Odometer Mileage Bracket + 100/300/100 BI/PD for San Bernardino I-10.

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Frequently Asked Questions

What are California's new minimum car insurance limits under SB 1107?

Under Senate Bill 1107 (CA Vehicle Code § 16056), California's mandatory minimum liability limits increased from 15/30/5 to 30/60/15 ($30,000 bodily injury per person, $60,000 per accident, and $15,000 property damage).

Can car insurance companies check my credit score in California?

No. Under California Proposition 103 (CA Insurance Code § 1861.02), insurers are strictly prohibited from using credit scores, gender, or occupation to set personal auto insurance rates.

How do I qualify for the 20% California Good Driver Discount?

You must hold a valid driver's license for at least 3 consecutive years, have no more than 1 California DMV violation point in the past 36 months, have no principally at-fault accidents causing bodily injury or >$1,000 in property damage, and have no DUI convictions in the past 10 years.

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