Coverage line

A drafter’s measuring tool reveals a small misalignment in an otherwise orderly model bridge.Illustration for The General Average

What Professional Liability (E&O) Insurance Requirements Apply in California?

California requires a certificate-of-merit filing in professional-negligence lawsuits against licensed architects, professional engineers, and land surveyors. A separate statute sets a 10-year outside limit for actions over certain latent design, surveying, planning, supervision, and construction deficiencies, subject to statutory exceptions.

What Is Professional Liability (E&O) Insurance?

Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. Read the national Professional errors and omissions (E&O) guide.

What to Watch for With Professional Liability (E&O) in California

Certificate of Merit for Design Professionals
A lawsuit over the professional negligence of a licensed architect, engineer, or land surveyor generally requires the plaintiff’s attorney to file a certificate after consulting a qualified professional in the same discipline. The statute allows an exception when the deadline would prevent that consultation; include this procedure when assessing defense-cost exposure. ¹
Latent Construction Defects Have an Outside Limit
For covered latent deficiencies in design, specification, surveying, planning, supervision, or construction, California bars actions brought more than 10 years after substantial completion. The statute has exceptions and does not extend another applicable deadline, so ask how the policy treats older projects and later-reported claims. ²
Schedule Each Licensed Discipline
California’s certificate rule names architects, professional engineers, and land surveyors. If your firm offers more than one of these services, ask the broker to list each discipline and its actual design, survey, planning, and supervision work in the application and policy schedule. ^1,²
Statutory Procedures Do Not Set an E&O Limit
California’s certificate-of-merit and latent-defect statutes set litigation procedures and deadlines, not a professional E&O limit. Ask your broker to compare the firm’s actual policy limits, retroactive date, and reporting terms with its project and claim history. ^1,²

Providers With California License Records

These providers publish a national listing for Professional errors and omissions (E&O); the state records document licenses for the entities and roles shown below. Some records rely on company-reported information rather than independent regulator verification. A national listing does not confirm the product is available in California. Check the regulator’s license lookup and confirm state availability for your business when requesting a quote.

At-Bay
Insurance producer, Surplus-lines broker · checked 2026-09-28
At-Bay Insurance Services LLC
At-Bay’s license page lists P&C producer and surplus-lines broker license numbers for all 50 states and the District of Columbia. These are company disclosures and do not establish product availability in each jurisdiction. ²⁰
At-Bay offers primary miscellaneous professional liability insurance.
Coalition
Insurance producer, Surplus-lines broker · checked 2026-09-28
Coalition Insurance Solutions, Inc.
Coalition’s license page lists producer and surplus-lines licenses for Coalition Insurance Solutions, Inc. in all 50 states and the District of Columbia. The page separately lists insurers; this record covers the brokerage entity only. ²¹
Coalition offers miscellaneous professional liability as an addition to eligible Active Cyber policies.
Corgi
Insurance producer · checked 2026-09-28
Corgi Insurance Services, Inc.
Corgi’s company producer-license table lists 50 jurisdictions: 49 states and the District of Columbia, including DC license 3003091619. New Mexico does not appear in the table and is not included here; the omission does not establish that Corgi is unlicensed there. The company-reported table has no stated as-of date and does not establish product availability. ²²
Corgi lists miscellaneous errors and omissions coverage for service-based businesses.
ERGO NEXT Insurance
Insurance producer · checked 2026-09-28
Next First Insurance Agency, Inc.
ERGO NEXT’s current license table lists Next First Insurance Agency, Inc. in 50 jurisdictions, including Washington, DC; New York is excluded because its table rows name Next Insurance Services and AP Intego, not Next First. The table is company-reported; it does not establish product availability or provide state-regulator verification for each entry. ²⁵
ERGO NEXT lists professional liability insurance, also called errors and omissions insurance.
Gallagher
Insurance producer · checked 2026-09-28
Arthur J. Gallagher Risk Management Services, LLC
Gallagher Small Business’s legal-information page gives the producer identification associated with the disclosed California license. The provider record treats this identifier as company-reported and not independently verified; no other state is recorded. ²³
Gallagher arranges professional errors and omissions insurance for small businesses.
Hiscox
Insurer · checked 2026-09-28
Hiscox Insurance Company Inc.
Hiscox’s U.S. company information states that Hiscox Insurance Company Inc. is licensed in all 50 states and the District of Columbia. This is company-reported insurer authority for this entity and does not establish which company issues every Hiscox-branded product. ²⁴
Hiscox offers professional errors and omissions insurance for small businesses.
TechInsurance
Insurance producer · checked 2026-09-28
Specialty Program Group LLC
TechInsurance’s current licensing page names Specialty Program Group LLC / SPG Insurance Solutions and lists state license numbers, but labels Rhode Island “Individual licenses” rather than identifying a license for the named agency. RI is omitted because this disclosure does not establish agency authority there; this is a search limitation, not an assertion that the company is unlicensed. The remaining state entries are company-reported and are not an insurance product availability map. ²⁷
TechInsurance arranges professional errors and omissions insurance for small businesses.
The Hartford
Insurer · checked 2026-09-28
Hartford Fire Insurance Company
California DOI’s current company profile identifies Hartford Fire Insurance Company (NAIC 19682) as UNLIMITED-NORMAL for property and casualty, authorized since 7 January 1870. The source covers this insurer in California and does not map every Hartford product to an issuing subsidiary; no expiry/renewal date is shown. ²⁸
The Hartford offers professional liability insurance for service businesses.
Travelers
Insurer · checked 2026-09-28
The Travelers Indemnity Company
California DOI’s current company profile identifies The Travelers Indemnity Company (NAIC 25658) as UNLIMITED-NORMAL for property and casualty, authorized since 17 June 2002. The source covers this insurer in California and does not map every Travelers product to this issuing company; no expiry/renewal date is shown. ²⁹
Travelers offers professional errors and omissions insurance.
Vouch
Insurance producer, Surplus-lines broker · checked 2026-09-28
Vouch Specialty Insurance Services, LLC
Vouch’s licenses page, effective January 16, 2025, lists producer licenses in all 50 states and DC. Its separate surplus-lines table includes Idaho number 870820, while a footnote says Georgia and Idaho do not issue agency-level surplus-lines licenses. Because those statements conflict for Idaho, this record keeps Idaho producer-only and does not treat the table number as established agency surplus-lines authority. The page is company-reported and does not establish product availability. ³⁰
Vouch lists errors and omissions among the core coverages in its professional-services programs.

Who Regulates Insurance in California?

California Department of Insurance

The California Department of Insurance regulates insurers and insurance producers, provides company and license-status searches, and accepts complaints through its Consumer Complaint Center. Its commercial-insurance guidance explains the Department’s limited jurisdiction over surplus-line insurers. ^5,^6,^7,^8,¹⁸

Website: Regulator website
License lookup: Search licensed producers
Complaints: File a complaint
Phone: (800) 927-4357

Surplus-Lines Tax and Stamping Office in California

Reported tax rate. 3% of taxable premium when California is the insured's home state ^9,^11,^16,^8,^10,^12,^13,^14,¹⁷

When California is your home state, the surplus-line broker tax is generally 3% of gross premiums less returned premiums. Ask the broker to show the home-state determination, taxable premium and any applicable exception; ordinary multistate reporting does not itself reduce the tax base. A broker generally must search the admitted market unless a California exemption or the qualified federal commercial-purchaser exception applies. CIGA does not protect claims under a surplus-line policy.

Surplus Line Association of California

California usually requires an admitted-market search: Before most nonadmitted placements, a broker must search among admitted insurers. After a public hearing and the required statutory findings, California’s Commissioner may exempt qualifying coverage or risks through an Export List order. The confidential written report remains required under §1763.1. Separately, §1763(h) waives the search for a commercial insured meeting California’s §1760.1(b) definition: the broker must first give written disclosure about possible admitted-market availability and its potential greater protection and oversight, then receive the insured’s written request for nonadmitted placement. The broker must ensure eligibility, with a safe harbor for reasonable reliance on information supplied in good faith. The federal exempt-commercial-purchaser route under §8205 has its own §8206 definition and requires disclosure about possible admitted-market availability and its potential greater protection and oversight, followed by the purchaser’s written request. Ask which route and eligibility criteria the broker relies on. ^10,^13,^14,^3,^4,¹⁹
Separate tax calculation from allocation reporting: Section 1775.5 generally counts the entire premium for nonadmitted insurance placed in one transaction with one underwriter or group for a California-home-state insured. It has a separate interstate-motor-transit formula and exclusions for premiums on insurance placed by or through a special-lines surplus line broker under §1760.5 and the defined risk-financing portion of specified Superfund remediation products. CDI’s calendar-year 2025 instructions include policy-related fees in gross premium, say it does not collect the tax on risks outside the United States, and treat multistate allocation percentages as informational. Have the broker explain how those rules apply to your placement. ^11,^15,¹⁶

Questions to Ask Before You Buy Professional Liability (E&O) in California

Does the application list every California service we provide, including design, surveying, planning, supervision, and construction observation?
How does the policy handle a claim reported years after substantial completion when the project may fall within California’s 10-year latent-defect period?
Are the professional defense costs and any expert-consultation expenses within the limit or paid in addition to it?

Professional Liability (E&O) Insurance in California: FAQ

Does California require a certificate of merit in architect-malpractice cases?

Yes. Before serving a professional-negligence complaint against a licensed architect, engineer, or land surveyor, the plaintiff’s attorney generally must file a certificate based on consultation with a qualified professional in the same discipline. ¹

Does California’s 10-year latent-defect limit replace every other deadline?

No. Section 337.15 says it does not extend other applicable California deadlines, and it lists exceptions including willful misconduct or fraudulent concealment. ²

Sources

30 documents, numbered as cited. Open the sources

Sources for Professional Liability (E&O) Insurance in California

1
California Code of Civil Procedure § 411.35. California Legislative Information; Code of Civil Procedure § 411.35(a)–(c). Accessed 2026-09-28.
2
California Code of Civil Procedure § 337.15. California Legislative Information; Code of Civil Procedure § 337.15(a), (d), and (f)–(g). Accessed 2026-09-28.
3
California Insurance Code §1763. California Legislature; §1763(a): diligent search; (h)(1): defined commercial-insured written disclosure and subsequent request; (h)(2): broker eligibility responsibility and reasonable good-faith reliance. Accessed 2026-09-28.
4
California Insurance Code §1760.1. California Legislature; §1760.1(b): commercial-insured definition at placement, risk manager, prior premiums and size criteria with periodic monetary adjustments; (o): qualified risk manager. Accessed 2026-09-28.
5
California Department of Insurance. California Department of Insurance; Official agency homepage. Accessed 2026-09-28.
6
Company and Agent/Broker Information. California Department of Insurance; State page linking license-status checks, company information, and surplus-line insurer resources. Accessed 2026-09-28.
7
Consumer Complaint Center. California Department of Insurance; Consumer Complaint Center entry point to file an insurance complaint. Accessed 2026-09-28.
8
Commercial Insurance Guide (Form 700, revised June 14, 2024). California Department of Insurance; Form 700 revision beneath heading; What Should I Expect from a Broker-Agent: CDI licensing role (line 333); Surplus Line Insurance: broker disclosure, limited CDI jurisdiction and CIGA exclusion (lines 448–449); Talk to Us: consumer hotline (line 942). Page retrieved September 28, 2026; revision date is not an access date. Accessed 2026-09-28.
9
2024 Annual Report of the Commissioner. California Department of Insurance; Page 169: surplus-line brokers pay 3.00% of surplus-line premiums under CIC § 1775.5. Accessed 2026-09-28.
10
Export List Hearings. California Department of Insurance; CIC §§ 1763 and 1763.1: diligent admitted-market search and commissioner exemption process. Accessed 2026-09-28.
11
California Insurance Code § 1775.5. California Legislature; §1775.5(a) 3% of gross premiums less returns and specified exclusions; (b) entire-premium rule and separate interstate-motor-transit deductions; (e) defined blended finite-risk and risk-financing terms. Accessed 2026-09-28.
12
15 U.S.C. §8201: Reporting, payment, and allocation of premium taxes. U.S. House of Representatives, Office of the Law Revision Counsel; §8201(a) exclusive home-State premium-tax authority; (b)(1) interstate allocation procedures; (c) allocation reporting. Accessed 2026-09-28.
13
15 U.S.C. § 8205: Streamlined application for commercial purchasers. U.S. House of Representatives, Office of the Law Revision Counsel; §8205(1)-(2): broker disclosure that admitted insurance may or may not be available with greater protection and oversight, then purchaser written request; ECP eligibility separately defined in §8206(5). Accessed 2026-09-28.
14
15 U.S.C. § 8206, Definitions. U.S. House of Representatives, Office of the Law Revision Counsel; §8206(5) ECP eligibility including qualified risk manager, prior premiums and adjusted size/other criteria; (6) home State and affiliated-insured rules; (13) qualified risk manager. Accessed 2026-09-28.
15
California Insurance Code § 1760.5. California Legislature, Legislative Counsel; §1760.5(g): premiums placed under the special-lines license are not subject to the §1775.5 broker tax. Accessed 2026-09-28.
16
CDI FS-006, Surplus Line Broker and Special Lines Surplus Line Broker Insurance (Premium) Tax Return Instructions, revised 2025-11, calendar-year 2025. California Department of Insurance; Calendar-year 2025 instructions revised November 2025; page 2, lines 1–4: fees, outside-US risks, returns and 3%; page 5: allocation percentages informational. Accessed 2026-09-28.
17
Association Constitution. Surplus Line Association of California; ArticleXV(1) Stamping Office filing function; XV(4) Commissioner-delegated duties subject to approved Plan of Operations. Accessed 2026-09-28.
18
About the Department. California Department of Insurance; Department overview: insurer solvency oversight, agent/broker licensing, company market-conduct reviews, complaints, and insurance-industry regulation. Accessed 2026-09-29.
19
California Insurance Code §1763.1. California Legislature; §1763.1(a): Commissioner order after public hearing and statutory findings; Export List exemptions retain confidential written report; restricted classes and continuing review. Accessed 2026-09-29.
20
Licenses. At-Bay; Current producer introduction and state table; At-Bay Insurance Services LLC; P&C and surplus-lines identifiers. Accessed 2026-09-21.
21
Licenses and Carriers. Coalition; Licenses and Carriers, re-read 22 September 2026: Insurance Licenses table for Coalition Insurance Solutions, Inc., national producer number 18419475, with producer and surplus-lines numbers for all 50 states and DC including California 0L76155, Georgia 196479, Texas 2199630 and 2205589, Pennsylvania 815731 and 817452, Colorado 539028 and Wisconsin 3000108852. Insurance Carriers table naming, with NAIC numbers, Allianz Underwriters Insurance Company 36420, Arch Specialty Insurance Company 21199, Ascot Specialty Insurance Company 45055, Ascot Insurance Company 23752, Aspen Specialty Insurance Company 10717, Chaucer Insurance Company DAC, Coalition Insurance Company 29530, Fireman's Fund Indemnity Corporation 11380, Fortegra Specialty Insurance Company 16823, Lloyd's of London, MSIG Specialty Insurance USA Inc. 34886, MS Transverse Specialty Insurance Company 41807, Steadfast Insurance Company 26387, Vantage Risk Specialty Insurance Company 16275 and Zurich American Insurance Company 16535. Accessed 2026-09-22.
22
Insurance Producer Licenses. Corgi Insurance; Current complete Insurance Producer Licenses table for Corgi Insurance Services, Inc.; 50 rows covering 49 states and DC (DC 3003091619); no New Mexico row; no NPN or as-of date shown. Accessed 2026-09-28.
23
Legal Information. Gallagher Small Business; Producer identification immediately above Quick Links. Accessed 2026-09-16.
24
About Hiscox US Insurance. Hiscox; Hiscox Insurance Company Inc. NAIC 10200 as Chicago, IL domiciled insurer admitted or licensed in all 50 states and D.C.; Hiscox Inc. as general agent and Lloyd’s coverholder for Syndicates 33 and 3624; surplus-lines placements through licensed surplus-lines brokers; A.M. Best rating statement. Accessed 2026-09-16.
25
Licenses. ERGO NEXT Insurance; Current entity-by-state license table reopened 28 September 2026: 50 rows under Next First Insurance Agency, Inc., including Washington, DC; New York rows instead list Next Insurance Services PC-1423070 and AP Intego BR-1198885. Accessed 2026-09-28.
26
Licenses & Disclosures. RiskCube; Property & Casualty Producer/Broker Licenses; February 11, 2026 version. Accessed 2026-09-16.
27
Insurance Licenses by State. TechInsurance; Current state table; identifies TechInsurance as a division of Specialty Program Group LLC d/b/a SPG Insurance Solutions; lists DC 3000041536 and labels Rhode Island “Individual licenses,” without an agency license number. Accessed 2026-09-28.
28
Hartford Fire Insurance Company. California Department of Insurance; NAIC 19682; California Company ID 0085-1; authorized 01/07/1870; license status UNLIMITED-NORMAL; property and casualty; Connecticut domicile. No expiry/renewal field. Accessed 2026-09-28. Accessed 2026-09-28.
29
Company Profile — Travelers Indemnity Company (The). California Department of Insurance; NAIC 25658; California Company ID 4772-0; authorized 06/17/2002; license status UNLIMITED-NORMAL; property and casualty; Connecticut domicile. No expiry/renewal field. Accessed 2026-09-28. Accessed 2026-09-28.
30
Licenses. Vouch; Effective 16 January 2025: Vouch Specialty Insurance Services, LLC, NPN 19926463; P&C table (50 states and DC); surplus-lines table includes Idaho 870820; footnote says Georgia and Idaho do not issue agency-level surplus-lines licenses; Idaho retained as producer-only due to conflict. Accessed 2026-09-15.

What Professional Liability (E&O) Insurance Requirements Apply in California?

What Is Professional Liability (E&O) Insurance?

What to Watch for With Professional Liability (E&O) in California

Certificate of Merit for Design Professionals

Latent Construction Defects Have an Outside Limit

Schedule Each Licensed Discipline

Statutory Procedures Do Not Set an E&O Limit

Providers With California License Records

At-Bay

Coalition

Corgi

ERGO NEXT Insurance

Gallagher

Hiscox

TechInsurance

The Hartford

Travelers

Vouch