Coverage description
An Insurance Services Office (ISO) standard form. It makes anyone you agree in a written contract to add as an additional insured an insured for injury or damage caused by your operations, limited to what the contract requires, with a professional services exclusion.
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 12 19Dec 2019Latest | 177 | 90 | 40 | Nov 2021 to Oct 2026 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 10/1/2020.
What the filings show
- Edition in use: in the past 12 months, 31 companies filed the 12 19 edition.
- CG 20 15 (Additional Insured – Vendors) is filed alongside it most often, in 156 of the same filings (88%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings. One filing can cover several affiliated companies.
Carriers filing this form
The 10 carrier groups with the most filings that include CG 20 43, out of 45 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| United Fire & CAS Group7 group companies filed it, led by United Fire and Casualty Company and Addison Insurance Company | 29 | 28 | 12 19 | Dec 28, 2022 |
| Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company | 16 | 16 | 12 19 | Oct 23, 2023 |
| WCF Mutual Insurance Company GroupAssociated Indemnity Corporation | 16 | 16 | 12 19 | Jan 15, 2026 |
| Merchants Mutual Group2 group companies filed it, led by Merchants Preferred Insurance Company and Merchants Mutual Insurance Company | 10 | 5 | 12 19 | Dec 8, 2025 |
| Tokio Marine Holdings Incorporated Group4 group companies filed it, led by Safety National Casualty Corporation and TNUS Insurance Company | 8 | 2 | 12 19 | Feb 17, 2026 |
| Acuity, A Mutual Insurance Company | 7 | 4 | 12 19 | Jul 1, 2025 |
| Sompo GroupSompo America Insurance Company | 7 | 2 | 12 19 | Jun 18, 2026 |
| Grange Mutual CAS Group3 group companies filed it, led by Grange Indemnity Insurance Company and Grange Insurance Company | 6 | 6 | 12 19 | Mar 28, 2024 |
| Hastings Mutual Insurance Company | 6 | 5 | 12 19 | Mar 13, 2025 |
| Siriuspoint GroupSiriusPoint America Insurance Company | 6 | 2 | 12 19 | Jun 15, 2026 |
How the largest insurers handle CG 20 43
Groups among the largest commercial general liability insurers that filed CG 20 43 or their own version in the past five years.
- Berkshire Hathaway GroupUses CG 20 43 in 1 filing
- WR Berkley Corporation GroupUses CG 20 43 in 1 filing
- Fairfax Financial GroupUses CG 20 43 in 2 filings
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States
Number of filings that include CG 20 43 in each state, Oct 2021 to Oct 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CG 20 15Additional Insured – Vendors156 filings
- CG 20 26Additional Insured – Designated Person or Organization156 filings
- CG 20 28Additional Insured – Lessor of Leased Equipment153 filings
- CG 20 44Additional Insured – Vendors – Automatic Status When Required in Agreement151 filings
- CG 20 34Additional Insured – Lessor of Leased Equipment – Automatic Status When Required in Lease Agreement with You150 filings
- CG 20 35Additional Insured – Grantor of Licenses – Automatic Status When Required by Licensor149 filings
- CG 20 36Additional Insured – Grantor of Licenses149 filings
- CG 20 32Additional Insured – Engineers, Architects or Surveyors Not Engaged by the Named Insured146 filings
- CG 24 04Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)139 filings
- CG 20 41Additional Insured – Owners, Lessees or Contractors – Completed Operations Subject to the General Aggregate138 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Oct 22, 2026 | State National Insurance Company, Inc. | CO | 12 19 | STNA-135128706 |
| Oct 21, 2026 | Allied Insurance Company of Americaand 4 more | CA | 12 19 | NWPP-G135131050 |
| Aug 17, 2026 | Mississippi Farm Bureau Casualty Insurance Company | MS | 12 19 | SFBC-135017175 |
| Jul 10, 2026 | Southern Farm Bureau Casualty Insurance Company | LA | 12 19 | SFBC-135013358 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 19 | CHMU-134947220 |
| Jun 24, 2026 | Southern Trust Insurance Company | GA | 12 19 | STTR-134864949 |
| Jun 18, 2026 | Sompo America Insurance Company | CO | 12 19 | SMPJ-134985965 |
| Jun 17, 2026 | Atlantic Specialty Insurance Company | NM | 12 19 | BEAC-134983795 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 12 19 | MRTN-134978899 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 12 19 | MRTN-134978902 |
| Jun 2, 2026 | Zenith Insurance Company | CA | 12 19 | ZICO-134965759 |
| Apr 30, 2026 | Trisura Insurance Company | CA | 12 19 | SHNF-134881681 |
Most filed ISO CG forms
- CG 40 32 Exclusion - Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS)
- CG 21 06 Exclusion - Access Or Disclosure Of Confidential Or Personal Material Or Information
- CG 20 10 Additional Insured - Owners, Lessees or Contractors - Scheduled Person or Organization Endorsement
- CG DS 01 Commercial General Liability Declarations
- CG 20 26 Additional Insured - Designated Person or Organization Endorsement
- CG 00 01 Commercial General Liability Coverage Form
- CG 20 37 Additional Insured - Owners, Lessees or Contractors - Completed Operations Endorsement
- CG 40 28 Broad Abuse or Molestation Exclusion
- CG 20 28 Additional Insured - Lessor of Leased Equipment
- CG 20 11 Additional Insured - Managers or Lessors of Premises
- CG 21 47 Employment-Related Practices Exclusion
- CG 04 35 Employee Benefits Liability Coverage
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