Coverage description
An Insurance Services Office (ISO) standard form. It automatically adds anyone you agreed by contract to add as an additional insured for injury or damage caused by your acts in the operations described in the schedule, excluding completed operations and professional services, with limits capped at the contract requirement.
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 | 114 | 74 | 24 | Dec 2021 to Oct 2026 |
2 other edition dates appear in one or two filings each, often carrier-specific versions: 12 29, 10/1/2020.
What the filings show
- Edition in use: in the past 12 months, 27 companies filed the 12 19 edition.
- CG 20 43 (Additional Insured - Automatic Status When Required in Written Contract or Agreement) is filed alongside it most often, in 109 of the same filings (94%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 42, out of 39 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| WCF Mutual Insurance Company GroupAssociated Indemnity Corporation | 17 | 17 | 12 19 | Jan 15, 2026 |
| Tokio Marine Holdings Incorporated Group4 group companies filed it, led by Safety National Casualty Corporation and TNUS Insurance Company | 8 | 2 | 12 1912 29 | Feb 17, 2026 |
| 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 |
| Markel Corporation GroupState National Insurance Company, Inc. | 6 | 4 | 12 19 | Oct 22, 2026 |
| Siriuspoint GroupSiriusPoint America Insurance Company | 6 | 2 | 12 19 | Jun 15, 2026 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 5 | 2 | 12 19 | Jun 26, 2026 |
| Nationwide Corporation Group7 group companies filed it, led by Nationwide Agribusiness Insurance Company and Nationwide General Insurance Company | 5 | 3 | 12 19 | Oct 21, 2026 |
| Starr Group2 group companies filed it, led by Starr Indemnity and Liability Company and Starr Specialty Insurance Company | 5 | 2 | 12 1910/1/2020 | Jun 25, 2025 |
How the largest insurers handle CG 20 42
Groups among the largest commercial general liability insurers that filed CG 20 42 or their own version in the past five years.
- Berkshire Hathaway GroupUses CG 20 42 in 1 filing
- WR Berkley Corporation GroupUses CG 20 42 in 1 filing
- Fairfax Financial GroupUses CG 20 42 in 2 filings
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States
Number of filings that include CG 20 42 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 43Additional Insured - Automatic Status When Required in Written Contract or Agreement109 filings
- CG 20 44Additional Insured - Vendors - Automatic Status When Required in Agreement109 filings
- CG 20 01Primary and Noncontributory - Other Insurance Condition108 filings
- CG 20 12Additional Insured - State or Governmental Agency or Subdivision or Political Subdivision - Permits or Authorizations108 filings
- CG 20 27Additional Insured - Co-Owner of Insured Premises108 filings
- CG 20 41Additional Insured - Owners, Lessees or Contractors - Completed Operations Subject to the General Aggregate108 filings
- CG 24 04Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)108 filings
- CG 20 03Additional Insured - Concessionaires Trading Under Your Name107 filings
- CG 20 15Additional Insured – Vendors107 filings
- CG 20 17Additional Insured - Unit-Owners of Townhouse or Homeowner Associations107 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 |
| 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 |
| Mar 20, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CO | 12 19 | CNAB-134872676 |
| Feb 24, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | SC | 12 19 | CNAB-134851008 |
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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