Coverage description
An Insurance Services Office (ISO) standard form. It excludes property damage from the explosion, collapse or underground property damage hazards entered in its schedule, except for operations performed for you by others and damage within the products-completed operations hazard.
How the form has changed
The 12 04 edition updates the coverage parts it applies to, the schedule layout and the form date. The coverage wording is the same as 01 96.
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 12 04Dec 2004Latest | 135 | 69 | 34 | Nov 2021 to Oct 2026 |
| 01 96Jan 1996 | 5 | 3 | 5 | Nov 2021 to Mar 2024 |
What the filings show
- Edition in use: in the past 12 months, 23 companies filed the 12 04 edition.
- CG 21 39 (Contractual Liability Limitation) is filed alongside it most often, in 134 of the same filings (96%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 21 42, out of 42 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company | 17 | 17 | 12 04 | Jan 4, 2023 |
| WCF Mutual Insurance Company GroupAssociated Indemnity Corporation | 16 | 16 | 12 04 | Jan 15, 2026 |
| Nationwide Corporation Group7 group companies filed it, led by Allied Insurance Company of America and Nationwide Agribusiness Insurance Company | 9 | 3 | 12 04 | Feb 12, 2025 |
| Markel Corporation Group2 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company | 8 | 4 | 12 04 | Oct 22, 2026 |
| Siriuspoint GroupSiriusPoint America Insurance Company | 7 | 3 | 12 04 | Jun 15, 2026 |
| Starr Group2 group companies filed it, led by Starr Indemnity and Liability Company and Starr Specialty Insurance Company | 6 | 4 | 12 04 | Sep 8, 2025 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 5 | 2 | 12 04 | Jun 26, 2026 |
| Sompo GroupSompo America Insurance Company | 5 | 1 | 12 04 | Jun 18, 2026 |
| Tokio Marine Holdings Incorporated GroupSafety National Casualty Corporation | 5 | 1 | 12 04 | Feb 17, 2026 |
| Trisura GroupTrisura Insurance Company | 5 | 3 | 12 04 | Jul 10, 2026 |
How the largest insurers handle CG 21 42
Groups among the largest commercial general liability insurers that filed CG 21 42 or their own version in the past five years.
- WR Berkley Corporation GroupUses CG 21 42 in 1 filing
- Fairfax Financial GroupUses CG 21 42 in 2 filings
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States
Number of filings that include CG 21 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 21 39Contractual Liability Limitation134 filings
- CG 21 45Exclusion - Damage to Premises Rented to You131 filings
- CG 21 35Exclusion - Coverage C - Medical Payments130 filings
- CG 22 70Real Estate Property Managed127 filings
- CG 21 96Silica or Silica- Related Dust Exclusion124 filings
- CG 20 05Additional Insured - Controlling Interest123 filings
- CG 20 27Additional Insured - Co-Owner of Insured Premises123 filings
- CG 21 47Employment- Related Practices Exclusion122 filings
- CG 21 49Total Pollution Exclusion Endorsement122 filings
- CG 21 66Exclusion – Volunteer Workers as Insureds122 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 04 | STNA-135128706 |
| Oct 6, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CA | 12 04 | CNAB-135091690 |
| Aug 17, 2026 | Mississippi Farm Bureau Casualty Insurance Company | MS | 12 04 | SFBC-135017175 |
| Jul 10, 2026 | Southern Farm Bureau Casualty Insurance Company | LA | 12 04 | SFBC-135013358 |
| Jul 10, 2026 | Trisura Insurance Company | WA | 12 04 | SHNF-134976660 |
| Jun 30, 2026 | Trisura Insurance Company | IL | 12 04 | SHNF-134983369 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 04 | CHMU-134947220 |
| Jun 18, 2026 | Sompo America Insurance Company | CO | 12 04 | SMPJ-134985965 |
| Jun 17, 2026 | Atlantic Specialty Insurance Company | NM | 12 04 | BEAC-134983795 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 12 04 | MRTN-134978899 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 12 04 | MRTN-134978902 |
| Jun 2, 2026 | Zenith Insurance Company | CA | 12 04 | ZICO-134965759 |
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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