Coverage description
An Insurance Services Office (ISO) standard form. It excludes products-completed operations bodily injury and property damage that would not have occurred but for the discharge or escape of pollutants at any time, along with pollutant cleanup costs and government claims for them.
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 12 07Dec 2007Latest | 97 | 59 | 21 | Dec 2021 to Oct 2026 |
What the filings show
- Edition in use: in the past 12 months, 19 companies filed the 12 07 edition.
- CG 21 34 (Exclusion - Designated Work (for Use with Cgl and Products Policies)) is filed alongside it most often, in 92 of the same filings (95%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 98, out of 35 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| WCF Mutual Insurance Company GroupAssociated Indemnity Corporation | 16 | 16 | 12 07 | Jan 15, 2026 |
| Markel Corporation Group2 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company | 9 | 5 | 12 07 | Oct 22, 2026 |
| Nationwide Corporation Group7 group companies filed it, led by Allied Insurance Company of America and Nationwide Insurance Company of America | 8 | 3 | 12 07 | Feb 12, 2025 |
| Siriuspoint GroupSiriusPoint America Insurance Company | 7 | 3 | 12 07 | Jun 15, 2026 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 5 | 2 | 12 07 | Jun 26, 2026 |
| Sompo GroupSompo America Insurance Company | 5 | 1 | 12 07 | Jun 18, 2026 |
| Tokio Marine Holdings Incorporated GroupSafety National Casualty Corporation | 5 | 1 | 12 07 | Feb 17, 2026 |
| ACP Insurance Mgmt LLC GroupAccelerant National Insurance Company | 3 | 2 | 12 07 | Dec 8, 2025 |
| AU Holding Company GroupContinental Indemnity Company | 3 | 3 | 12 07 | May 3, 2024 |
| CNA Insurance Group6 group companies filed it, led by American Casualty Company of Reading, Pennsylvania and Continental Casualty Company | 3 | 3 | 12 07 | Oct 6, 2026 |
How the largest insurers handle CG 21 98
Groups among the largest commercial general liability insurers that filed CG 21 98 or their own version in the past five years.
- Chubb Limited GroupFiles its own version: CB CG 210009 Total Pollution Exclusion Endorsement (4 states)
- Berkshire Hathaway GroupFiles its own version: M-5788 Total Pollution Exclusion Endorsement (4 states)
- WR Berkley Corporation GroupFiles its own version: CL CG 2263 Total Pollution Exclusion Endorsement (38 states)
- Fairfax Financial GroupUses CG 21 98 in 1 filing
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States
Number of filings that include CG 21 98 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 34Exclusion - Designated Work (for Use with Cgl and Products Policies)92 filings
- CG 03 00Deductible Liability Insurance (for Use with Cgl and Products Policies)91 filings
- CG 21 49Total Pollution Exclusion Endorsement91 filings
- CG 21 53Exclusion - Designated Ongoing Operations91 filings
- CG 21 65Total Pollution Exclusion with a Building Heating, Cooling and Dehumidifying Equipment Exception and a Hostile Fire Exception91 filings
- CG 21 96Silica or Silica- Related Dust Exclusion91 filings
- CG 21 00Exclusion - All Hazards in Connection with Designated Premises90 filings
- CG 21 45Exclusion - Damage to Premises Rented to You90 filings
- CG 21 16Exclusion - Designated Professional Services89 filings
- CG 21 35Exclusion - Coverage C - Medical Payments89 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 07 | STNA-135128706 |
| Oct 6, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CA | 12 07 | CNAB-135091690 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 07 | CHMU-134947220 |
| Jun 18, 2026 | Sompo America Insurance Company | CO | 12 07 | SMPJ-134985965 |
| Jun 17, 2026 | Atlantic Specialty Insurance Company | NM | 12 07 | BEAC-134983795 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 12 07 | MRTN-134978899 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 12 07 | MRTN-134978902 |
| Jun 1, 2026 | CopperPoint Casualty Insurance Companyand 1 more | SC | 12 07 | COPP-134966665 |
| Mar 20, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CO | 12 07 | CNAB-134872676 |
| Feb 24, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | SC | 12 07 | CNAB-134851008 |
| Feb 17, 2026 | Safety National Casualty Corporation | CO | 12 07 | SFCC-134814522 |
| Feb 6, 2026 | Crum and Forster Indemnity Company | CA | 12 07 | CRUM-134831877 |
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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