Coverage description
An Insurance Services Office (ISO) standard form. It states that if insured losses from certified acts of terrorism exceed $100 billion in a calendar year and the insurer has met its deductible, the insurer will not pay its share of losses above that amount.
How the form has changed
2 changes across 1 revision, newest first. Each edition is compared with the one before it, using wording from filed copies.
01 15 edition
Jan 2015, compared with 01 08Latest editionCertification of an act of terrorism no longer requires the concurrence of the Secretary of State and the Attorney General.
01 08
“in concurrence with the Secretary of State and the Attorney General”
01 15
“in accordance with the provisions of the federal Terrorism Risk Insurance Act”
A new provision states that a terrorism exclusion, or the lack of one, does not create coverage for injury or damage otherwise excluded.
01 08
Not in this edition
01 15
“do not serve to create coverage for injury or damage that is otherwise excluded under this Coverage Part”
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 01 15Jan 2015Latest | 196 | 96 | 35 | Dec 2021 to Oct 2026 |
| 01 08Jan 2008 | 4 | 6 | 3 | Jun 2022 to Jun 2024 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 11 02.
What the filings show
- Edition in use: in the past 12 months, 37 companies filed the 01 15 edition.
- CG 21 73 (Exclusion of Certified Acts of Terrorism) is filed alongside it most often, in 170 of the same filings (84%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 70, out of 50 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| WR Berkley Corporation Group14 group companies filed it, led by Berkley National Insurance Company and Acadia Insurance Company | 38 | 27 | 01 15 | Jun 19, 2026 |
| WCF Mutual Insurance Company GroupAssociated Indemnity Corporation | 16 | 16 | 01 15 | Jan 15, 2026 |
| Nationwide Corporation Group8 group companies filed it, led by Allied Insurance Company of America and Nationwide Agribusiness Insurance Company | 11 | 4 | 01 15 | Jul 21, 2025 |
| Markel Corporation Group3 group companies filed it, led by State National Insurance Company, Inc. and City National Insurance Company | 10 | 5 | 01 1501 08 | Oct 22, 2026 |
| CNA Insurance Group6 group companies filed it, led by American Casualty Company of Reading, Pennsylvania and National Fire Insurance Company of Hartford | 9 | 3 | 01 15 | Oct 6, 2026 |
| ACP Insurance Mgmt LLC GroupAccelerant National Insurance Company | 8 | 2 | 01 15 | Dec 8, 2025 |
| Siriuspoint GroupSiriusPoint America Insurance Company | 7 | 3 | 01 15 | Jun 15, 2026 |
| Trisura GroupTrisura Insurance Company | 7 | 4 | 01 15 | Jul 10, 2026 |
| Amtrust Financial Services Group6 group companies filed it, led by First Nonprofit Insurance Company and CorePointe Insurance Company | 6 | 3 | 01 1511 02 | Apr 10, 2025 |
| Starr Group2 group companies filed it, led by Starr Indemnity and Liability Company and Starr Specialty Insurance Company | 6 | 4 | 01 1501 08 | Sep 8, 2025 |
How the largest insurers handle CG 21 70
Groups among the largest commercial general liability insurers that filed CG 21 70 or their own version in the past five years.
- WR Berkley Corporation GroupUses CG 21 70 in 1 filing
- Fairfax Financial GroupUses CG 21 70 in 2 filings
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Search related forms, compare editions, and research carrier filings with FilingFocus.
States
Number of filings that include CG 21 70 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 73Exclusion of Certified Acts of Terrorism170 filings
- IL 00 21Nuclear Energy Liability Exclusion Endorsement (Broad Form)144 filings
- CG 21 76Exclusion of Punitive Damages Related to a Certified Act of Terrorism140 filings
- IL 00 17Common Policy Conditions135 filings
- IL 09 85Disclosure Pursuant to Terrorism Risk Insurance Act133 filings
- CG 04 35Employee Benefits Liability Coverage130 filings
- CG 03 00Deductible Liability Insurance (for Use with Cgl and Products Policies)127 filings
- CG 21 53Exclusion - Designated Ongoing Operations127 filings
- CG 21 34Exclusion - Designated Work (for Use with Cgl and Products Policies)125 filings
- CG 20 11Additional Insured - Managers or Lessors of Premises124 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 | 01 15 | STNA-135128706 |
| Oct 6, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CA | 01 15 | CNAB-135091690 |
| Aug 20, 2026 | New York Marine and General Insurance Company | SC | 01 15 | PERR-135060921 |
| Jul 10, 2026 | Trisura Insurance Company | WA | 01 15 | SHNF-134976660 |
| Jun 30, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CO | 01 15 | CNAB-135005337 |
| Jun 30, 2026 | Trisura Insurance Company | IL | 01 15 | SHNF-134983369 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 01 15 | CHMU-134947220 |
| Jun 19, 2026 | Acadia Insurance Companyand 4 more | CO | 01 15 | BNIC-134992811 |
| Jun 19, 2026 | Berkley Casualty Companyand 8 more | CO | 01 15 | BNIC-134992815 |
| Jun 18, 2026 | Sompo America Insurance Company | CO | 01 15 | SMPJ-134985965 |
| Jun 17, 2026 | Atlantic Specialty Insurance Company | NM | 01 15 | BEAC-134983795 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 01 15 | MRTN-134978899 |
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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