Coverage description
An Insurance Services Office (ISO) standard form. It limits the insurer's liability for certified terrorism losses once total insured losses under the Terrorism Risk Insurance Act exceed $100 billion in a calendar year and the insurer has met its deductible.
How the form has changed
1 change 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 03 08Latest editionAn act no longer needs the concurrence of the Secretary of State and the Attorney General to be certified as terrorism. Certification follows the Terrorism Risk Insurance Act's own provisions.
03 08
“in concurrence with the Secretary of State and the Attorney General of the United States”
01 15
“in accordance with the provisions of the federal Terrorism Risk Insurance Act, to be an act of terrorism pursuant to such Act”
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 | 387 | 90 | 46 | Nov 2021 to Oct 2026 |
| 03 08Mar 2008 | 4 | 2 | 3 | Dec 2022 to Mar 2023 |
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, 17 companies filed the 01 15 edition.
- IL 09 53 (Exclusion of Certified Acts of Terrorism) is filed alongside it most often, in 325 of the same filings (83%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 IL 09 52, out of 50 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Liberty Mutual Group11 group companies filed it, led by First National Insurance Company of America and General Insurance Company of America | 57 | 34 | 01 1511 02 | Oct 26, 2026 |
| Munich RE GroupNext Insurance US Company | 54 | 38 | 01 15 | Oct 22, 2026 |
| Markel Corporation Group2 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company | 43 | 28 | 01 1503 08 | Jan 9, 2025 |
| Intact Financial Group3 group companies filed it, led by Atlantic Specialty Insurance Company and The Guarantee Company of North America USA | 42 | 37 | 01 15 | Oct 22, 2026 |
| American Family Insurance Group2 group companies filed it, led by Midvale Indemnity Company and Austin Mutual Insurance Company | 21 | 19 | 01 15 | Oct 20, 2023 |
| Tokio Marine Holdings Incorporated GroupU.S. Specialty Insurance Company | 17 | 12 | 01 15 | Jun 30, 2023 |
| WCF Mutual Insurance Company Group2 group companies filed it, led by Associated Indemnity Corporation and WCF National Insurance Company | 16 | 3 | 01 15 | Sep 25, 2026 |
| Triangle Insurance Company, Inc. | 14 | 14 | 01 15 | Jul 24, 2023 |
| Palomar Holdings GroupPalomar Specialty Insurance Company | 10 | 10 | 01 15 | Sep 25, 2025 |
| ACP Insurance Mgmt LLC GroupAccelerant National Insurance Company | 9 | 4 | 01 15 | Apr 4, 2025 |
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States
Number of filings that include IL 09 52 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.
- IL 09 53Exclusion of Certified Acts of Terrorism325 filings
- IL 09 85Disclosure Pursuant to Terrorism Risk Insurance Act220 filings
- IL 09 35Exclusion of Certain Computer- Related Losses189 filings
- IL 00 17Common Policy Conditions173 filings
- IL 09 95Conditional Exclusion of Terrorism (Relating to Disposition of Federal Terrorism Risk Insurance Act)169 filings
- IL 12 01Policy Changes133 filings
- IL 09 86Exclusion of Certified Acts of Terrorism Involving Nuclear, Biological, Chemical or Radiological Terrorism; Cap on Covered Certified Acts Losses131 filings
- IL 00 30Exclusion of Terrorism126 filings
- IL 09 87Limitation of Coverage for Certified Acts of Terrorism (Sub-Limit on Annual Aggregate Basis)122 filings
- IL 00 31Exclusion of Terrorism Involving Nuclear, Biological or Chemical Terrorism120 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Oct 26, 2026 | American Economy Insurance Companyand 5 more | RI | 01 15 | LBRC-135132154 |
| Oct 22, 2026 | Next Insurance US Company | WA | 01 15 | NXUS-G135082225 |
| Oct 22, 2026 | The Guarantee Company of North America USA | CA | 01 15 | SPRO-G135017985 |
| Oct 16, 2026 | American Economy Insurance Companyand 5 more | WY | 01 15 | LBRC-135114827 |
| Sep 25, 2026 | Associated Indemnity Corporation | UT | 01 15 | ADWC-135104118 |
| Sep 14, 2026 | Next Insurance US Company | NJ | 01 15 | NXUS-G135082219 |
| Aug 24, 2026 | AXIS Insurance Company | LA | 01 15 | AXSS-G135065365 |
| Aug 10, 2026 | First National Insurance Company of America | NE | 01 15 | LBRC-135049185 |
| Aug 7, 2026 | First National Insurance Company of America | NE | 01 15 | LBRC-135046802 |
| Aug 6, 2026 | The Guarantee Company of North America USA | SC | 01 15 | SPRO-G134890089 |
| Aug 3, 2026 | Next Insurance US Company | ID | 01 15 | NXUS-G135037776 |
| Aug 3, 2026 | Next Insurance US Company | ID | 01 15 | NXUS-G135037777 |
Most filed ISO IL forms
- IL 00 17 Common Policy Conditions
- IL 12 01 Policy Changes
- IL 00 21 Nuclear Energy Liability Exclusion Endorsement (Broad Form)
- IL DS 00 Common Policy Declarations
- IL 09 85 Disclosure Pursuant to Terrorism Risk Insurance Act
- IL 00 03 Calculation of Premium
- IL 09 53 Exclusion of Certified Acts of Terrorism
- IL 09 98 Disclosure of Premium Through End of Year For Certified Acts of Terrorism Coverage (Pursuant to Terrorism Risk Insurance Act)
- IL 09 35 Exclusion of Certain Computer-Related Losses
- IL 09 99 Disclosure of Premium and Estimated Premium for Certified Acts of Terrorism Coverage (Pursuant to Terrorism Risk Insurance Act)
- IL 09 17 Resident Agent Countersignature Endorsement
- IL 02 70 California Changes - Cancellation And Nonrenewal
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