ISO notice or disclosure · interline (shared across commercial lines)

IL 09 99 Disclosure of Premium and Estimated Premium for Certified Acts of Terrorism Coverage (Pursuant to Terrorism Risk Insurance Act)

Filings
241
latest Oct 22, 2026
Filing companies
97
47 carrier groups
States
35
including DC
Latest edition
12 20
Dec 2020

Coverage description

An Insurance Services Office (ISO) standard form. Disclosure of the premium for certified terrorism coverage through year end and the estimated premium beyond that date, the federal share of terrorism losses, the $100 billion annual cap, and possible premium adjustments if the federal program changes.

How the form has changed

3 changes across 2 revisions, newest first. Each edition is compared with the one before it, using wording from filed copies.

  1. 12 20 edition

    Dec 2020, compared with 01 15Latest edition
    • The schedule now states a fixed 80% federal share of terrorism losses instead of blank percentages by year.

      01 15

      “Federal share of terrorism losses ____ % Year: 20”

      12 20

      “Federal share of terrorism losses 80 %”

  2. 01 15 edition

    Jan 2015, compared with 01 07
    • The federal share is now the percentage shown in the schedule or declarations, replacing the stated 90% and 85% shares for 2006 and 2007 losses.

      01 07

      “For losses occurring in 2006, the federal share equals 90%”

      01 15

      “The federal share equals a percentage (as shown in Part II of the Schedule”

    • Adds the $100 billion annual cap on Treasury payments and on the insurer's payment of certified terrorism losses once its deductible is met.

      01 07

      Not in this edition

      01 15

      “Act exceed $100 billion in a calendar year and we have met our insurer deductible”

Editions

Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.

EditionFilingsCompaniesStatesFiled
12 20Dec 2020Latest2108435Dec 2021 to Oct 2026
01 15Jan 201519205Jan 2022 to Jun 2026
01 07Jan 20071073Jun 2022 to Jun 2026

Filed by one company only: 05 04 (6 filings).

Where filings record what this form replaced, they name other forms IL 09 98. Only some filings record replacements.

What the filings show

  • Edition in use: in the past 12 months, 32 companies filed the 12 20 edition and 5 companies filed 01 07.
  • The 05 04 edition appears only in filings from one company (6 filings in 1 state since Dec 30, 2022), which suggests a carrier-specific version.
  • IL 09 85 (Disclosure Pursuant to Terrorism Risk Insurance Act) is filed alongside it most often, in 232 of the same filings (96%).

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 99, out of 47 in total.

CarrierFilingsStatesEditions, most filed firstLast filed
Siriuspoint GroupSiriusPoint America Insurance Company392912 20Jun 15, 2026
Nationwide Corporation Group9 group companies filed it, led by Nationwide Agribusiness Insurance Company and Nationwide Mutual Insurance Company22512 2001 15Jun 30, 2026
WCF Mutual Insurance Company Group2 group companies filed it, led by Associated Indemnity Corporation and WCF National Insurance Company16312 20Sep 25, 2026
Sompo GroupSompo America Insurance Company14212 2001 15Jun 18, 2026
Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company12312 20Aug 11, 2026
Markel Corporation Group2 group companies filed it, led by State National Insurance Company, Inc. and National Specialty Insurance Company11612 2001 07Oct 22, 2026
ACP Insurance Mgmt LLC GroupAccelerant National Insurance Company9612 20Dec 8, 2025
Amtrust Financial Services Group9 group companies filed it, led by First Nonprofit Insurance Company and Republic Fire and Casualty Insurance Company9112 2001 15Oct 15, 2026
OLD Republic Group3 group companies filed it, led by BITCO General Insurance Corporation and BITCO National Insurance Company9112 20May 11, 2026
Church Mutual Group2 group companies filed it, led by Church Mutual Insurance Company, S.I. and CM Regent Insurance Company8312 2001 15Jun 26, 2026

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States

Number of filings that include IL 09 99 in each state, Oct 2021 to Oct 2026. Darker states have more filings.

Tennessee: 0 filingsTNAlabama: 1 filingAL1Florida: 0 filingsFLGeorgia: 2 filingsGA2Oklahoma: 1 filingOK1South Carolina: 19 filingsSC19Arkansas: 1 filingAR1Missouri: 1 filingMO1Indiana: 2 filingsIN2Louisiana: 1 filingLA1Ohio: 1 filingOH1Wisconsin: 2 filingsWI2Texas: 0 filingsTXKentucky: 1 filingKY1Iowa: 0 filingsIAKansas: 2 filingsKS2Mississippi: 0 filingsMSNorth Carolina: 1 filingNC1Nebraska: 1 filingNE1South Dakota: 1 filingSD1Montana: 2 filingsMT2New Hampshire: 1 filingNH1Virginia: 2 filingsVA2Arizona: 0 filingsAZPennsylvania: 0 filingsPARhode Island: 0 filingsRIMichigan: 0 filingsMIAlaska: 1 filingAK1District of Columbia: 1 filingDC1Idaho: 8 filingsID8Maryland: 0 filingsMDWest Virginia: 1 filingWV1Utah: 7 filingsUT7Wyoming: 6 filingsWY6Delaware: 0 filingsDENew Mexico: 2 filingsNM2Colorado: 58 filingsCO58Connecticut: 0 filingsCTMaine: 0 filingsMENorth Dakota: 0 filingsNDIllinois: 12 filingsIL12Minnesota: 0 filingsMNNew Jersey: 0 filingsNJNew York: 1 filingNY1Massachusetts: 1 filingMA1Washington: 11 filingsWA11Oregon: 6 filingsOR6Vermont: 1 filingVT1California: 77 filingsCA77Nevada: 5 filingsNV5Hawaii: 1 filingHI1
FewerMore filingsNone

Often filed with

Standard-style form numbers that appear in the same filings most often.

  • IL 09 85Disclosure Pursuant to Terrorism Risk Insurance Act232 filings
  • IL 09 98Disclosure of Premium Through End of Year for Certified Acts of Terrorism Coverage (Pursuant to Terrorism Risk Insurance Act)201 filings
  • IL 00 17Common Policy Conditions162 filings
  • IL 00 03Calculation of Premium118 filings
  • IL 12 01Policy Changes102 filings
  • CG 04 35Employee Benefits Liability Coverage79 filings
  • CG 21 70Cap on Losses From Certified Acts of Terrorism79 filings
  • CG 20 27Additional Insured - Co-Owner of Insured Premises76 filings
  • CG 20 01Primary and Noncontributory - Other Insurance Condition75 filings
  • CG 21 37Exclusion - Employees and Volunteer Workers as Insureds75 filings

Recent filings

Latest filings that include this form number. Filed copies open in FilingFocus.

SubmittedCompanyStateEditionsTracking number
Oct 22, 2026State National Insurance Company, Inc.CO12 20STNA-135128706
Oct 15, 2026Security National Insurance Companyand 2 moreCA12 20UNKP-135059588
Oct 6, 2026American Casualty Company of Reading, Pennsylvaniaand 5 moreCA12 20CNAB-135091690
Sep 25, 2026Associated Indemnity CorporationUT12 20ADWC-135104118
Aug 11, 2026Philadelphia Indemnity Insurance CompanySC12 20PHLX-135041545
Jul 22, 2026Star Insurance CompanySC12 20ACCD-G134876003
Jul 10, 2026Trisura Insurance CompanyWA12 20SHNF-134976660
Jul 4, 2026The Medical Protective Companyand 1 moreIL12 20MDPC-135004347
Jul 2, 2026Zenith Insurance CompanyCA12 20ZICO-134998423
Jun 30, 2026The Medical Protective Companyand 1 moreIL12 20MDPC-135002488
Jun 30, 2026Crestbrook Insurance Companyand 1 moreCO12 20NWPP-135003098
Jun 30, 2026Trisura Insurance CompanyIL12 20SHNF-134983369

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