Coverage description
An Insurance Services Office (ISO) standard form. It excludes umbrella coverage for bodily injury, property damage and personal and advertising injury arising from work on exterior insulation and finish systems (EIFS), or from your products or work on exterior parts of a structure that uses such a system.
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.
06 26 edition
Jun 2026, compared with 12 04Latest editionThe definition of an exterior insulation and finish system is broadened: it now includes the listed components rather than consisting of them, and the board may be made of polystyrene or other materials.
12 04
“and consisting of:”
06 26
“and which includes:”
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 06 26Jun 2026Latest | 27 | 2 | 26 | Sep 2025 to Feb 2026 |
| 12 04Dec 2004 | 54 | 38 | 14 | May 2022 to Aug 2026 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 01 15.
Where filings record what this form replaced, they name earlier edition 12 04. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 16 companies filed the 12 04 edition and 2 companies filed 06 26.
- CU 00 01 (Commercial Liability Umbrella Coverage Form) is filed alongside it most often, in 78 of the same filings (95%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Aug 2026, excluding withdrawn and rejected filings.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 CU 21 42, out of 25 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Insurance Services Office, Inc.Advisory Organization | 26 | 26 | 06 26 | Jan 14, 2026 |
| Nationwide Corporation Group4 group companies filed it, led by Crestbrook Insurance Company and Nationwide Agribusiness Insurance Company | 7 | 3 | 12 04 | Jun 30, 2026 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company | 7 | 3 | 12 0406 26 | Aug 11, 2026 |
| 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 15, 2026 |
| James River GroupFalls Lake National Insurance Company | 4 | 4 | 12 04 | Jan 13, 2023 |
| AU Holding Company GroupContinental Indemnity Company | 3 | 3 | 12 04 | May 3, 2024 |
| American European Group2 group companies filed it, led by American European Insurance Company and Rutgers Casualty Ins Co | 2 | 2 | 12 04 | Apr 17, 2023 |
| American Family Insurance GroupMidvale Indemnity Company | 2 | 2 | 12 04 | Sep 28, 2023 |
| Berkshire Hathaway Group2 group companies filed it, led by The Medical Protective Company and Wellfleet Insurance Company | 2 | 2 | 12 04 | Jun 30, 2026 |
How the largest insurers handle CU 21 42
Groups among the largest commercial umbrella and excess insurers that filed CU 21 42 or their own version in the past five years.
- Chubb Limited GroupUses CU 21 42 in 1 filing
- Berkshire Hathaway GroupUses CU 21 42 in 1 filing
- Fairfax Financial GroupUses CU 21 42 in 1 filing
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States
Number of filings that include CU 21 42 in each state, Oct 2021 to Aug 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CU 00 01Commercial Liability Umbrella Coverage Form78 filings
- CU 22 01Exclusion – Property Entrusted76 filings
- CU 22 13Exclusion – Underground Resources And Equipment74 filings
- CU 21 15Exclusion – Financial Services73 filings
- CU 22 05Exclusion - Housing Projects Sites73 filings
- CU 22 24Exclusion – Telecommunication Equipment Or Service Providers Errors And Omissions73 filings
- CU 22 94Professional Liability Exclusion – Computer, Telecommunication, Electronic Data Or Internet Services (formerly titled Professional Liability Exclusion – Electronic Data Processing Services And Computer Consulting Or Programming Services)72 filings
- CU 22 08Exclusion – Saline Substances Contamination71 filings
- CU 22 17Stevedoring Operations – Products-Completed Operations Hazard Redefined69 filings
- CU 22 85Exclusion – Internet Service Providers And Internet Access Providers Errors And Omissions69 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Aug 12, 2026 | Colonial Surety Company | SC | 12 04 | MRTN-134978915 |
| Aug 11, 2026 | Philadelphia Indemnity Insurance Company | SC | 12 04 | PHLX-135041545 |
| Jul 2, 2026 | Zenith Insurance Company | CA | 12 04 | ZICO-134998423 |
| Jun 30, 2026 | The Medical Protective Companyand 1 more | IL | 12 04 | MDPC-135002488 |
| Jun 30, 2026 | Crestbrook Insurance Companyand 1 more | CO | 12 04 | NWPP-135003098 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 04 | CHMU-134995025 |
| Jun 24, 2026 | CopperPoint Casualty Insurance Companyand 1 more | SC | 12 04 | COPP-134996381 |
| Jun 19, 2026 | Addison Insurance Companyand 1 more | CO | 12 04 | UNFG-134979875 |
| Jun 15, 2026 | Sompo America Insurance Company | CO | 12 04 | SMPJ-134971280 |
| Jun 2, 2026 | Philadelphia Indemnity Insurance Company | IL | 12 04 | PHLX-134967828 |
| May 13, 2026 | Alaska National Insurance Company | SC | 12 04 | ALNI-134947655 |
| Feb 17, 2026 | Safety National Casualty Corporation | CO | 06 26 | SFCC-134815068 |
Most filed ISO CU forms
- CU 34 54 Exclusion - Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS)
- CU 21 86 Exclusion – Access Or Disclosure Of Confidential Or Personal Material Or Information
- CU 00 05 Exclusion - Violation of Law Addressing Data Privacy
- CU 34 56 Exclusion – Cyber Incident
- CU DS 01 Commercial Liability Umbrella Declarations
- CU 21 88 Exclusion - Access Or Disclosure Of Confidential Or Personal Material Or Information (Coverage B Only)
- CU 34 44 Broad Abuse or Molestation Exclusion
- CU 34 55 Exclusion - Electronic Data - Deletion Of Bodily Injury Exception
- CU 22 37 Motor Carrier Endorsement
- CU 21 87 Exclusion - Access Or Disclosure Of Confidential Or Personal Information and Data-Related Liability - Limited Bodily Injury Exception Not Included
- CU 04 02 Loss Of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion
- CU 04 54 Loss of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion - Deletion Of Bodily Injury Exception
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