Coverage description
An Insurance Services Office (ISO) standard form. Declarations page for the Commercial Liability Umbrella Coverage Part, showing the named insured, policy period, umbrella limits, self-insured retention, premium and the schedule of underlying insurance with its minimum required limits.
How the form has changed
The 09 18, 12 20 and 06 26 editions change the layout and the underlying insurance entries in the schedule. The declarations work the same way.
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 | 25 | 1 | 25 | Sep 2025 to Jan 2026 |
| 12 20Dec 2020 | 56 | 19 | 39 | Nov 2021 to Aug 2026 |
| 09 18Sep 2018 | 9 | 5 | 8 | Mar 2022 to Feb 2024 |
| 01 18Jan 2018 | 34 | 2 | 24 | Nov 2021 to Aug 2022 |
| 09 00Sep 2000 | 3 | 2 | 3 | Jan 2026 to Sep 2026 |
Filed by one company only: 01 24 (Nationwide Corporation Group, 34 filings).
Where filings record what this form replaced, they name earlier editions CU DS 01 0918, CU DS 01 1220 and other forms 8-1586. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 7 companies filed the 12 20 edition and 2 companies filed 09 00.
- The latest edition, 06 26, has been filed by Insurance Services Office, Inc in 25 states since Sep 12, 2025. No carrier filings list it yet.
- The 01 24 edition appears only in filings from Nationwide Corporation Group (34 filings in 34 states since Oct 5, 2023), which suggests a carrier-specific version.
- CXDS01 (Commercial Excess Liability Declarations) is filed alongside it most often, in 72 of the same filings (45%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Sep 2026, excluding withdrawn and rejected filings.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 DS 01, out of 12 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Nationwide Corporation Group2 group companies filed it, led by Nationwide Mutual Insurance Company and Nationwide Agribusiness Insurance Company | 68 | 35 | 01 1801 24 | Dec 20, 2023 |
| QBE Insurance Group4 group companies filed it, led by North Pointe Insurance Company and Praetorian Insurance Company | 46 | 41 | 12 2009 18 | Jun 30, 2026 |
| Insurance Services Office, Inc.Advisory Organization | 30 | 27 | 06 2612 20 | Jan 14, 2026 |
| Church Mutual Group2 group companies filed it, led by Church Mutual Insurance Company, S.I. and CM Regent Insurance Company | 6 | 3 | 12 20 | Jun 26, 2026 |
| Central Mutual Insurance Company Group2 group companies filed it, led by Central Mutual Insurance Company and All America Insurance Company | 3 | 3 | 09 00 | Sep 14, 2026 |
| Tokio Marine Holdings Incorporated GroupPhiladelphia Indemnity Insurance Company | 2 | 2 | 12 20 | Aug 11, 2026 |
| Ally Insurance Holdings GroupMotors Insurance Corporation | 1 | 1 | 09 18 | Feb 27, 2024 |
| BCBS OF MI GroupStar Insurance Company | 1 | 1 | 12 20 | Jun 25, 2026 |
| Hawaii Insurance Bureau, Inc. | 1 | 1 | 12 20 | May 20, 2022 |
| Munich RE Group3 group companies filed it, led by American Alternative Insurance Corporation and American Family Home Insurance Company | 1 | 1 | 12 20 | Aug 25, 2022 |
How the largest insurers handle CU DS 01
Groups among the largest commercial umbrella and excess insurers that filed CU DS 01 or their own version in the past five years.
- Berkshire Hathaway GroupFiles its own version: CUP DS 01 Commercial Liability Umbrella Declarations (18 states)
- WR Berkley Corporation GroupFiles its own version: B CU DS01 Commercial Liability Umbrella Declarations (37 states)
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States
Number of filings that include CU DS 01 in each state, Oct 2021 to Sep 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CXDS01Commercial Excess Liability Declarations72 filings
- CUDS02Change of Declarations Endorsement68 filings
- CU 21 86Exclusion – Access Or Disclosure Of Confidential Or Personal Material Or Information40 filings
- CU 34 22Cannabis Exclusion39 filings
- CU 34 23Cannabis Exclusion With Hemp Exception38 filings
- CU 34 24Cannabis Exclusion With Hemp And Lessors Risk Exceptions38 filings
- CU 23 02Cannabis Exclusion With Hemp Exception Subject To Hemp Aggregate Limit35 filings
- CU 00 01Commercial Liability Umbrella Coverage Form34 filings
- CU 21 15Exclusion – Financial Services33 filings
- CU 22 01Exclusion – Property Entrusted33 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Sep 14, 2026 | Central Mutual Insurance Company | MT | 09 00 | CEMC-135086445 |
| Sep 14, 2026 | Central Mutual Insurance Company | OR | 09 00 | CEMC-135086700 |
| Aug 11, 2026 | Philadelphia Indemnity Insurance Company | SC | 12 20 | PHLX-135041545 |
| Jun 30, 2026 | North Pointe Insurance Companyand 3 more | CO | 12 20 | QBEC-134991156 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 20 | CHMU-134995025 |
| Jun 25, 2026 | Star Insurance Company | OK | 12 20 | ACCD-G134875998 |
| Jun 2, 2026 | Philadelphia Indemnity Insurance Company | IL | 12 20 | PHLX-134967828 |
| Jan 26, 2026 | All America Insurance Companyand 1 more | GA | 09 00 | CEMC-134814439 |
| Jan 14, 2026 | Insurance Services Office, Inc. | VA | 06 26 | ISOF-134799407 |
| Sep 30, 2025 | Insurance Services Office, Inc. | GA | 06 26 | ISOF-134687840 |
| Sep 16, 2025 | Insurance Services Office, Inc. | VT | 06 26 | ISOF-134664793 |
| Sep 15, 2025 | Insurance Services Office, Inc. | LA | 06 26 | ISOF-134664766 |
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 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
- CU 00 01 Commercial Liability Umbrella Coverage Form
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