Coverage description
An Insurance Services Office (ISO) standard form. It automatically adds equipment lessors as additional insureds when your written lease requires it, for injury or damage caused by your maintenance, operation or use of the leased equipment, limited to the lesser of the required or available limits.
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.
12 19 edition
Dec 2019, compared with 04 13Latest editionThe cap on the lessor's limit now refers to the applicable limits of insurance available instead of the limits shown in the declarations.
04 13
“Available under the applicable Limits of Insurance shown in the Declarations”
12 19
“Available under the applicable limits of insurance;”
04 13 edition
Apr 2013, compared with 07 04Coverage for the lessor now applies only to the extent permitted by law and is no broader than what your lease agreement requires.
07 04
Not in this edition
04 13
“Will not be broader than that which you are required by the contract or agreement to provide for such additional insured”
Adds a limit: the most paid for the lessor is the lesser of the amount the agreement requires or the available limits.
07 04
Not in this edition
04 13
“The most we will pay on behalf of the additional insured is the amount of insurance”
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 12 19Dec 2019Latest | 164 | 83 | 40 | Nov 2021 to Oct 2026 |
| 04 13Apr 2013 | 22 | 20 | 6 | Dec 2021 to Oct 2026 |
| 07 04Jul 2004 | 6 | 4 | 6 | Jun 2022 to Mar 2024 |
3 other edition dates appear in one or two filings each, often carrier-specific versions: 05 20, 03 97, 10/1/2020.
Where filings record what this form replaced, they name earlier edition 04 13. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 26 companies filed the 12 19 edition and 7 companies filed 04 13.
- CG 20 26 (Additional Insured – Designated Person or Organization) is filed alongside it most often, in 184 of the same filings (98%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 20 34, out of 49 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| United Fire & CAS Group7 group companies filed it, led by United Fire and Casualty Company and Addison Insurance Company | 29 | 28 | 12 19 | Dec 28, 2022 |
| Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company | 16 | 16 | 12 19 | Oct 23, 2023 |
| WCF Mutual Insurance Company GroupAssociated Indemnity Corporation | 16 | 16 | 12 19 | Jan 15, 2026 |
| Markel Corporation Group2 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company | 10 | 4 | 12 1904 1307 04 | Oct 22, 2026 |
| Nationwide Corporation Group8 group companies filed it, led by Allied Insurance Company of America and Nationwide Agribusiness Insurance Company | 10 | 3 | 04 1312 19 | Feb 12, 2025 |
| Tokio Marine Holdings Incorporated Group5 group companies filed it, led by Safety National Casualty Corporation and TNUS Insurance Company | 9 | 2 | 12 19 | Feb 17, 2026 |
| Sompo GroupSompo America Insurance Company | 7 | 2 | 12 19 | Jun 18, 2026 |
| Starr Group2 group companies filed it, led by Starr Indemnity and Liability Company and Starr Specialty Insurance Company | 7 | 2 | 12 1907 0410/1/2020 | Apr 13, 2026 |
| ACP Insurance Mgmt LLC GroupAccelerant National Insurance Company | 6 | 2 | 12 1904 13 | Dec 8, 2025 |
| Grange Mutual CAS Group3 group companies filed it, led by Grange Indemnity Insurance Company and Grange Insurance Company | 6 | 6 | 12 19 | Mar 28, 2024 |
How the largest insurers handle CG 20 34
Groups among the largest commercial general liability insurers that filed CG 20 34 or their own version in the past five years.
- Berkshire Hathaway GroupUses CG 20 34 in 1 filing
- WR Berkley Corporation GroupUses CG 20 34 in 1 filing
- Fairfax Financial GroupUses CG 20 34 in 2 filings
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States
Number of filings that include CG 20 34 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 20 26Additional Insured – Designated Person or Organization184 filings
- CG 20 28Additional Insured – Lessor of Leased Equipment183 filings
- CG 20 15Additional Insured – Vendors181 filings
- CG 20 35Additional Insured – Grantor of Licenses – Automatic Status When Required by Licensor172 filings
- CG 20 32Additional Insured – Engineers, Architects or Surveyors Not Engaged by the Named Insured171 filings
- CG 20 36Additional Insured – Grantor of Licenses169 filings
- CG 20 11Additional Insured – Managers or Lessors of Premises157 filings
- CG 20 18Additional Insured – Mortgagee, Assignee or Receiver153 filings
- CG 20 12Additional Insured - State or Governmental Agency or Subdivision or Political Subdivision - Permits or Authorizations152 filings
- CG 24 04Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)152 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 | 12 19 | STNA-135128706 |
| Oct 6, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CA | 12 1904 13 | CNAB-135091690 |
| Aug 20, 2026 | New York Marine and General Insurance Company | SC | 12 19 | PERR-135060921 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 19 | CHMU-134947220 |
| Jun 24, 2026 | Southern Trust Insurance Company | GA | 12 19 | STTR-134864949 |
| Jun 18, 2026 | Sompo America Insurance Company | CO | 12 19 | SMPJ-134985965 |
| Jun 17, 2026 | Atlantic Specialty Insurance Company | NM | 12 1904 13 | BEAC-134983795 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 12 19 | MRTN-134978899 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 12 19 | MRTN-134978902 |
| Jun 2, 2026 | Zenith Insurance Company | CA | 12 19 | ZICO-134965759 |
| May 15, 2026 | Hyundai Marine and Fire Insurance Company Ltd. | CA | 12 19 | PERR-134950481 |
| Apr 30, 2026 | Trisura Insurance Company | CA | 12 19 | SHNF-134881681 |
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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