Coverage description
An Insurance Services Office (ISO) standard form. It adds the person or organization that grants you a license as an additional insured, but only for its liability as the licensor, limited to what the law allows and what your contract requires.
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 limit available to the additional insured now refers to the applicable limits of insurance rather than 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 10 01Coverage for the additional insured now applies only to the extent permitted by law and is no broader than your contract requires.
10 01
Not in this edition
04 13
“only applies to the extent permitted by law”
When a contract requires the coverage, the most paid for the additional insured is the lesser of the contract amount or the available limits.
10 01
Not in this edition
04 13
“whichever is less”
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 | 192 | 90 | 43 | Nov 2021 to Oct 2026 |
| 04 13Apr 2013 | 23 | 21 | 8 | Dec 2021 to Oct 2026 |
| 10 01Oct 2001 | 6 | 9 | 6 | Feb 2022 to Mar 2024 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 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, 34 companies filed the 12 19 edition and 7 companies filed 04 13.
- CG 20 28 (Additional Insured – Lessor of Leased Equipment) is filed alongside it most often, in 213 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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 36, out of 53 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 | 34 | 31 | 12 19 | Oct 26, 2026 |
| United Fire & CAS Group7 group companies filed it, led by United Fire and Casualty Company and Addison Insurance Company | 28 | 27 | 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 |
| 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 |
| Markel Corporation Group2 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company | 9 | 4 | 12 1904 1310 01 | Oct 22, 2026 |
| Tokio Marine Holdings Incorporated Group4 group companies filed it, led by Safety National Casualty Corporation and TNUS Insurance Company | 8 | 2 | 12 19 | Feb 17, 2026 |
| Sompo GroupSompo America Insurance Company | 7 | 2 | 12 19 | Jun 18, 2026 |
| 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 |
| Hastings Mutual Insurance Company | 6 | 5 | 12 19 | Mar 13, 2025 |
How the largest insurers handle CG 20 36
Groups among the largest commercial general liability insurers that filed CG 20 36 or their own version in the past five years.
- Berkshire Hathaway GroupUses CG 20 36 in 1 filing
- WR Berkley Corporation GroupUses CG 20 36 in 1 filing
- Fairfax Financial GroupUses CG 20 36 in 2 filings
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States
Number of filings that include CG 20 36 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 28Additional Insured – Lessor of Leased Equipment213 filings
- CG 20 26Additional Insured – Designated Person or Organization211 filings
- CG 20 15Additional Insured – Vendors210 filings
- CG 20 35Additional Insured – Grantor of Licenses – Automatic Status When Required by Licensor210 filings
- CG 20 24Additional Insured – Owners or Other Interests From Whom Land Has Been Leased187 filings
- CG 20 27Additional Insured – Co-Owner of Insured Premises187 filings
- CG 20 23Additional Insured – Executors, Administrators, Trustees or Beneficiaries186 filings
- CG 20 29Additional Insured – Grantor of Franchise186 filings
- CG 20 11Additional Insured – Managers or Lessors of Premises185 filings
- CG 20 12Additional Insured – State or Governmental Agency or Subdivision or Political Subdivision – Permits or Authorizations185 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 | 12 19 | LBRC-135130111 |
| 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 17, 2026 | Mississippi Farm Bureau Casualty Insurance Company | MS | 12 19 | SFBC-135017175 |
| Aug 10, 2026 | First National Insurance Company of America | NE | 12 19 | LBRC-135047012 |
| Jul 10, 2026 | Southern Farm Bureau Casualty Insurance Company | LA | 12 19 | SFBC-135013358 |
| Jul 9, 2026 | First National Insurance Company of America | MS | 12 19 | LBRC-135012891 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 19 | CHMU-134947220 |
| Jun 26, 2026 | American Economy Insurance Companyand 6 more | LA | 12 19 | LBRC-134964566 |
| Jun 26, 2026 | First National Insurance Company of America | ME | 12 19 | LBRC-134998659 |
| Jun 24, 2026 | Southern Trust Insurance Company | GA | 12 19 | STTR-134864949 |
| Jun 23, 2026 | First National Insurance Company of America | KS | 12 19 | LBRC-134989955 |
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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