Coverage description
An Insurance Services Office (ISO) standard form. It adds a state or government agency that issued you a permit for premises you own, rent or control as an additional insured, but only for hazards such as signs, awnings, sidewalk vaults and elevators covered by the permit.
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 05 09Coverage for the additional insured now applies only to the extent permitted by law and is no broader than your contract requires.
05 09
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.
05 09
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 | 179 | 92 | 41 | Nov 2021 to Oct 2026 |
| 04 13Apr 2013 | 24 | 18 | 9 | Dec 2021 to Jun 2026 |
| 05 09May 2009 | 6 | 3 | 6 | Jun 2022 to Feb 2023 |
| 11 85Nov 1985 | 4 | 7 | 4 | Feb 2022 to Mar 2024 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 05 20.
Where filings record what this form replaced, they name earlier edition 04 13 and other forms CG 20 12, CG 20 19. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 41 companies filed the 12 19 edition and 1 company filed 04 13.
- CG 20 18 (Additional Insured – Mortgagee, Assignee or Receiver) is filed alongside it most often, in 206 of the same filings (97%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 13, out of 51 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 |
| 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 Nationwide Agribusiness Insurance Company and Nationwide Insurance Company of America | 14 | 4 | 04 1312 19 | Oct 21, 2026 |
| Markel Corporation Group2 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company | 10 | 4 | 12 1904 1305 09 | Oct 22, 2026 |
| 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 |
| Amerisure Company Group2 group companies filed it, led by AMERISURE INSURANCE COMPANY and AMERISURE MUTUAL INSURANCE COMPANY | 6 | 3 | 12 1904 13 | Apr 29, 2024 |
| 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 13
Groups among the largest commercial general liability insurers that filed CG 20 13 or their own version in the past five years.
- Berkshire Hathaway GroupUses CG 20 13 in 2 filings
- WR Berkley Corporation GroupUses CG 20 13 in 1 filing
- Fairfax Financial GroupUses CG 20 13 in 2 filings
See more forms
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States
Number of filings that include CG 20 13 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 18Additional Insured – Mortgagee, Assignee or Receiver206 filings
- CG 20 11Additional Insured – Managers or Lessors of Premises205 filings
- CG 20 26Additional Insured – Designated Person or Organization204 filings
- CG 20 27Additional Insured – Co-Owner of Insured Premises202 filings
- CG 20 05Additional Insured – Controlling Interest201 filings
- CG 20 12Additional Insured – State or Governmental Agency or Subdivision or Political Subdivision – Permits or Authorizations196 filings
- CG 20 15Additional Insured – Vendors193 filings
- CG 20 24Additional Insured – Owners or Other Interests From Whom Land Has Been Leased193 filings
- CG 20 28Additional Insured – Lessor of Leased Equipment193 filings
- CG 20 17Additional Insured – Unit-Owners of Townhouse or Homeowner Associations192 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 21, 2026 | Allied Insurance Company of Americaand 4 more | CA | 12 19 | NWPP-G135131050 |
| Oct 6, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CA | 12 19 | 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 10, 2026 | Trisura Insurance Company | WA | 12 19 | SHNF-134976660 |
| Jul 9, 2026 | First National Insurance Company of America | MS | 12 19 | LBRC-135012891 |
| Jun 30, 2026 | Trisura Insurance Company | IL | 12 19 | SHNF-134983369 |
| 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 |
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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