Coverage description
An Insurance Services Office (ISO) standard form. It adapts owners and contractors protective liability coverage for a designated construction project, covering an owner, contractor, architect or construction manager for injury from the contractor's operations and their general supervision, and adds a professional services exclusion.
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 04 13Apr 2013Latest | 86 | 48 | 23 | Nov 2021 to Oct 2026 |
1 other edition date appears in one or two filings each, often carrier-specific versions: 10 01.
What the filings show
- Edition in use: in the past 12 months, 15 companies filed the 04 13 edition.
- CG 22 70 (Real Estate Property Managed) is filed alongside it most often, in 87 of the same filings (100%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 31 15, out of 28 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company | 17 | 17 | 04 13 | Jan 4, 2023 |
| Nationwide Corporation Group7 group companies filed it, led by Allied Insurance Company of America and Nationwide Insurance Company of America | 8 | 3 | 04 13 | Feb 12, 2025 |
| Markel Corporation GroupState National Insurance Company, Inc. | 7 | 3 | 04 1310 01 | Oct 22, 2026 |
| Siriuspoint GroupSiriusPoint America Insurance Company | 7 | 3 | 04 13 | Jun 15, 2026 |
| Sompo GroupSompo America Insurance Company | 5 | 1 | 04 13 | Jun 18, 2026 |
| Tokio Marine Holdings Incorporated GroupSafety National Casualty Corporation | 5 | 1 | 04 13 | Feb 17, 2026 |
| Axis Capital GroupAXIS Insurance Company | 4 | 1 | 04 13 | Apr 11, 2025 |
| ACP Insurance Mgmt LLC GroupAccelerant National Insurance Company | 3 | 2 | 04 13 | Dec 8, 2025 |
| CNA Insurance Group6 group companies filed it, led by American Casualty Company of Reading, Pennsylvania and Continental Casualty Company | 3 | 3 | 04 13 | Oct 6, 2026 |
| Clear Blue Financial GroupClear Blue Insurance Company | 3 | 2 | 04 13 | Nov 12, 2025 |
How the largest insurers handle CG 31 15
Groups among the largest commercial general liability insurers that filed CG 31 15 or their own version in the past five years.
- Fairfax Financial GroupUses CG 31 15 in 1 filing
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States
Number of filings that include CG 31 15 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 22 70Real Estate Property Managed87 filings
- CG 28 07Principals Protective Liability Coverage84 filings
- CG 28 12Pesticide or Herbicide Applicator - Limited Pollution Coverage84 filings
- CG 21 35Exclusion - Coverage C - Medical Payments82 filings
- CG 21 45Exclusion - Damage to Premises Rented to You82 filings
- CG 21 39Contractual Liability Limitation (for Use with Cgl and Products Policies)81 filings
- CG 21 50Amendment of Liquor Liability Exclusion81 filings
- CG 21 51Amendment of Liquor Liability Exclusion - Exception for Scheduled Premises or Activities81 filings
- CG 22 58Exclusion - Described Hazards (Carnivals, Circuses and Fairs)81 filings
- CG 22 73Exclusion - Oil or Gas Producing Operations81 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 | 04 13 | STNA-135128706 |
| Oct 6, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CA | 04 13 | CNAB-135091690 |
| Jun 18, 2026 | Sompo America Insurance Company | CO | 04 13 | SMPJ-134985965 |
| Jun 17, 2026 | Atlantic Specialty Insurance Company | NM | 04 13 | BEAC-134983795 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 04 13 | MRTN-134978899 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 04 13 | MRTN-134978902 |
| Mar 20, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CO | 04 13 | CNAB-134872676 |
| Feb 24, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | SC | 04 13 | CNAB-134851008 |
| Feb 17, 2026 | Safety National Casualty Corporation | CO | 04 13 | SFCC-134814522 |
| Feb 6, 2026 | Crum and Forster Indemnity Company | CA | 04 13 | CRUM-134831877 |
| Dec 9, 2025 | Universal North America Insurance Company | SC | 04 13 | UNAC-134760136 |
| Dec 8, 2025 | Accelerant National Insurance Company | CA | 04 13 | MRTN-134722366 |
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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