Coverage description
An Insurance Services Office (ISO) standard form. It excludes medical payments coverage for inmates, patients or prisoners treated, cared for, detained or imprisoned at the scheduled locations, and for medical services provided by you, your employees or your contractors.
How the form has changed
1 change across 1 revision, newest first. Each edition is compared with the one before it, using wording from filed copies.
12 25 edition
Dec 2025, compared with 10 93Latest editionThe inmate, patient or prisoner exclusion now applies at specific locations described in the schedule, rather than to scheduled facility types such as health care facilities, halfway houses or penal institutions.
10 93
“of the facilities shown in the Schedule.”
12 25
“imprisoned in any location shown in the Schedule.”
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 12 25Dec 2025Latest | 62 | 17 | 39 | Jul 2024 to Aug 2026 |
| 10 93Oct 1993 | 142 | 79 | 30 | Nov 2021 to Oct 2026 |
Where filings record what this form replaced, they name earlier edition 10 93. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 22 companies filed the 10 93 edition and 12 companies filed 12 25.
- The newer 12 25 edition first appears Jul 12, 2024 and has been filed by 17 companies in 39 states so far.
- CG 22 29 (Exclusion - Property Entrusted) is filed alongside it most often, in 188 of the same filings (93%).
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Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Oct 2026, excluding withdrawn and rejected filings.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 22 52, out of 50 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Insurance Services Office, Inc.Advisory Organization | 37 | 37 | 12 25 | Apr 9, 2025 |
| Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company | 19 | 17 | 12 2510 93 | Aug 26, 2026 |
| WCF Mutual Insurance Company GroupAssociated Indemnity Corporation | 17 | 17 | 10 93 | Sep 3, 2026 |
| Nationwide Corporation Group8 group companies filed it, led by Nationwide Mutual Insurance Company and Allied Insurance Company of America | 12 | 4 | 10 93 | Feb 12, 2025 |
| Markel Corporation Group3 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company | 9 | 5 | 10 93 | Oct 22, 2026 |
| Siriuspoint GroupSiriusPoint America Insurance Company | 9 | 3 | 10 9312 25 | Jun 15, 2026 |
| Berkshire Hathaway Group2 group companies filed it, led by Berkshire Hathaway Homestate Insurance Company and Redwood Fire and Casualty Insurance Company | 7 | 7 | 10 93 | Jan 9, 2023 |
| Starr Group2 group companies filed it, led by Starr Indemnity and Liability Company and Starr Specialty Insurance Company | 6 | 4 | 10 93 | Sep 8, 2025 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 5 | 2 | 10 93 | Jun 26, 2026 |
| Sompo GroupSompo America Insurance Company | 5 | 1 | 10 93 | Jun 18, 2026 |
How the largest insurers handle CG 22 52
Groups among the largest commercial general liability insurers that filed CG 22 52 or their own version in the past five years.
- Berkshire Hathaway GroupUses CG 22 52 in 7 filings
- WR Berkley Corporation GroupUses CG 22 52 in 1 filing
- Fairfax Financial GroupUses CG 22 52 in 2 filings
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States
Number of filings that include CG 22 52 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 29Exclusion - Property Entrusted188 filings
- CG 22 47Exclusion - Saline Substances Contamination183 filings
- CG 22 57Exclusion - Underground Resources and Equipment182 filings
- CG 22 40Exclusion - Medical Payments - Day Care Centers181 filings
- CG 22 68Operation of Customers Autos on Particular Premises174 filings
- CG 22 87Exclusion - Adult Day Care Centers174 filings
- CG 22 56Exclusion - Injury to Volunteer Firefighters173 filings
- CG 22 76Professional Liability Exclusion - Health or Exercise Clubs or Commercially Operated Health or Exercise Facilities173 filings
- CG 22 88Professional Liability Exclusion - Electronic Data Processing Services and Computer Consulting or Programming Services169 filings
- CG 21 66Exclusion - Volunteer Workers as Insureds168 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 | 10 93 | STNA-135128706 |
| Oct 6, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CA | 10 93 | CNAB-135091690 |
| Sep 3, 2026 | Associated Indemnity Corporation | TX | 10 93 | ADWC-135065831 |
| Aug 26, 2026 | The Cincinnati Casualty Companyand 2 more | NV | 12 25 | CNNA-134980601 |
| Aug 26, 2026 | The Cincinnati Casualty Companyand 2 more | ID | 12 25 | CNNA-134992231 |
| Aug 17, 2026 | Mississippi Farm Bureau Casualty Insurance Company | MS | 10 93 | SFBC-135017175 |
| Jul 10, 2026 | Southern Farm Bureau Casualty Insurance Company | LA | 10 93 | SFBC-135013358 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 10 93 | CHMU-134947220 |
| Jun 18, 2026 | Sompo America Insurance Company | CO | 10 93 | SMPJ-134985965 |
| Jun 17, 2026 | Atlantic Specialty Insurance Company | NM | 12 2510 93 | BEAC-134983795 |
| Jun 17, 2026 | Atlantic Specialty Insurance Company | SC | 10 93 | BEAC-134983796 |
| Jun 15, 2026 | SiriusPoint America Insurance Company | CO | 10 93 | MRTN-134978899 |
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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