Coverage description
An Insurance Services Office (ISO) standard form. It treats autos you lease, hire, rent or borrow with a driver, if shown in the schedule, as covered autos you own for hired auto physical damage, with the limits and deductibles shown in the schedule.
How the form has changed
2 changes across 1 revision, newest first. Each edition is compared with the one before it, using wording from filed copies.
11 20 edition
Nov 2020, compared with 10 13The comprehensive and specified causes of loss deductible now applies either to theft or mischief or vandalism losses or to all perils, and comprehensive no longer waives the deductible for fire or lightning.
10 13
“But No Deductible Applies To Loss Caused By Fire Or Lightning”
11 20
“Covered Auto For Loss Caused By Theft Or Mischief Or Vandalism”
A maximum deductible applies per event: five times the highest comprehensive or specified causes of loss deductible on any one covered auto, regardless of how many autos are damaged or stolen.
10 13
Not in this edition
11 20
“will be equal to five times the highest deductible applicable to any one covered "auto"”
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 09 27Sep 2027Latest | 26 | 1 | 26 | Aug 2026 to Sep 2026 |
| 11 20Nov 2020 | 157 | 112 | 17 | Feb 2022 to Sep 2026 |
| 10 13Oct 2013 | 50 | 38 | 10 | Dec 2021 to Jun 2026 |
| 03 10Mar 2010 | 7 | 4 | 3 | Jun 2022 to Mar 2026 |
2 other edition dates appear in one or two filings each, often carrier-specific versions: 10 01, 11/01/2020.
Where filings record what this form replaced, they name earlier edition 10 13. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 33 companies filed the 11 20 edition and 11 companies filed 10 13.
- The latest edition, 09 27, has been filed by Insurance Services Office, Inc in 26 states since Aug 20, 2026. No carrier filings list it yet.
- CA 00 01 (Business Auto Coverage Form) is filed alongside it most often, in 233 of the same filings (97%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Sep 2026, excluding withdrawn and rejected filings.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 CA 20 33, out of 62 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Nationwide Corporation Group13 group companies filed it, led by Allied Insurance Company of America and Nationwide Mutual Insurance Company | 32 | 9 | 11 2010 13 | Apr 7, 2026 |
| Insurance Services Office, Inc.Advisory Organization | 26 | 26 | 09 27 | Sep 17, 2026 |
| Arch Insurance Group3 group companies filed it, led by Arch Insurance Company and Arch Indemnity Insurance Company | 13 | 2 | 11 20 | Apr 8, 2026 |
| OLD Republic Group4 group companies filed it, led by BITCO General Insurance Corporation and BITCO National Insurance Company | 13 | 1 | 11 20 | May 11, 2026 |
| Liberty Mutual Group7 group companies filed it, led by State Automobile Mutual Insurance Company and Employers Insurance Company of Wausau | 11 | 1 | 10 1311 20 | Jun 17, 2026 |
| Scor GroupGeneral Security National Insurance Company | 10 | 1 | 11 20 | Jun 9, 2026 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company | 9 | 5 | 11 2010 13 | Aug 27, 2026 |
| Markel Corporation Group3 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company | 8 | 4 | 11 2010 13 | Jun 24, 2024 |
| Clear Blue Financial Group2 group companies filed it, led by Rock Ridge Insurance Company and Clear Blue Insurance Company | 7 | 1 | 11 20 | Jun 23, 2025 |
| Alliance Insurance GroupFarmers Alliance Mutual Insurance Company | 6 | 1 | 10 1311 20 | May 19, 2026 |
How the largest insurers handle CA 20 33
Groups among the largest commercial auto insurers that filed CA 20 33 or their own version in the past five years.
- Progressive GroupUses CA 20 33 in 1 filing
- Travelers GroupUses CA 20 33 in 59 filings
- Berkshire Hathaway GroupUses CA 20 33 in 1 filing
See more forms
Search related forms, compare editions, and research carrier filings with FilingFocus.
States
Number of filings that include CA 20 33 in each state, Oct 2021 to Sep 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CA 00 01Business Auto Coverage Form233 filings
- CA 20 15Mobile Equipment206 filings
- CA 99 05Business Interruption Coverage203 filings
- CA 20 01Lessor - Additional Insured and Loss Payee200 filings
- CA 20 71Auto Loan/Lease Gap Coverage198 filings
- CA 20 54Employee Hired Autos195 filings
- CA 23 24Agricultural Produce Trailers - Seasonal192 filings
- CA 23 30Motor Carrier Endorsement192 filings
- CA 99 14Fire, Fire and Theft, Fire, Theft and Windstorm and Limited Specified Causes of Loss Coverages187 filings
- CA 20 06Driving Schools - Non-Owned Autos185 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Sep 17, 2026 | Insurance Services Office, Inc. | CA | 09 27 | ISOF-135093307 |
| Sep 10, 2026 | SECURA Insurance, A Mutual Companyand 1 more | IL | 11 20 | SEIC-135044227 |
| Aug 28, 2026 | Jet Insurance Company | SC | 11 20 | MRTN-134878222 |
| Aug 27, 2026 | Philadelphia Indemnity Insurance Company | NM | 11 20 | PHLX-135063316 |
| Aug 26, 2026 | Insurance Services Office, Inc. | LA | 09 27 | ISOF-135053020 |
| Aug 25, 2026 | Insurance Services Office, Inc. | OK | 09 27 | ISOF-135053037 |
| Aug 21, 2026 | Insurance Services Office, Inc. | AR | 09 27 | ISOF-135052987 |
| Aug 21, 2026 | Insurance Services Office, Inc. | MS | 09 27 | ISOF-135053025 |
| Aug 21, 2026 | Insurance Services Office, Inc. | NJ | 09 27 | ISOF-135053031 |
| Aug 21, 2026 | Insurance Services Office, Inc. | ND | 09 27 | ISOF-135053035 |
| Aug 21, 2026 | Insurance Services Office, Inc. | VT | 09 27 | ISOF-135053047 |
| Aug 20, 2026 | Insurance Services Office, Inc. | AZ | 09 27 | ISOF-135052986 |
Most filed ISO CA forms
- CA DS 03 Business Auto Declarations
- CA DS 21 Motor Carrier Declarations
- CA 00 01 Business Auto Coverage Form
- CA 28 03 Abuse Or Molestation Exclusion For Covered Autos Liability Exposure
- CA 23 17 Truckers - Uniform Intermodal Interchange Endorsement Form UIIE - 1
- CA 04 43 Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation) - Automatic When Required By Written Contract Or Agreement
- CA 04 44 Waiver Of Transfer Of Rights Of Recovery Against Others To Us (Waiver Of Subrogation)
- CA 04 49 Primary and Noncontributory - Other Insurance Condition
- CA 20 01 Lessor - Additional Insured And Loss Payee
- CA 20 48 Designated Insured For Covered Autos Liability Coverage
- CA 00 20 Motor Carrier Coverage Form
- CA 20 71 Auto Loan/Lease Gap Coverage
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