ISO endorsement · commercial auto

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

Filings
431
latest Sep 10, 2026
Filing companies
164
66 carrier groups
States
50
including DC
Latest edition
12 23
Dec 2023

Coverage description

An Insurance Services Office (ISO) standard form. It waives the insurer's right to recover from anyone you agreed to waive it for in a written contract made before the accident or loss, without naming them in a schedule.

How the form has changed

The 12 23 edition corrects a typo ("contact" to "contract"). The coverage is the same as 11 20.

Editions

Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.

EditionFilingsCompaniesStatesFiled
12 23Dec 2023Latest21911050Dec 2022 to Sep 2026
11 20Nov 202021111046Nov 2021 to Jul 2026

1 other edition date appears in one or two filings each, often carrier-specific versions: 11 00.

What the filings show

  • Edition in use: in the past 12 months, 48 companies filed the 12 23 edition and 13 companies filed 11 20.
  • CA 00 20 (Motor Carrier Coverage Form) is filed alongside it most often, in 296 of the same filings (69%).

Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Sep 2026, excluding withdrawn and rejected filings.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 04 43, out of 66 in total.

CarrierFilingsStatesEditions, most filed firstLast filed
Berkshire Hathaway Group6 group companies filed it, led by National Liability and Fire Insurance Company and National Indemnity Company784312 2311 2011 00May 5, 2026
Insurance Services Office, Inc.Advisory Organization444212 23Nov 3, 2023
Clear Blue Financial Group2 group companies filed it, led by Clear Blue Insurance Company and Rock Ridge Insurance Company423511 2012 23Jun 17, 2026
OBS Holdings Group2 group companies filed it, led by Obsidian Insurance Company and Obsidian Pacific Insurance Company363611 20Feb 3, 2023
Nationwide Corporation Group11 group companies filed it, led by Nationwide Agribusiness Insurance Company and Crestbrook Insurance Company281412 2311 20Aug 7, 2026
OLD Republic Group4 group companies filed it, led by BITCO General Insurance Corporation and BITCO National Insurance Company16212 2311 20Aug 14, 2026
Arch Insurance Group3 group companies filed it, led by Arch Insurance Company and Arch Indemnity Insurance Company14212 2311 20Apr 8, 2026
MS & AD Insurance Group3 group companies filed it, led by Mitsui Sumitomo Insurance Company of America and Mitsui Sumitomo Insurance USA Inc.10512 2311 20Aug 27, 2025
Scor GroupGeneral Security National Insurance Company10111 20Jun 9, 2026
Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company9412 2311 20Aug 27, 2026

How the largest insurers handle CA 04 43

Groups among the largest commercial auto insurers that filed CA 04 43 or their own version in the past five years.

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States

Number of filings that include CA 04 43 in each state, Oct 2021 to Sep 2026. Darker states have more filings.

Tennessee: 6 filingsTN6Alabama: 4 filingsAL4Florida: 0 filingsFLGeorgia: 5 filingsGA5Oklahoma: 4 filingsOK4South Carolina: 7 filingsSC7Arkansas: 6 filingsAR6Missouri: 6 filingsMO6Indiana: 7 filingsIN7Louisiana: 6 filingsLA6Ohio: 4 filingsOH4Wisconsin: 5 filingsWI5Texas: 10 filingsTX10Kentucky: 7 filingsKY7Iowa: 5 filingsIA5Kansas: 5 filingsKS5Mississippi: 4 filingsMS4North Carolina: 5 filingsNC5Nebraska: 5 filingsNE5South Dakota: 4 filingsSD4Montana: 6 filingsMT6New Hampshire: 4 filingsNH4Virginia: 3 filingsVA3Arizona: 1 filingAZ1Pennsylvania: 3 filingsPA3Rhode Island: 5 filingsRI5Michigan: 1 filingMI1Alaska: 3 filingsAK3District of Columbia: 5 filingsDC5Idaho: 12 filingsID12Maryland: 6 filingsMD6West Virginia: 4 filingsWV4Utah: 4 filingsUT4Wyoming: 8 filingsWY8Delaware: 4 filingsDE4New Mexico: 8 filingsNM8Colorado: 111 filingsCO111Connecticut: 5 filingsCT5Maine: 5 filingsME5North Dakota: 5 filingsND5Illinois: 23 filingsIL23Minnesota: 1 filingMN1New Jersey: 2 filingsNJ2New York: 3 filingsNY3Massachusetts: 7 filingsMA7Washington: 11 filingsWA11Oregon: 5 filingsOR5Vermont: 4 filingsVT4California: 55 filingsCA55Nevada: 5 filingsNV5Hawaii: 7 filingsHI7
FewerMore filingsNone

Often filed with

Standard-style form numbers that appear in the same filings most often.

  • CA 00 20Motor Carrier Coverage Form296 filings
  • CA 23 17Truckers – Uniform Intermodal Interchange Endorsement Form Uiie – 1263 filings
  • CA 28 03Abuse or Molestation Exclusion for Covered Autos Liability Exposure261 filings
  • CA 04 49Primary and Noncontributory – Other Insurance Condition237 filings
  • CA 20 01Lessor – Additional Insured and Loss Payee230 filings
  • CA 20 54Employee Hired Autos230 filings
  • CA 04 44Waiver of Transfer of Rights of Recovery Against Others to Us (Waiver of Subrogation)225 filings
  • CA 20 71Auto Loan/Lease Gap Coverage225 filings
  • CA 27 05Unmanned Aircraft Exclusion for General Liability Coverages222 filings
  • CA 23 30Motor Carrier Endorsement218 filings

Recent filings

Latest filings that include this form number. Filed copies open in FilingFocus.

SubmittedCompanyStateEditionsTracking number
Sep 10, 2026SECURA Insurance, A Mutual Companyand 1 moreIL12 23SEIC-135044227
Aug 27, 2026Philadelphia Indemnity Insurance CompanyNM12 23PHLX-135063316
Aug 14, 2026BITCO General Insurance CorporationCA12 23LDDX-135054813
Aug 14, 2026BITCO National Insurance CompanyCA12 23LDDX-135056337
Aug 7, 2026Scottsdale Indemnity CompanyCA12 23NWPP-G135047524
Jul 8, 2026Colorado Farm Bureau Insurance CompanyCO12 23SFBC-135011078
Jul 1, 2026Employers Insurance Company of Wausauand 5 moreCO11 20LBRC-135000006
Jun 30, 2026Accredited Surety and Casualty Company, Inc.CO11 20ACSA-135005169
Jun 25, 2026Selective Insurance Company of Americaand 3 moreCO12 23SELC-134998854
Jun 24, 2026Great American Alliance Insurance Companyand 3 moreCO11 20GACX-134993563
Jun 19, 2026Addison Insurance Companyand 1 moreCO12 23UNFG-134905846
Jun 18, 2026Sompo America Fire and Marine Insurance Companyand 1 moreCO12 23SMPJ-134972831

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