ISO state amendatory endorsement · commercial auto

CA 04 37 Colorado Individually Owned Motor Vehicles

Filings
160
latest Jul 27, 2026
Filing companies
73
28 carrier groups
States
2
Latest edition
11 16
Nov 2016

Coverage description

An Insurance Services Office (ISO) standard form. For Colorado, it makes relatives living in the named insured's household insureds when an individual is shown in the schedule as the owner of a private passenger auto. Autos used for hire, including rideshare driving, do not count as private passenger autos.

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.

  1. 11 16 edition

    Nov 2016, compared with 10 13Latest edition
    • A vehicle used by an insured logged into a transportation network platform as a driver no longer counts as a private passenger auto, whether or not a passenger is in it.

      10 13

      “conveyance for passengers nor rented to others”

      11 16

      “used to connect passengers with drivers using vehicles”

Editions

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

EditionFilingsCompaniesStatesFiled
11 16Nov 2016Latest129542Apr 2022 to Jul 2026
11 13Nov 2013341Jun 2024 to Jun 2026
10 13Oct 201320141May 2022 to Jul 2026
07 08Jul 20081281May 2022 to Jun 2026

What the filings show

  • Edition in use: in the past 12 months, 40 companies filed the 11 16 edition and 11 companies filed 10 13.
  • CA 01 13 (Colorado Changes) is filed alongside it most often, in 127 of the same filings (79%).

Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Jul 2026, excluding withdrawn and rejected filings.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 37, out of 28 in total.

CarrierFilingsStatesEditions, most filed firstLast filed
Berkshire Hathaway Group13 group companies filed it, led by Berkshire Hathaway Homestate Insurance Company and Columbia Insurance Company15111 1610 13Jul 6, 2026
Liberty Mutual Group3 group companies filed it, led by State Automobile Mutual Insurance Company and Milbank Insurance Company15111 1607 0810 13Jun 17, 2026
OLD Republic Group4 group companies filed it, led by BITCO General Insurance Corporation and BITCO National Insurance Company13111 16May 11, 2026
Arch Insurance Group3 group companies filed it, led by Arch Indemnity Insurance Company and Arch Insurance Company12111 16Apr 8, 2026
Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company10111 1607 08May 6, 2026
Scor GroupGeneral Security National Insurance Company10111 16Jun 9, 2026
Nationwide Corporation Group9 group companies filed it, led by Allied Insurance Company of America and Nationwide Mutual Insurance Company7110 13Apr 7, 2026
Southern Farm Bureau CAS GroupColorado Farm Bureau Insurance Company6111 1610 13Jul 8, 2026
Alliance Insurance GroupFarmers Alliance Mutual Insurance Company5111 16May 19, 2026
Central Mutual Insurance Company Group2 group companies filed it, led by All America Insurance Company and Central Mutual Insurance Company5111 16Jun 12, 2026

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States

Number of filings that include CA 04 37 in each state, Oct 2021 to Jul 2026. Darker states have more filings.

Tennessee: 0 filingsTNAlabama: 0 filingsALFlorida: 0 filingsFLGeorgia: 0 filingsGAOklahoma: 0 filingsOKSouth Carolina: 0 filingsSCArkansas: 0 filingsARMissouri: 0 filingsMOIndiana: 0 filingsINLouisiana: 0 filingsLAOhio: 0 filingsOHWisconsin: 0 filingsWITexas: 0 filingsTXKentucky: 0 filingsKYIowa: 0 filingsIAKansas: 0 filingsKSMississippi: 0 filingsMSNorth Carolina: 0 filingsNCNebraska: 0 filingsNESouth Dakota: 0 filingsSDMontana: 0 filingsMTNew Hampshire: 0 filingsNHVirginia: 0 filingsVAArizona: 0 filingsAZPennsylvania: 0 filingsPARhode Island: 0 filingsRIMichigan: 0 filingsMIAlaska: 0 filingsAKDistrict of Columbia: 0 filingsDCIdaho: 0 filingsIDMaryland: 1 filingMD1West Virginia: 0 filingsWVUtah: 0 filingsUTWyoming: 0 filingsWYDelaware: 0 filingsDENew Mexico: 0 filingsNMColorado: 159 filingsCO159Connecticut: 0 filingsCTMaine: 0 filingsMENorth Dakota: 0 filingsNDIllinois: 0 filingsILMinnesota: 0 filingsMNNew Jersey: 0 filingsNJNew York: 0 filingsNYMassachusetts: 0 filingsMAWashington: 0 filingsWAOregon: 0 filingsORVermont: 0 filingsVTCalifornia: 0 filingsCANevada: 0 filingsNVHawaii: 0 filingsHI
FewerMore filingsNone

Often filed with

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

  • CA 01 13Colorado Changes127 filings
  • CA 99 10Drive Other Car Coverage - Broadened Coverage For Named Individuals124 filings
  • CA 04 40Colorado Auto Medical Payments Coverage123 filings
  • CA 99 44Loss Payable Clause123 filings
  • CA 00 01Business Auto Coverage Form121 filings
  • CA 21 26Colorado Uninsured Motorists Coverage - Property Damage119 filings
  • CA 21 50Colorado Uninsured Motorists Coverage - Bodily Injury119 filings
  • CA 99 17Individual Named Insured119 filings
  • CA 20 48Designated Insured For Covered Autos Liability Coverage117 filings
  • IL 01 25Colorado Changes - Civil Union116 filings

Recent filings

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

SubmittedCompanyStateEditionsTracking number
Jul 27, 2026360 Insurance CompanyCO11 1610 13MWFB-135033327
Jul 8, 2026Colorado Farm Bureau Insurance CompanyCO11 16SFBC-135011078
Jul 6, 2026GEICO Advantage Insurance Companyand 7 moreCO11 16GECC-135002717
Jun 26, 2026Grange Insurance AssociationCO11 16GRIA-135000193
Jun 25, 2026Selective Insurance Company of Americaand 3 moreCO11 16SELC-134998854
Jun 24, 2026Great American Alliance Insurance Companyand 3 moreCO11 13GACX-134993563
Jun 19, 2026Addison Insurance Companyand 1 moreCO11 16UNFG-134905846
Jun 18, 2026Sompo America Fire and Marine Insurance Companyand 1 moreCO11 16SMPJ-134972831
Jun 17, 2026Society Insurance, a mutual companyCO11 16SCTY-134960697
Jun 17, 2026State Automobile Mutual Insurance CompanyCO11 16STAT-134983292
Jun 17, 2026Milbank Insurance Companyand 2 moreCO07 08STAT-134983846
Jun 17, 2026State Automobile Mutual Insurance CompanyCO10 13STAT-134983865

Most filed ISO CA forms

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