ISO state amendatory endorsement ยท commercial auto

CA 01 13 Colorado Changes

Filings
145
latest Jul 8, 2026
Filing companies
68
29 carrier groups
States
3
Latest edition
10 13
Oct 2013

Coverage description

An Insurance Services Office (ISO) standard form. It changes Colorado commercial auto policies so that primary policies share a loss equally until the lowest limit is exhausted, and makes the insurer the insured's agent for service of process when the insured cannot be located.

Editions

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

EditionFilingsCompaniesStatesFiled
10 13Oct 2013Latest125592Apr 2022 to Jul 2026
01 11Jan 20111471Jun 2022 to Jun 2026

Filed by one company only: 11 20 (OLD Republic Group, 4 filings).

2 other edition dates appear in one or two filings each, often carrier-specific versions: 05 25, 04 24.

What the filings show

  • Edition in use: in the past 12 months, 45 companies filed the 10 13 edition and 5 companies filed 01 11.
  • The 11 20 edition appears only in filings from OLD Republic Group (4 filings in 1 state since May 31, 2022), which suggests a carrier-specific version.
  • CA 99 44 (Loss Payable Clause) is filed alongside it most often, in 133 of the same filings (92%).

Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Jul 2026, excluding withdrawn and rejected filings.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 01 13, out of 29 in total.

CarrierFilingsStatesEditions, most filed firstLast filed
Berkshire Hathaway Group13 group companies filed it, led by Berkshire Hathaway Homestate Insurance Company and Columbia Insurance Company15101 1110 13Jul 6, 2026
OLD Republic Group4 group companies filed it, led by BITCO General Insurance Corporation and BITCO National Insurance Company13110 1311 20May 11, 2026
Arch Insurance Group3 group companies filed it, led by Arch Indemnity Insurance Company and Arch Insurance Company12110 13Apr 8, 2026
Liberty Mutual GroupState Automobile Mutual Insurance Company10110 13Jun 17, 2026
Scor GroupGeneral Security National Insurance Company10110 13Jun 9, 2026
Nationwide Corporation Group9 group companies filed it, led by Allied Insurance Company of America and Nationwide Mutual Insurance Company6110 13Apr 7, 2026
Acuity, A Mutual Insurance Company5110 13Jul 1, 2026
Alliance Insurance GroupFarmers Alliance Mutual Insurance Company5110 13May 19, 2026
Grange Insurance GroupGrange Insurance Association5110 13Jun 26, 2026
Selective Insurance Group4 group companies filed it, led by Selective Insurance Company of America and Selective Insurance Company of South Carolina5110 13Jun 25, 2026

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States

Number of filings that include CA 01 13 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: 2 filingsIN2Louisiana: 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: 142 filingsCO142Connecticut: 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 99 44Loss Payable Clause133 filings
  • CA 00 01Business Auto Coverage Form130 filings
  • CA 99 10Drive Other Car Coverage - Broadened Coverage for Named Individuals128 filings
  • CA 04 37Colorado Individually Owned Motor Vehicles127 filings
  • CA 21 50Colorado Uninsured Motorists Coverage - Bodily Injury126 filings
  • CA 04 40Colorado Auto Medical Payments Coverage125 filings
  • CA 20 48Designated Insured For Covered Autos Liability Coverage124 filings
  • CA 23 94Silica or Silica- Related Dust Exclusion for Covered Autos Exposure123 filings
  • CA 99 16Hired Autos Specified as Covered Autos You Own123 filings
  • CA 20 01Lessor - Additional Insured and Loss Payee122 filings

Recent filings

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

SubmittedCompanyStateEditionsTracking number
Jul 8, 2026Colorado Farm Bureau Insurance CompanyCO10 13SFBC-135011078
Jul 6, 2026GEICO Advantage Insurance Companyand 7 moreCO10 13GECC-135002717
Jul 1, 2026Acuity, A Mutual Insurance CompanyCO10 13ACUT-134982802
Jun 30, 2026Accredited Surety and Casualty Company, Inc.CO10 13ACSA-135005169
Jun 26, 2026Grange Insurance AssociationCO10 13GRIA-135000193
Jun 25, 2026Selective Insurance Company of Americaand 3 moreCO10 13SELC-134998854
Jun 24, 2026Great American Alliance Insurance Companyand 3 moreCO10 13GACX-134993563
Jun 19, 2026Addison Insurance Companyand 1 moreCO10 13UNFG-134905846
Jun 18, 2026Sompo America Fire and Marine Insurance Companyand 1 moreCO10 13SMPJ-134972831
Jun 17, 2026Society Insurance, a mutual companyCO10 13SCTY-134960697
Jun 17, 2026State Automobile Mutual Insurance CompanyCO10 13STAT-134983292
Jun 17, 2026State Automobile Mutual Insurance CompanyCO10 13STAT-134983865

Most filed ISO CA forms

All Commercial Auto (ISO CA) forms

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