ISO endorsement · commercial general liability

CG 20 38 Additional Insured - Owners, Lessees Or Contractors - Automatic Status For Other Parties When Required In Written Construction Agreement

Filings
155
latest Oct 22, 2026
Filing companies
82
42 carrier groups
States
35
Latest edition
12 19
Dec 2019

Coverage description

An Insurance Services Office (ISO) standard form. It automatically makes anyone you agree in a written construction contract to add as an additional insured, and other parties that contract requires, insureds for your ongoing operations, with exclusions for professional services and completed work.

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.

  1. 12 19 edition

    Dec 2019, compared with 04 13Latest edition
    • The additional insured's limit is now capped by the applicable limits of insurance, without requiring them to be shown in the Declarations.

      04 13

      “Available under the applicable Limits of Insurance shown in the Declarations;”

      12 19

      “Available under the applicable limits of insurance;”

    • Coverage for ongoing operations now expressly applies to both the contracting party and the other parties the contract requires you to add.

      04 13

      Not in this edition

      12 19

      “your ongoing operations for the additional insured described in Paragraph 1. or 2. above”

Editions

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

EditionFilingsCompaniesStatesFiled
12 19Dec 2019Latest1237233Nov 2021 to Oct 2026
04 13Apr 2013351517Dec 2021 to Jun 2026
07 04Jul 2004323Oct 2022 to Nov 2022

1 other edition date appears in one or two filings each, often carrier-specific versions: 10/1/2020.

Where filings record what this form replaced, they name earlier edition 04 13. Only some filings record replacements.

What the filings show

  • Edition in use: in the past 12 months, 22 companies filed the 12 19 edition and 1 company filed 04 13.
  • CG 20 33 (Additional Insured – Owners, Lessees or Contractors – Automatic Status When Required in a Written Construction Agreement with You) is filed alongside it most often, in 153 of the same filings (99%).

Filed under

Commercial General Liability 127Other other liability 8Other Liability 8Other Commercial Lines 6Other CMP 2Commercial Package 2

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 20 38, out of 42 in total.

CarrierFilingsStatesEditions, most filed firstLast filed
Markel Corporation Group3 group companies filed it, led by State National Insurance Company, Inc. and Markel Insurance Company221604 1312 19Oct 22, 2026
Cincinnati Financial Group3 group companies filed it, led by The Cincinnati Casualty Company and The Cincinnati Indemnity Company161612 19Oct 23, 2023
WCF Mutual Insurance Company GroupAssociated Indemnity Corporation161612 19Jan 15, 2026
Nationwide Corporation Group8 group companies filed it, led by Allied Insurance Company of America and Nationwide Agribusiness Insurance Company10304 1312 19Feb 12, 2025
Tokio Marine Holdings Incorporated Group4 group companies filed it, led by Safety National Casualty Corporation and TNUS Insurance Company8212 19Feb 17, 2026
Sompo GroupSompo America Insurance Company7212 19Jun 18, 2026
Grange Mutual CAS Group3 group companies filed it, led by Grange Indemnity Insurance Company and Grange Insurance Company6612 19Mar 28, 2024
Hastings Mutual Insurance Company6512 19Mar 13, 2025
Siriuspoint GroupSiriusPoint America Insurance Company6212 19Jun 15, 2026
Church Mutual GroupChurch Mutual Insurance Company, S.I.5212 19Jun 26, 2026

How the largest insurers handle CG 20 38

Groups among the largest commercial general liability insurers that filed CG 20 38 or their own version in the past five years.

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States

Number of filings that include CG 20 38 in each state, Oct 2021 to Oct 2026. Darker states have more filings.

Tennessee: 1 filingTN1Alabama: 1 filingAL1Florida: 0 filingsFLGeorgia: 3 filingsGA3Oklahoma: 1 filingOK1South Carolina: 4 filingsSC4Arkansas: 3 filingsAR3Missouri: 2 filingsMO2Indiana: 3 filingsIN3Louisiana: 0 filingsLAOhio: 2 filingsOH2Wisconsin: 4 filingsWI4Texas: 2 filingsTX2Kentucky: 1 filingKY1Iowa: 3 filingsIA3Kansas: 2 filingsKS2Mississippi: 0 filingsMSNorth Carolina: 1 filingNC1Nebraska: 0 filingsNESouth Dakota: 0 filingsSDMontana: 2 filingsMT2New Hampshire: 0 filingsNHVirginia: 2 filingsVA2Arizona: 0 filingsAZPennsylvania: 2 filingsPA2Rhode Island: 1 filingRI1Michigan: 0 filingsMIAlaska: 0 filingsAKDistrict of Columbia: 0 filingsDCIdaho: 3 filingsID3Maryland: 1 filingMD1West Virginia: 0 filingsWVUtah: 1 filingUT1Wyoming: 5 filingsWY5Delaware: 0 filingsDENew Mexico: 4 filingsNM4Colorado: 32 filingsCO32Connecticut: 1 filingCT1Maine: 0 filingsMENorth Dakota: 0 filingsNDIllinois: 8 filingsIL8Minnesota: 0 filingsMNNew Jersey: 1 filingNJ1New York: 1 filingNY1Massachusetts: 0 filingsMAWashington: 9 filingsWA9Oregon: 3 filingsOR3Vermont: 1 filingVT1California: 42 filingsCA42Nevada: 2 filingsNV2Hawaii: 1 filingHI1
FewerMore filingsNone

Often filed with

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

  • CG 20 33Additional Insured – Owners, Lessees or Contractors – Automatic Status When Required in a Written Construction Agreement with You153 filings
  • CG 20 01Primary and Noncontributory - Other Insurance Condition149 filings
  • CG 20 35Additional Insured – Grantor of Licenses – Automatic Status When Required by Licensor141 filings
  • CG 20 15Additional Insured – Vendors140 filings
  • CG 20 28Additional Insured – Lessor of Leased Equipment140 filings
  • CG 20 36Additional Insured – Grantor of Licenses140 filings
  • CG 20 37Additional Insured - Owners, Lessees or Contractors - Completed Operations140 filings
  • CG 20 26Additional Insured – Designated Person or Organization139 filings
  • CG 20 27Additional Insured - Co-Owner of Insured Premises139 filings
  • CG 20 34Additional Insured - Lessor of Leased Equipment - Automatic Status When Required in Lease Agreement with You139 filings

Recent filings

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

SubmittedCompanyStateEditionsTracking number
Oct 22, 2026State National Insurance Company, Inc.CO12 19STNA-135128706
Jun 26, 2026Church Mutual Insurance Company, S.I.CO12 19CHMU-134947220
Jun 24, 2026Southern Trust Insurance CompanyGA12 19STTR-134864949
Jun 18, 2026Sompo America Insurance CompanyCO12 19SMPJ-134985965
Jun 17, 2026Atlantic Specialty Insurance CompanyNM12 1904 13BEAC-134983795
Jun 15, 2026SiriusPoint America Insurance CompanyCO12 19MRTN-134978899
Jun 15, 2026SiriusPoint America Insurance CompanyCO12 19MRTN-134978902
Jun 2, 2026Zenith Insurance CompanyCA12 19ZICO-134965759
Apr 30, 2026Trisura Insurance CompanyCA12 19SHNF-134881681
Mar 20, 2026American Casualty Company of Reading, Pennsylvaniaand 5 moreCO12 19CNAB-134872676
Feb 24, 2026American Casualty Company of Reading, Pennsylvaniaand 5 moreSC12 19CNAB-134851008
Feb 17, 2026Safety National Casualty CorporationCO12 19SFCC-134814522

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