Coverage description
A National Council on Compensation Insurance (NCCI) standard form. It extends the policy to work subject to the Nonappropriated Fund Instrumentalities Act, treating the scheduled location as a state listed in Item 3.A. of the Information Page and adding that act to the policy's definition of workers compensation law.
Updated
What the form says
Key clauses from edition A, the latest revision, quoted as filed.
“applies only to the work described in the Schedule or described on the Information Page as subject to the Nonappropriated Fund Instrumentalities Act”
WC 00 01 08 A
Which work the endorsement reaches. Only work listed in the endorsement's schedule, or on the Information Page, as subject to the act is affected. The insured's other operations stay under the policy as written.
“The policy applies to that work as though the location shown in the Schedule were a state named in Item 3.A. of the Information Page.”
WC 00 01 08 A
Where that work is treated as located. The schedule gives the description and location of the work, and the policy treats that location as one of the states its workers compensation coverage applies to.
“It does not include any other federal workers or workmen’s compensation law, other federal occupational disease law”
WC 00 01 08 A
Which compensation law the policy pays. The policy's definition of workers compensation law is replaced to add the act to the state laws in Item 3.A. Every other federal compensation or occupational disease law stays outside the definition.
“exclusion 8, does not apply to work subject to the Nonappropriated Fund Instrumentalities Act.”
WC 00 01 08 A
Whether employers liability applies. The policy's employers liability part excludes injury in work subject to the act in its exclusion 8. The endorsement lifts that exclusion for this work, so employers liability applies to it as well.
How the form has changed
Filed copies carry revision A, the 4-92 edition. No earlier NCCI edition is on file to compare.
Editions
Revision letters as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed | Document |
|---|---|---|---|---|---|
| ALatest | 110 | 76 | 12 | Jan 2022 to Nov 2026 | View PDF |
What the filings show
- Edition in use: in the past 12 months, 42 companies filed edition A.
- WC 00 01 04 (Federal Employers' Liability Act Coverage Endorsement) is filed alongside it most often, in 109 of the same filings (99%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Nov 2021 to Nov 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 WC 00 01 08, out of 26 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Brookfield Wealth Solutions Group4 group companies filed it, led by Argonaut Insurance Company and Argonaut-Midwest Insurance Company | 19 | 1 | A | Jun 4, 2026 |
| Nationwide Corporation Group3 group companies filed it, led by Crestbrook Insurance Company and National Casualty Company | 10 | 1 | A | Jun 30, 2026 |
| AXA Insurance Group5 group companies filed it, led by Greenwich Insurance Company and XL Insurance America, Inc. | 6 | 2 | A | Jun 23, 2026 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety First Insurance Company and Safety National Casualty Corporation | 6 | 2 | A | May 14, 2025 |
| Intact Financial Group3 group companies filed it, led by Atlantic Specialty Insurance Company and OBI America Insurance Company | 5 | 1 | A | Jun 24, 2026 |
| RLI Insurance GroupRLI Insurance Company | 5 | 1 | A | Aug 18, 2026 |
| Sompo Group2 group companies filed it, led by Sompo America Fire and Marine Insurance Company and Sompo America Insurance Company | 5 | 1 | A | Jun 15, 2026 |
| State Farm GroupState Farm Fire and Casualty Company | 5 | 1 | A | May 4, 2026 |
| THE Hanover Insurance Group6 group companies filed it, led by Allmerica Financial Alliance Insurance Company and Allmerica Financial Benefit Insurance Company | 5 | 1 | A | Jun 23, 2026 |
| WR Berkley Corporation Group8 group companies filed it, led by Intrepid Casualty Company and Intrepid Insurance Company | 5 | 3 | A | Sep 23, 2024 |
How the largest insurers handle WC 00 01 08
Groups among the largest workers compensation insurers that filed WC 00 01 08 or their own version in the past five years.
- Amtrust Financial Services GroupUses WC 00 01 08 in 1 filing
States
Number of filings that include WC 00 01 08 in each state, Nov 2021 to Nov 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- WC 00 01 04Federal Employers' Liability Act Coverage Endorsement109 filings
- WC 00 01 06Longshoremen's and Harbor Workers' Compensation Act Coverage Endorsement106 filings
- WC 00 01 01Defense Base Act Coverage Endorsement105 filings
- WC 00 03 04Insurance Company as Insured Endorsement101 filings
- WC 00 03 05Joint Venture as Insured Endorsement101 filings
- WC 00 03 13Waiver of Our Right to Recover From Others Endorsement101 filings
- WC 00 01 09Outer Continental Shelf Lands Act Coverage Endorsement100 filings
- WC 00 03 01Alternate Employer Endorsement99 filings
- WC 00 03 08Partners, Officers and Others Exclusion Endorsement99 filings
- WC 00 03 11Voluntary Compensation and Employers Liability Coverage Endorsement99 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Nov 2, 2026 | AmFed Advantage Insurance Companyand 3 more | WA | A | GREY-135137891 |
| Oct 2, 2026 | AmFed Advantage Insurance Companyand 3 more | CA | A | GREY-135104146 |
| Sep 25, 2026 | AmFed Advantage Insurance Companyand 3 more | MI | A | GREY-135103500 |
| Sep 16, 2026 | ZNAT Insurance Company | CT | A | ZICO-135090521 |
| Aug 18, 2026 | RLI Insurance Company | CO | A | RLSC-135057018 |
| Aug 7, 2026 | New Jersey Compensation Rating and Inspection Bureau | NJ | A | NJCR-135046869 |
| Jun 30, 2026 | American Casualty Company of Reading, Pennsylvaniaand 5 more | CO | A | CNAB-135003197 |
| Jun 30, 2026 | Crestbrook Insurance Companyand 1 more | CO | A | NWPP-135003409 |
| Jun 30, 2026 | National Casualty Company | CO | A | NWPP-135004216 |
| Jun 24, 2026 | Atlantic Specialty Insurance Companyand 2 more | CO | A | BEAC-134978198 |
| Jun 23, 2026 | Allmerica Financial Alliance Insurance Companyand 5 more | CO | A | HNVX-134968029 |
| Jun 23, 2026 | AXA XL Insurance Company Americasand 3 more | CO | A | XLAM-134996276 |
Most filed NCCI WC forms
- WC 00 00 01 Information Page
- WC 00 04 19 Part Five, Premium Amendatory Endorsement
- WC 00 00 00 Workers Compensation and Employers Liability Insurance Policy
- WC 00 04 21 Catastrophe (Other Than Certified Acts of Terrorism) Premium Endorsement
- WC 00 04 06 Premium Discount Endorsement
- WC 00 03 13 Waiver of Our Right to Recover From Others Endorsement
- WC 00 04 22 Terrorism Risk Insurance Program Reauthorization Act Disclosure Endorsement
- WC 00 03 08 Partners, Officers and Others Exclusion Endorsement
- WC 00 03 03 Employers Liability Coverage Endorsement
- WC 00 03 11 Voluntary Compensation and Employers Liability Coverage Endorsement
- WC 00 04 03 Experience Rating Modification Factor Endorsement
- WC 00 04 04 Pending Rate Change Endorsement