| WC 00 04 21 | Catastrophe (Other Than Certified Acts of Terrorism) Premium Endorsement | F | 60 | 40 | Nov 2, 2026 |
| WC 00 04 19 | Part Five, Premium Amendatory Endorsement | A | 51 | 42 | Sep 16, 2026 |
| WC 00 04 06 | Premium Discount Endorsement | A | 45 | 41 | Nov 2, 2026 |
| WC 00 03 13 | Waiver of Our Right to Recover From Others Endorsement | Original | 42 | 31 | Nov 2, 2026 |
| WC 00 03 01 | Alternate Employer Endorsement | A | 40 | 30 | Nov 2, 2026 |
| WC 00 04 24 | Audit Noncompliance Charge Endorsement | Original | 38 | 26 | Nov 2, 2026 |
| WC 00 04 03 | Experience Rating Modification Factor Endorsement | Original | 37 | 29 | Nov 2, 2026 |
| WC 00 04 04 | Pending Rate Change Endorsement | Original | 37 | 25 | Nov 2, 2026 |
| WC 00 03 03 | Employers Liability Coverage Endorsement | C | 36 | 25 | Nov 2, 2026 |
| WC 00 01 06 | Longshore and Harbor Workers' Compensation Act Coverage Endorsement | A | 35 | 15 | Nov 2, 2026 |
| WC 00 03 05 | Joint Venture as Insured Endorsement | Original | 35 | 27 | Nov 2, 2026 |
| WC 00 03 10 | Sole Proprietors, Partners, Officers and Others Coverage Endorsement | Original | 35 | 28 | Nov 2, 2026 |
| WC 00 03 11 | Voluntary Compensation and Employers Liability Coverage Endorsement | A | 35 | 27 | Nov 2, 2026 |
| WC 00 04 25 | Experience Rating Modification Factor Revision Endorsement | Original | 34 | 26 | Nov 2, 2026 |
| WC 00 04 14 | 90-Day Reporting Requirement, Notification of Change in Ownership Endorsement | A | 33 | 28 | Nov 2, 2026 |
| WC 00 06 03 | Benefits Deductible Endorsement | Original | 33 | 17 | Sep 16, 2026 |
| WC 00 03 04 | Insurance Company as Insured Endorsement | Original | 32 | 22 | Sep 16, 2026 |
| WC 00 04 07 | Rate Change Endorsement | Original | 32 | 25 | Nov 2, 2026 |
| WC 00 04 12 | Contingent Experience Rating Modification Factor Endorsement | Original | 32 | 26 | Sep 16, 2026 |
| WC 00 03 09 | Rural Utilities Service Endorsement | B | 29 | 12 | Sep 16, 2026 |
| WC 00 01 04 | Federal Employers' Liability Act Coverage Endorsement | A | 28 | 15 | Nov 2, 2026 |
| WC 00 02 01 | Maritime Coverage Endorsement | B | 27 | 11 | Nov 2, 2026 |
| WC 00 05 03 | Retrospective Rating Plan Premium Endorsement One-Year Plan | D | 27 | 11 | Sep 16, 2026 |
| WC 00 01 01 | Defense Base Act Coverage Endorsement | A | 26 | 13 | Nov 2, 2026 |
| WC 00 01 08 | Nonappropriated Fund Instrumentalities Act Coverage Endorsement | A | 26 | 12 | Nov 2, 2026 |
| WC 00 01 16 | Notification Endorsement of Pending Law Change to Terrorism Risk Insurance Program Reauthorization Act of 2019 | Original | 26 | 38 | Nov 6, 2026 |
| WC 00 02 03 | Voluntary Compensation Maritime Coverage Endorsement | Original | 26 | 11 | Nov 2, 2026 |
| WC 00 04 05 | Policy Period Endorsement | Original | 26 | 14 | Sep 16, 2026 |
| WC 00 03 20 | Professional Employer Organization (PEO) Extension Endorsement | B | 25 | 11 | Sep 16, 2026 |
| WC 00 01 09 | Outer Continental Shelf Lands Act Coverage Endorsement | C | 24 | 10 | Nov 2, 2026 |
| WC 00 04 08 | Longshore and Harbor Workers' Compensation Act Rate Change Endorsement | Original | 24 | 35 | Sep 16, 2026 |
| WC 00 05 10 | Retrospective Rating Plan Premium Endorsement Non-Ratable Catastrophe Element or Surcharge | B | 24 | 10 | Aug 18, 2026 |
| WC 00 05 11 | Retrospective Premium Endorsement Short Form | Original | 24 | 13 | Sep 16, 2026 |
| WC 00 05 16 | Retrospective Rating Plan Premium Endorsement, Large Risk Alternative Rating Option | Original | 24 | 14 | Sep 16, 2026 |
| WC 00 01 02 | Federal Mine Safety and Health Act Coverage Endorsement | B | 23 | 9 | Sep 16, 2026 |
| WC 00 05 04 | Retrospective Rating Plan Premium Endorsement Three-Year Plan | D | 23 | 10 | Sep 16, 2026 |
| WC 00 05 05 | Retrospective Rating Plan Premium Endorsement Wrap-Up Construction Project | D | 23 | 9 | Aug 18, 2026 |
| WC 00 01 11 | Migrant and Seasonal Agricultural Worker Protection Act Coverage Endorsement | Original | 22 | 8 | Sep 16, 2026 |
| WC 00 05 09 | Retrospective Premium Endorsement Changes | A | 21 | 10 | Sep 16, 2026 |
| WC 00 05 12 | Retrospective Rating Plan Premium Endorsement One-Year Plan, Multiple Lines | D | 20 | 8 | Aug 18, 2026 |
| WC 00 05 15 | Retrospective Rating Plan Premium Endorsement, Flexibility Options | A | 20 | 8 | Aug 18, 2026 |
| WC 00 03 12 | Voluntary Compensation and Employers Liability Coverage for Residence Employees Endorsement | A | 19 | 7 | Sep 16, 2026 |
| WC 00 03 14 | Workers Compensation and Employers Liability Coverage For Residence Employees Endorsement | A | 19 | 7 | Sep 16, 2026 |
| WC 00 03 23 | Multiple Coordinated Policy Endorsement | A | 19 | 8 | Aug 18, 2026 |
| WC 00 05 14 | Retrospective Rating Plan Premium Endorsement Wrap-Up Construction Project, Multiple Lines | D | 19 | 8 | Aug 18, 2026 |
| WC 00 05 13 | Retrospective Rating Plan Premium Endorsement Three-Year Plan, Multiple Lines | D | 18 | 8 | Aug 18, 2026 |