On August 4, 2025, the DCRB submitted a residual market rate and voluntary market loss cost filing to the Delaware Department of Insurance. Also included in this filing is proposed revisions to designated auditable payrolls. That filing, designated as DCRB Filing No. 2501, proposed revisions to residual market rates, voluntary market loss costs and related rating values effective December 1, 2025.
A complete list of the proposals and supporting information contained in the DCRB’s December 1, 2025 rate and loss cost filing appears below. Clicking on each listed item will allow you to review and/or download the filing materials as needed.
You must have an installed copy of the Adobe Acrobat Reader in order to view this material. Download the Free Acrobat Reader.
| Filing Letter | |
| Auditable Payrolls Proposal | |
| Actuarial Memorandum | |
| Class Book | |
| Exhibit 1 - Limited Losses | Table I - Summary of Financial Call Data |
| Exhibit 1a | Excess Loss Ratios and Loss Limitations |
| Exhibit 1b | Table I - Reported Losses in Excess of Loss Limitations |
| Exhibit 2 - Limited Losses | Paid and Incurred Loss Development and Trend |
| Exhibit 2a - Limited Losses | Loss Development Triangles |
| Exhibit 2b - Limited Losses | Graphs of Selected Loss Development Projections |
| Exhibit 2c - Limited Losses | Policy Year Loss Ratio Summary |
| Exhibit 3 | Tail Factors and Paid Bridge Factors for Loss Development |
| Exhibit 4 | Claim Frequencies |
| Exhibit 5 | Graphs of Ultimate and Trended Experience Components |
| Exhibit 6 | Premium and Indemnity On-Level Factors |
| Exhibit 7 | Closed Claim Ratios, Payout Ratios and Average Claim Costs |
| Exhibit 8 | Expense Study |
| Exhibit 9 | Internal Rate of Return Model |
| Exhibit 10 | Effect of 7/1/24 Benefit Change |
| Exhibit 11 | Expense Loading |
| Exhibit 12 | Indicated Residual Market Rate Change |
| Exhibit 13 | Experience Rating Plan |
| Exhibit 14 | Delaware Construction Classification Premium Adjustment Program |
| Exhibit 15 | Rate and Loss Cost Formulae |
| Exhibit 16 | Small Deductible Program |
| Exhibit 17a | Empirical Delaware Loss Distribution |
| Exhibit 17b | Excess Loss (Pure Premium) Factors |
| Exhibit 17c | Excess Loss Pure Premium Factors Adjusted to Include ALAE |
| Exhibit 17d | Excess Loss Premium Factors |
| Exhibit 17e | Excess Loss Premium Factors Adjusted to Include ALAE |
| Exhibit 18 | Excess Loss Load |
| Exhibit 19 | Delaware Insurance Plan |
| Exhibit 20 | Review of Experience Rating Plan Parameters |
| Exhibit 21 | Table B |
| Exhibit 22a | Table II - Unit Statistical Data |
| Exhibit 22b | Table III - Unit Statistical Data |
| Exhibit 22c | Table IV - Unit Statistical Data |
| Exhibit 25 | Tax Multiplier |
| Manual Rates, Loss Costs and Expected Loss Rates | |
| Exhibit 28 | Other Supporting Classification Exhibits |
| Exhibit 29 | Delaware Workplace Safety Program & Merit Rating Program |
| Exhibit 30 | Distribution of Residual Market Rate Changes and Classifications with Proposed Capped Changes |
| Exhibit 31a | Summary of Indicated and Proposed Residual Market Rates by Class Code |
| Exhibit 31b | Summary of Indicated and Proposed Residual Market Rates by Percentage Change |
| Exhibit 32 | Temporary Staffing Rates |
| Exhibit 33 | Expected Loss Factors for Temporary Staffing Classes Discontinued Effective December 1, 2021 |
| Exhibit 1 - Unlimited Losses | Table I - Summary of Financial Call Data |
| Exhibit 2 - Unlimited Losses | Paid and Incurred Loss Development and Trend |
| Exhibit 2a - Unlimited Losses | Loss Development Triangles |
| Exhibit 2b - Unlimited Losses | Graphs of Selected Loss Development Projections |
| Completed Copies of the Following Property & Casualty Filing Forms: | State-Specific Requirements Property & Casualty Transmittal Document Rate / Rule Filing Schedule |