Accelerant National Insurance Company has filed a new commercial surety program in California, introducing a rating and rules framework for contract and commercial surety business in the state.

The filing, submitted on January 26, 2026, seeks prior approval to launch a new surety program covering contract surety and commercial surety risks. The company indicated that the program is new to California and does not modify or replace any previously approved rates or rules. Accelerant requested that the program take effect on approval for both new and renewal business.

According to the filing, the program uses a neutral rate impact, with no overall premium change associated with the launch. The rating framework relies on account level pricing, applying a combination of base rates and multiplicative risk factors tied to credit quality, financial strength, liability to net worth, collateral, contract characteristics, duration, and underwriting complexity. Scheduled rating adjustments may also be applied to reflect qualitative risk factors not otherwise captured in the base rating structure.

The program establishes separate methodologies for non construction contract surety, commercial non transactional surety, construction contract surety, and transactional surety business. Minimum premiums, rounding rules, duration surcharges, and bond specific provisions are clearly defined across bond types, including bid bonds, performance bonds, payment bonds, maintenance bonds, and supply contracts.

Accelerant stated that the filing represents a resubmission of a previously rejected proposal and is intended to formally introduce its surety offering into the California market under a standalone program.