The proposed bill aims to enhance access to infertility diagnosis, treatment, and standard fertility preservation services in Washington State. It mandates that group health plans and health plans for state employees, issued or renewed after January 1, 2026, must include coverage for standard fertility preservation services. Furthermore, starting January 1, 2027, these plans must also cover the diagnosis and treatment of infertility, which includes provisions for two completed oocyte retrievals and unlimited embryo transfers, adhering to guidelines from the American Society for Reproductive Medicine. The bill emphasizes that these benefits should be provided to enrollees and their dependents on par with other pregnancy-related benefits, and it prohibits any discriminatory exclusions or limitations on fertility medications and services.

Additionally, the bill introduces new sections to various chapters of the Revised Code of Washington (RCW), specifically chapters 48.43, 41.05, and 74.09, to ensure comprehensive coverage for fertility-related services. It defines key terms such as "infertility," "diagnosis of and treatment for infertility," and "standard fertility preservation services," aligning them with established medical practices. The legislation also empowers the insurance commissioner to adopt rules for its implementation and enforcement. This act is officially titled the "Washington State Building Families Act."