The proposed bill aims to enhance access to infertility diagnosis and treatment, as well as standard fertility preservation services, by mandating coverage in various health plans in Washington State. Specifically, it introduces new sections to chapters 48.43, 41.05, and 74.09 of the Revised Code of Washington (RCW). Starting January 1, 2026, group health plans and employee health plans must include coverage for standard fertility preservation services, and by January 1, 2027, they must also cover the diagnosis and treatment of infertility, which includes provisions for two completed oocyte retrievals and unlimited embryo transfers. The bill prohibits any discriminatory exclusions or limitations on fertility medications and services compared to other medical services.

Additionally, the bill defines key terms related to infertility and fertility preservation, ensuring that coverage aligns with established medical practices and guidelines. It emphasizes the importance of reducing disparities in access to care for various populations, including racial and ethnic minorities and LGBTQ individuals. The act is titled the "Washington State Building Families Act" and grants the insurance commissioner the authority to adopt rules for its implementation and enforcement.