The proposed bill aims to establish two autonomous regions in Washington State: the Puget Sound region and the Columbia region. This division is intended to address the growing philosophical and value-based differences between the urban western part of the state and the more rural eastern and southwestern areas. The bill emphasizes the right of the people to alter their government when it fails to represent them, as supported by historical documents such as the Declaration of Independence and Federalist Papers. The boundaries for the regions are defined, with the Columbia region encompassing counties east of the Cascade mountain range and the Puget Sound region including counties bordering Puget Sound and the Olympic Peninsula.

To facilitate the creation of these autonomous regions, the bill establishes a joint legislative task force, which will include key legislative leaders and will be chaired by the lieutenant governor. This task force is responsible for selecting members for two regional committees—one for each autonomous region—determining funding, and developing a plan for the regions' establishment, which will be presented to the legislature by December 31, 2026. Each regional committee will consist of representatives from various sectors and will explore strategies for the creation of the regions, ultimately reporting their findings back to the task force. The act is referred to as the "win-win for Washington act."