The bill aims to enhance the public health system for American Indians and Alaska Natives in Washington State by establishing principles for the sharing and protection of tribal data. It introduces a new section to chapter 43.71B RCW that mandates state agencies to adhere to tribal data sovereignty principles, ensuring tribes have equal access to state data, retain ownership of their data, and have the right to informed consent regarding its use. Additionally, the bill requires state agencies to incorporate these principles into data sharing agreements and consult with the governor's Indian health advisory council on related matters.

Furthermore, the bill amends RCW 43.71B.010 to include new definitions related to tribal data and sovereignty, and it adds new sections to chapters 43.20 and 42.56 RCW. These sections require health care providers to report notifiable conditions to tribal health jurisdictions and exempt tribal data from public disclosure, thereby reinforcing the protection of sensitive information pertaining to American Indians and Alaska Natives. Overall, the legislation seeks to improve health outcomes for these communities by ensuring their data rights are respected and upheld.