State government; Oklahoma State Data Center; Legislative Service Bureau; responsibilities; effective date.

HB 3621 creates the Oklahoma State Data Center, managed by the Legislative Service Bureau, to serve as the state's primary hub for population data and official liaison to the U.S. Census Bureau. The Center will collect and analyze population statistics, produce annual demographic reports for the Governor and Legislature, and assist with redistricting, school boundary reviews, and federal census programs like the Local Update of Census Addresses. It will coordinate with state agencies, local governments, and tribal entities to ensure accurate demographic data for planning and funding decisions. The bill takes effect November 1, 2026.