Establishes Department of Diversity, Equity, and Inclusion as principal department in Executive Branch and specifies functions, powers, and duties of department.

S 3163 creates the Department of Diversity, Equity, and Inclusion (DDEI) as a new principal department within New Jersey's Executive Branch, with a commissioner appointed by the Governor. The bill requires all state agencies to develop diversity, equity, inclusion, and accessibility strategic plans and mandates that entities receiving state financial assistance must submit their own diversity plans. The DDEI will oversee implementation of these requirements, transfer the Division on Civil Rights from the Department of Law and Public Safety, and coordinate statewide efforts to advance diversity in state government hiring, contracting, and pay practices. The bill specifies detailed requirements for data collection, pay equity, accessibility for employees with disabilities, and outreach to underrepresented communities.