The safe disposition of waste generated from commercial nuclear power plants and legacy weapons production is critical to prevent the release of radionuclides into the biosphere. Consequently, extensive research has been devoted to the synthesis and development of durable waste forms capable of immobilizing a broad range of radioactive and hazardous species. This symposium will discuss the formulation, fabrication, and characterization of waste forms. Specific waste forms to be addressed include, but are not limited to, single or multi-phase ceramics, glass-ceramic composites, borosilicate glasses, and cementitious materials. Manufacturing protocols, durability, and modeling approaches for waste form development and optimization will also be considered.