Technical Basis Document for Criteria and Processes for the Certification of Non-Radioactive Hazardous and Non-Hazardous Wastes, report, June 27, 2007; (https://digital.library.unt.edu/ark:/67531/metadc887254/m1/1/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .