California Code, Health and Safety Code - HSC § 78530

(a) “Treatment technologies” means methods, techniques, or processes, including proprietary or patented methods, that permanently alter the composition of hazardous substances at hazardous substance release sites through chemical, biological, or physical means so as to make the substances nonhazardous or to significantly reduce the toxicity, mobility, or volume, or any combination of these characteristics, of the hazardous substances or contaminated materials being treated.

(b) “Full-scale demonstration” means a demonstration of a technology that is of a size or capacity that permits valid comparison of the technology to the technical performance and cost of conventional technologies, that is likely to be cost-effective, and that will result in a substantial or complete remedial or removal action to a hazardous substance release site.