The Superfund Innovative Technology Evaluation (SITE) Program has successfully promoted the development, commercialization, and implementation of innovative hazardous waste treatment technologies for 18 years. SITE offers a mechanism for conducting joint technology demonstration and evaluation projects at hazardous waste sites involving the private sector, EPA, and other federal and state agencies. The program provides environmental decisionmakers with relevant data on new, viable remediation technologies that may have performance or cost advantages compared to conventional treatment technologies. The SITE Program focuses on the remediation needs of the hazardous waste remediation community through program planning; matching priority sites with innovative cleanup solutions; technology field demonstrations; and information dissemination. The report summarizes the progress and findings of the SITE Program in FY 2004. The report is prepared in accordance with the statutory requirements of CERCLA (42 USC 9660).