Due to the hazardous property of the fly ash produced from incineration and the incomplete development of its reuse for the time being, the fly ash has been solidified and stabilized to meet the leaching criteria set in the TCLP (Toxicity Characteristic Leaching Procedure) before being deposited in the land-fill in most of the counties and cities. Only a few counties or cities such as Taipei City, Hsinchu City, are currently undertaking the incineration fly ash waste reuse model validation and follow-up EPA-101-H101-02-252 iii case study programs. The goal of this project was to assist the Environmental Protection Administration (EPA) to carry out promotion and information dissemination of incineration fly ash recycling in Taiwan. The project was executed from February 1 to December 31, 2012. The major tasks included: Collection and compilation of literature on fly ash reuse technology used in the country and abroad. Arrangement and conduct of fly ash recycling demonstration seminars. Site visits to the disposal sites of fly ash. Counseling and assistance rendered to the local governments for preparing proposal and implementation of fly ash model validation or recycling plan. Assistance provided to the EPA in holding meetings to review the above-mentioned plan and study reports. Achievements made in this project: 1. Obtained the knowledge on the latest trend of fly ash reuse and disposal worldwide through collection and compilation of the newest fly ash recycling technology and methods, as well as their applications in Taiwan and at least five advanced foreign countries. 2. Held a meeting with the Department of Environmental Protection (DEP) of each of the counties and cities and concerned entities with fly ash reuse potential to promote and disseminate the information on fly ash recycling. 3. Familiarized with the current situation of disposal of incineration fly ash and its recycling in Taiwan through the investigation of the fly ash treatment methods adopted by 24 incineration plants in operation and 10 times on-site audits of fly ash pre-treatments and recycling facilities. 4. Provided preliminary review results on the fly ash reuse model validation and reuse plans submitted by the Taipei City Government, and assisted EPA in two review meetings.