This report continues a series outlining progress in the development of methods for the reprocessing and fabrication of LMFBR fuels. Development work is reported on problems of irradiated fuel transport to the processing facility. the dissolution of the fuel, and the chemical recovery of PuO/sub 2/ -UO/sub 2/ values, the containment of volatile fission products, product purification, preparation of fuel material by the sol-gel process, conversion of fuel processing plant product nitrate solutions to solids suitable for shipping and for fuel fabrication, fuel fabrication of sol- gel materials. and fuel evaluation studies. both in-pile and out-of-pile. Pertinent experimental results are presented for the information of those immediately concerned with the field. Detailed description of experimental work and data is included in topical reports and in the Chemical Technology Division and Metals and Ceramics Division Annual Reports. (auth)