[en] The report describes the various projects comprising the EPRI Light Water Reactor (LWR) Fuel Performance Program. The overall goal of this program is to develop a comprehensive fuel performance data base with verified predictive models and codes that can be used to improve fuel rod reliability and hence increase plant availability. The LWR Fuel Performance Program integrates 20 active research projects that range in scope from laboratory tests of Zircaloy cladding tube behavior under hypothetical LOCA conditions to large-scale testing of prototypic fuel assemblies in operating power reactors. This program has been assembled over the last two years and a first program planning document was issued as EPRI Special Report SR-25 in December 1975. The revision presented includes a status report on projects described in SR-25 and describes new projects under contract since December 1975 or currently in the planning stages