With the progress in computer technology and numerical methods, the capabilities of computer codes have been substantially enhanced, which allows for improved simulation of the complex processes taking place during routine operation of research reactors and under transient conditions. Correct application of these methods and codes is essential to improve design, operation/utilization, and safety aspects of research reactors and associated experiments. However, the validation of computational codes is not an easy task. In order to demonstrate the capabilities of these computational methods and codes, it is necessary to benchmark them against experimental data, before assessing the validity of their application to the design, operation and safety analysis of research reactors. This CRP will support the validation process by collecting available experimental data and assessing the computational methods and tools used for fuel burnup and material activation in research reactor analysis. The outputs of the CRP will be a database of experimental results, measurements and associated facility specifications, and a publication comparing the experimental and computational results of the benchmark studies.