[en] A comparison is made between evaluations of radiative-capture and fission cross-sections for the isotopes ²³⁶U, ²³⁷Np, ²³⁸Pu, ²⁴¹Am, ²⁴³Am, ²⁴²Cm and ²⁴⁴Cm, and group cross-sections for use in fast-reactor calculations are recommended. Group cross-sections obtained from the HEDL graphical data (evaluation for ENDF/B-V) are shown for ²³⁴U, ²³⁶Pu, ²³⁷Pu, ²⁴²Pu, ²⁴⁴Pu, sup(242m)Am, ²⁴¹Cm, ²⁴³Cm and ²⁴⁸Cm. Group cross-sections for 32 isotopes from the ENDL-76 library files are also given. In choosing recommended cross-sections, account was taken of the extent of agreement with experimental data where these are available, the extent to which the cross-sections are documented and the extent to which they have been calculated from a theoretical model. The reliability of evaluations is discussed. An attempt is made to evaluate the error in single-group cross-sections averaged over a typical fast-reactor spectrum. Conclusions are drawn from a study of the literature on the current status of experimental and theoretical research on transactinide cross-sections, and from the spread of the different evaluation data. Finally, the situation with respect to the integral experiments which can be used for correcting transactinide cross-sections is discussed. (author)