Four calculational benchmarks were selected by the U.S. and JAERI to compare numerical results based on various transport codes and data bases developed individually by both parties. The benchmarks chosen are fusion-oriented. Data intercomparison were performed with the ENDF/B-IV, ENDF/B-V, and JENDL-3 evaluations. Both deterministic and Monte Carlo methods were used in the codes intercomparison. Among the codes considered are ONEDANT, ANISN-DD, DOT, MORSE, MCNP, and VIM. Results from these intercomparisons are presented in this paper.