"In 2006 a Japanese government subcommittee was charged with revising the
national guidelines on the earthquake-resistance of nuclear power
plants, which had last been partially revised in 2001,[18] resulting in the publication of a new seismic guide — the 2006 Regulatory Guide for Reviewing Seismic Design of Nuclear Power Reactor Facilities.[18] The subcommittee membership included Professor Ishibashi, however his proposal that the standards for surveying active faults
should be reviewed was rejected and he resigned at the final meeting,
claiming that the review process was rigged and ‘unscientific’,[8][19]
and that, although the new guide brought in the most far-reaching
changes since 1978, it was ‘seriously flawed’ because it underestimated
the design basis earthquake ground motion.[6] Ishibashi has subsequently also claimed that the enforcement system was also ‘a shambles’[15][6] and questioned the independence of the Nuclear Safety Commission
after a senior Nuclear and Industrial Safety Agency official appeared
to rule out a new review of the NSC’s seismic design guide in 2007.[6]" (bron)