  Compatibility of the Reggeized form of QCD multi-particle amplitudes with the
s-channel unitarity requires fulfilment of an infinite number of the
"bootstrap" relations. On the other hand, it turns out that fulfillment of all
these relations ensures the Reggeized form of energy dependent radiative
corrections order by order in perturbation theory. It is extremely nontrivial,
that all these relations are fulfilled if the Reggeon vertices and trajectory
satisfy several bootstrap conditions. The full set of these conditions in the
next-to-leading order was derived in the last year and the ultimate condition
was shown to be satisfied recently. It means that the Reggeization hypothesis
is proved now in the next-to-leading approximation.
