  We discuss the calculation of the evolution kernels \Delta W_{\zeta}(X,Z) for
the leading-twist nonforward parton distributions G_\zeta(X,t) sensitive to
parton helicities. We present our results for the kernels governing evolution
of the relevant light-ray operators and describe a simple method allowing to
obtain from them the components of the nonforward kernels \Delta
W_{\zeta}(X,Z).
