  We discuss how to apply regularization by dimensional reduction for computing
hadronic cross sections at next-to-leading order. We analyze the infrared
singularity structure, demonstrate that there are no problems with
factorization, and show how to use dimensional reduction in conjunction with
standard parton distribution functions. We clarify that different versions of
dimensional reduction with different infrared and factorization behaviour have
been used in the literature. Finally, we give transition rules for translating
the various parts of next-to-leading order cross sections from dimensional
reduction to other regularization schemes.
