  The concept of z-scaling reflecting the general regularities of high-pT
particle production is reviewed. Properties of data z-presentation are
discussed. New data on high-pT particle spectra obtained at the RHIC are
analyzed in the framework of z-presentation. It was shown that these
experimental data confirm z-scaling. Predictions of strange particle spectra
are considered to be useful for understanding of strangeness origin in mesons
and baryons and search for new physics phenomena at the RHIC.
