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As the other posters have noted, yes it can, if fact I believe historically multiple sups, in same chassis, VSS came in a later IOS version.
As the other posters have also noted, you need a VSS capable sup, either the VS-S720 or the sup2T. You also need an IOS vesion that supports VSS. Lastly, VSS imposes some additional restrictions on what line cards are also supported.
