Are you talking about being designated the employee's "registered companion" for non-revenue, standby travel? If so, I believe that the only benefit to this over other pass travelers is that you get a somewhat higher priority when there are not enough available seats to accommodate all pass travelers standing by for a flight.

If that's what you're asking about, you might wish to alert a Moderator, and request that this thread be incorporated into the existing thread about NRSA pass travel; your inquiry is likely to get more -- and more-informed -- responses there.