The votes will be counted on Jan. 23, which will not be in time to potentially disrupt the Golden Globe Awards like the writers' strike did last year.
Approval by 75 percent of members is required to pass the measure. If approved, the SAG national board can call a strike.
Guild President Alan Rosenberg said in a statement Wednesday that the future of professional actors is at stake. The guild remains at odds with Hollywood studios over treatment of Internet productions and actor benefits in the event of unplanned work stoppages.
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