Since Labor Day, CAUSE has collected employee union authorization cards. The NLRB requires organizers get cards signed by at least 30% of a workforce before the government will set an election. While Amazon hasn’t disclosed how many people work at RDU1, CAUSE said in a statement Monday it believes it’s “easily exceeded the 30% threshold.”

If successful, the union vote would form the first unionized Amazon facility in North Carolina and just the second in the United States

Amazon.com Inc. employees at a North Carolina warehouse filed a petition with the National Labor Relations Board requesting an election to determine if workers in the facility will be represented by a union.