Amazon delivery drivers represented by Teamsters Local 396 in Palmdale, Calif., won a groundbreaking decision that sets the stage for Amazon delivery drivers across the country to organize with the Teamsters. After more than a year-long investigation, National Labor Relations Board Region 31 (NLRB) found that Amazon is a joint employer of its Delivery Service Partner (DSP) drivers, and therefore has a legal duty to recognize and bargain with the Teamsters Union.