Amazon Served With First-Ever Joint-Employer Labor Complaint (1)

Amazon.com Inc. is facing its first formal labor complaint involving accusations the e-commerce giant is a joint employer of its delivery drivers and broke federal law by terminating their contract.

A National Labor Relations Board regional director hit Amazon and its delivery service provider Battle Tested Strategies with the complaint Sept. 30 based on a merit determination last month that found the company should be held jointly responsible for drivers at the Palmdale, Calif., DAX8 warehouse, the agency announced Wednesday.

The case could be the first to begin unraveling Amazon’s nationwide network of thousands of contractors, and more broadly make ...