DETROIT -- Membership in the UAW hit a post-World War II low at the end of 2005, according to UAW documents filed with the U.S. Department of Labor.
The union, whose membership totaled 1.5 million in the late 1970s, said its membership slid from about 622,000 in 2004 to 557,099 as of Dec. 31.
UAW spokesman Roger Kerson cautioned that the figure submitted to the Labor Department is a one-day snapshot and not entirely accurate because of seasonal fluctuations. He said UAW membership averaged 599,000 for 2005.
The UAW disclosed its membership in an annual filing.