UPS workers are gearing up for a potential strike that would be the biggest U.S. labor walkout since the 1950s.
"The strongest leverage our members have is their labor and they are prepared to withhold it to ensure UPS acts accordingly.".
Some 97% of voting members approved a strike, although the voting turnout was not immediately known.
Earlier this week, the Teamsters secured a major win when UPS committed to install air conditioning and two driver-facing fans in most trucks.
Heat safety has been a significant concern for UPS workers, with many incidents of drivers falling sick from heatstroke.
A strike at UPS would be the biggest work stoppage in the U.S. since a 1959 steelworkers' strike that saw half a million workers walk out for nearly four months.
UPS workers last went on strike in 1997 in a 15-day walkout that crippled the company and ended in a win for the union. »