Teamsters Union members at some local bargaining units have once again rejected parts of their contract with package and delivery giant UPS as the busy holiday shipping season nears.

Five of seven UPS Local supplements and riders were approved by UPS Teamsters covered under them. The supplements and riders that passed were the Central Region, Local 243, Local 804, Metro Philadelphia and Michigan.

The Ohio Rider and Local 623 Supplement did not pass by votes of 1,085 to 2,189 and 332 to 781, respectfully.

UPS Teamsters members approved a new national contract this past summer, but it cannot take effect until all of the supplements have passed. This latest vote will send both sides back to the bargaining table.

This national contract and supplemental agreements are independent from those with UPS’ less-than-truckload business, UPS Freight, in which Teamster member employees voted against a new five-year deal this past summer, later agreeing to extend the current contract until further notice.