Wegmans and a union at its Rochester headquarters have reached a tentative agreement on a new contract .

The deal announced over the weekend will be submitted to the union rank-and-file for a ratification vote. The announcement comes after months of negotiations. The two sides returned to the bargaining table Friday and Saturday at the urging of Lt. Governor Bob Duffy . The agreement would cover 900 warehouse workers, drivers and skilled tradesmen . Terms were not disclosed.