National Grid plc announced that a satisfactory agreement has been reached in its contract negotiations with two Massachusetts Gas unions over employment terms and conditions. The agreement is for a five-and-a-half-year contract for 1,250 employees in the company's Massachusetts Gas business. During the negotiation, National Grid implemented a Work Contingency Plan to ensure that customers continued to receive a safe and reliable service. The company looks forward to welcoming back employees on 21 January 2019.