(Reuters) - FedEx (>> FedEx Corporation) pilots tentatively agreed with the package delivery company on an amended collective bargaining agreement, the Air Line Pilots Association (ALPA) said.

Fedex and its pilots have been negotiating on employment conditions since 2011. FedEx management filed for a mediation process with the National Mediation Board in October 2014.

The terms of the agreement are not being released pending approval by the union's executive council, ALPA said on Thursday.

The contract would become amendable in 2021 if the tentative agreement is ratified by more than 4,000 FedEx pilots, ALPA said.

FedEx was not immediately available for a comment.

(Reporting by Ankit Ajmera in Bengaluru)

Stocks treated in this article : FedEx Corporation, United Parcel Service, Inc.