MOLINE, Ill. (AP) — Farm equipment manufacturer Deere & Co. says United Auto Workers members have approved a new six-year labor agreement that covers facilities in three states.

Deere and UAW reached a tentative agreement last week. The company said in a statement Sunday it received notification that UAW members had ratified the deal. Negotiations began in late August.

The statement says terms of the agreement will not be made public.

The master labor contract covers manufacturing employees at factories in Davenport, Ankeny, Dubuque, Ottumwa and Waterloo, Iowa; East Moline, Moline and Milan, Illinois; and Coffeyville, Kansas.

Declining sales have led Deere to lay off workers in Iowa and Illinois this year.