Unions are furious at plans which could see full-time officials made redundant at Mid Yorkshire Hospitals NHS Trust.
The trust, which runs Pontefract, Pinderfields and Dewsbury hospitals, wants to change the way it works with staff.
Currently it funds two full-time union officials, but it now wants to use that money to encourage more part-time union participation.
It has confirmed Unison’s Adrian O’Malley and Maria Thompson of the Unite union were at risk of redundancy.
A statement released by Graham Briggs, director of human resources, said: “This new partnership agreement seeks to redefine our future relationship, seeking to move away from appeals, disputes, strikes and delay and encourage purposeful engagement in the full scope of the trust’s healthcare priorities and the best outcomes for patients and staff alike.”
However, Jim Bell of Unison claimed it was a response to notice of a ballot to the union’s 3,000 members, in its ongoing dispute. He said: “We gave them notice of aballot of industrial action, then they gave us notice of cuts to our facilities. This is a direct consequence of our notice to them.”