It says it's been given a 'clear and decisive mandate'
Unite the Union has confirmed Bus Vannin drivers have voted in favour of industrial action.
It's over an ongoing dispute over pay, conditions and changes to 'long-standing entitlements'.
The union says proposals from the Department of Infrastructure include reductions in established allowances and alterations to terms that members rely on.
Regional officer Debbie Halsall says: "Our members have sent a very clear message. Bus Vannin drivers will not accept being pushed backwards on pay and conditions, and they have now given Unite a strong mandate to act.
"These drivers carry huge responsibility every day, and they deserve to be treated fairly and with respect.
"We urge the employer and the Department to return to the table with a meaningful, authorised offer that addresses the issues drivers have been raising repeatedly."
Unite will now move into the statutory notification phase, and dates for industrial action will be confirmed if negotiations fail to produce an acceptable settlement.
The Department of Infrastructure says it's committed to continuing the conversation with the union representatives.
UPDATE 4:45pm: A spokesperson has issued the following update: "Bus Vannin is aware that industrial action is being considered by some members of staff.
"Before this can be undertaken, there is a formal process which needs to be complied with. Any planned industrial action would have to be notified to Bus Vannin at least seven days prior to this taking place.
"Bus Vannin would like to reassure service users that when details are provided about any potential disruptions to service, these will be communicated in a timely manner wherever possible.
"Bus Vannin remains committed to ongoing discussions with the Union to seek to resolve matters."
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