staff association
noun[C]
HR,WORKPLACEukusagroupofemployeesthatprovidessupportandadviceforpeopleworkingwithin the sameorganization,especiallyin anyofficialdiscussionswithmanagementrelatingtotheirresponsibilities,pay, etc.:
Benefits will bedeterminedthroughnegotiationbetween theemployerand therecognizedtradeunionsorstaffassociation.