The union filed a group grievance on behalf of Investigators in the Special Investigations Branch, arguing they should have been included in a classification adjustment negotiated for Tax Auditors in a Letter of Understanding.
The employer raised preliminary objections regarding the Board's jurisdiction to award a classification remedy.
The Board found the phrase 'positions of Tax Auditors' latently ambiguous and admitted extrinsic evidence of negotiating history.
Based on the evidence, the Board concluded the parties did not intend to include Investigators in the Tax Auditor classification adjustment, as the adjustment was specifically targeted at recruitment and retention issues for Tax Auditors.
The grievance was denied.
