The applicant union requested reconsideration of a previous Board decision that found three Bindery Supervisors did not exercise managerial functions and should be included in the bargaining unit.
The union sought to introduce evidence from one of the supervisors, obtained during a subsequent phase of the hearing, arguing it contradicted the Board's findings.
The Board dismissed the request, holding that the evidence was available during the initial phase of the hearing and could have been adduced with due diligence.
A dissenting member would have granted the reconsideration, arguing the Board has a statutory obligation to determine the appropriate bargaining unit regardless of when the evidence is presented.