The applicant union sought certification but erroneously included managerial supervisors in its proposed bargaining unit description.
Relying on this inclusion, two supervisors organized a petition opposing the union.
At the hearing, the union amended its description to exclude the supervisors, rendering their petition invalid as a voluntary expression of employee wishes due to managerial taint.
Because the Board's original notice had explicitly invited the supervisors to respond based on the union's drafting error, the Board ordered the application to be re-posted in its amended form with a new terminal date to allow employees a fair opportunity to respond.
