The maintenance and food service workers at Prestigious University are represented by the International Brotherhood of Teamsters Union.

The union and the university administration have just agreed on a new collective bargaining agreement covering the next four years.

A number of workers in the skilled maintenance department are dissatisfied with their union because they feel that the union accepted lower wage raises in return for getting a long term contract.

They contact a representative of the Service Employees International Union to discuss ousting the Teamsters as their bargaining representative.

What must the workers do to get the NLRB to hold a de-certification election?

(2 Paragraph minimum)