What percentage of staff is required to sign cards for union enrollment?

The requirement that 30% of staff sign cards for union enrollment is based on the threshold set for a union to file a petition for an election with the National Labor Relations Board (NLRB). This minimum percentage demonstrates that a significant portion of the workforce is interested in union representation, prompting the NLRB to consider organizing an election where employees can vote on whether to become unionized.

This figure is critical because having 30% of employees show interest through signed cards indicates sufficient support for the union's formation or representation efforts. It serves as a starting point for unions to mobilize workers and showcase potential interest in collective bargaining rights.

Understanding this threshold helps in grasping how labor relations function and the pathways available for employees seeking to unionize. The other percentages listed do not align with the established legal standard, which is specifically set at 30% for this purpose.