Can local unions decide whether to allow employers to remain as members?

Local unions have the authority to determine their own membership criteria and can decide whether to allow employers to remain as members. This decision typically reflects the local union's interests and the collective bargaining agreements in place. Local unions operate under the guidelines set forth by the International, but they have a certain degree of autonomy when it comes to managing their relationships with employers. Factors influencing this decision may include the employer's compliance with labor agreements, labor practices, and mutual benefits to the union's members.

The misconception in the other options lies in the notion that local unions have to adhere strictly to external governance for such decisions. While a majority vote could be a method for local unions to communicate the collective stance of their members, the overarching structure allows for local control in deciding on employer memberships without needing a formal vote every time or requiring clearance from the International, provided their actions are consistent with the overall union framework.