What body has the power to determine whether an employer can retain membership?

The Local Union possesses the authority to decide whether an employer can maintain membership. This body typically represents the interests and requirements of its members at a more localized level and is closely engaged with the specific circumstances and contributions of employers within the jurisdiction. The decision rests on various factors including the employer's adherence to labor agreements, standards of worker treatment, and overall engagement with the union’s objectives. The Local Union ensures that the membership remains aligned with the union's mission and the needs of its workforce, thus empowering it to make this significant determination regarding employer membership.

The other bodies mentioned may play roles in governance or support but do not have the direct oversight and localized perspective that the Local Union possesses when it comes to evaluating employer memberships.