40:63-111.Ā  Participating municipalities may be admitted to membership in joint meeting
The joint meeting may permit additional municipalities participating in theĀ  use and cost of the trunk sewer system provided by the joint meeting to becomeĀ  members of the joint meeting upon terms to be agreed upon between the jointĀ  meeting and said municipality or municipalities, and upon becoming a member ofĀ  the joint meeting such municipality or municipalities shall share equally withĀ  all other members of such joint meeting in the conduct of the business andĀ  affairs of such joint meeting respecting such joint meetings, its powers andĀ  authorities.
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