This document provides guidance on establishing and maintaining successful LC2LC partnerships. It outlines key benefits such as increased efficiency and sustainable long-term relationships. Successful partnerships require both parties to play important roles, communicate frequently, understand each other's situations and timelines, and work together to solve crises. When establishing a partnership, LCs should research relevance, potential partners, discuss products and processes, and sign a contract confirming responsibilities and timelines. Maintaining partnerships involves regularly reviewing performance details and finding ways to further cooperation.