A tripartite agreement is a deal or contract made among three parties. It means that three separate entities have agreed to work together and abide by certain terms and conditions. Full definition
The center is the result of a 1985 tripartite agreement between the United States Olympic Committee (USOC), the City of Miami, and the United States Sailing Center, a nonprofit comprised of a local volunteer management team. (miamiherald.com)
In my own local authority we have resolved the situation by working as part of a formal tripartite agreement with the fire service and the insurance company to ensure that all new builds and major refurbishments will have considered a fire suppression system. (educationbusinessuk.net)
This aims to build on the intentions of the former Tripartite Agreement and current «Letter of Intent», and specifically targets early career Aboriginal and Torres Strait Islander researchers to: (croakey.org)