The document summarizes the ITCA Weatherization Assistance Program, which provides weatherization services to low-income tribal members living on tribal lands in Arizona. The goals of the program are to weatherize homes and develop tribal capacity. Weatherization improves energy efficiency in homes through techniques like adding insulation, sealing air leaks, and installing shade screens. The work must follow the Department of Energy's guidelines and technical standards for health, safety and cost-effective energy efficiency upgrades. Implementing weatherization programs can be challenging for tribes due to varying levels of infrastructure, expertise and cultural factors. Building trust with elders and finding a champion for the program in each tribe are important.