This document discusses principles for conducting needs assessments of the environment and health in post-disaster situations. It outlines that assessments should evaluate the type of disaster, damage to the ecosystem and infrastructure, health impacts like disease spread and availability of resources, and prospects for reconstruction. Reconstruction efforts should follow ecological principles, stabilize ecosystems, and implement development strategies that prevent future disasters through religious and environmentally conscious national planning. Needs assessments provide data to guide proper reconstruction leading to better environments and public health.