The Water Infrastructure Resilience and Sustainability Act of 2026 aims to improve and extend funding for programs that enhance the resilience and sustainability of clean water and drinking water infrastructure in the United States. The main objective is to ensure that water systems can withstand challenges such as climate change, natural disasters, and other environmental stresses. Key provisions of the Act include the reauthorization of specific programs under two major laws: the Federal Water Pollution Control Act and the Safe Drinking Water Act.