The Converting Our Waste Sustainably Act of 2026 amends the Food Security Act, providing incentives and support for sustainable waste management practices in agricultural operations. This includes promoting alternative manure management and composting practices to reduce methane and nitrous oxide emissions, improve carbon sequestration, and enhance overall environmental and public health outcomes. The Act outlines criteria for evaluating and prioritizing applications, establishes payment amounts and contract terms, and requires the Secretary of Agriculture to assist producers in implementing these practices. It also addresses funding limitations, innovation in conservation approaches, and the development of new practice standards.