To direct the Under Secretary of Defense for Research and Engineering to issue guidance for private entities on demonstrating how biobased products meet Department of Defense requirements, and for other purposes.

H.R. 5191 would direct the Under Secretary of Defense for Research and Engineering to create guidance for private entities on how to demonstrate that biobased products meet Department of Defense requirements. Biobased products are those made from renewable biological resources rather than petroleum-based materials.

If enacted, this bill could facilitate greater use of sustainable, plant-based materials in military procurement and operations. By establishing clear standards and guidance, the legislation would potentially make it easier for companies to develop and sell biobased alternatives to traditional materials used by the military, which could have environmental and economic benefits. The bill is currently in the early stages of the legislative process, having been introduced in the House in September 2025 and referred to committee for consideration.