This part establishes mandatory policies and procedures for all EPA research and demonstration grants. The provisions of this part supplement the EPA general grant regulations and procedures in 2 CFR parts 200 and 1500. Accordingly, all EPA research and demonstration grants are awarded subject to the Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards to Non-Federal Entities (2 CFR part 200) and to the applicable provisions of this part 40.