The purpose of this document is to assist product manufacturers, suppliers, and distributors with understanding the Build America, Buy America Act (BABA) requirements. This document consists of a series of frequently asked questions (FAQs) with responses based on Office of Management and Budget (OMB) guidance , , U.S. Environmental Protection Agency (EPA) implementation procedures, and other resources. This document does not address domestic sourcing requirements associated with federal procurement or financial assistance from other federal agencies. For current information on BABA implementation at the EPA, visit the EPA’s BABA website.