Energy bandwidth studies can serve as foundational references in framing the range (or bandwidth) of potential energy savings opportunities in U.S. manufacturing. This bandwidth study examines energy consumption and potential energy savings opportunities in U.S. plastics and rubber products manufacturing. The study relies on multiple sources to estimate the energy used for processes in five plastics and rubber manufacturing subareas, representing 97% of sector-wide energy consumption in 2010. Energy savings opportunities for the subareas studied for various plastics and rubber products are based on technologies currently in use or under development; these potential savings are then extrapolated to estimate sector-wide energy savings opportunity.