The Fuel Cell Technologies Office is a key component of the Department of Energy?s (DOE) Energy Efficiency and Renewable Energy (EERE) portfolio. EERE seeks to provide clean, safe, secure, affordable, and reliable energy from diverse domestic resources, along with the benefits of increased energy security and reduced criteria pollutants and greenhouse gas emissions. DOE seeks input from interested stakeholders on existing and potential hydrogen contamination detectors and related factors such as performance characteristics, system integration requirements, costs, deployment guidance, and R&D needs. Information on where to submit questions regarding the content of the Request for Information (RFI) and where to submit responses can be found in the full RFI document posted on the EERE Exchange website at https://eere-exchange.energy.gov. THIS RFI IS NOT A FUNDING OPPORTUNITY ANNOUNCEMENT (FOA); THEREFORE, DOE IS NOT ACCEPTING APPLICATIONS.