The Department of Energy (DOE) is currently requesting information and feedback from interested parties on a fenestration attachment energy rating and labeling effort. DOE is considering a future Funding Opportunity Announcement (FOA) regarding this topic and is seeking input from stakeholders on the appropriate scope and details regarding the potential FOA. This Request for Information (RFI) is not a FOA; therefore, the DOE is not accepting applications for funding regarding this topic at this time. Information on where to submit questions regarding the content of the announcement and where to submit questions regarding submission of responses can be found in the full RFI posted on the EERE Exchange website at https://eere-exchange.energy.gov. All responses to this RFI must be delivered electronically in Microsoft Word (.doc) format as an attachment to an e-mail sent to the following email address: btpfencert@go.doe.gov. E-mails should have the subject line ?Fenestration Attachment Certification." Any questions about the content of this RFI must be sent to the following email address: btpfencert@go.doe.gov. Emails should have the subject line ?Question?. THIS RFI IS NOT A FUNDING OPPORTUNITY ANNOUNCEMENT (FOA); THEREFORE, DOE IS NOT ACCEPTING APPLICATIONS.