Permanent barriers are critical elements of offshore well integrity systems. They prevent undesired fluid movement within the annulus and wellbore and provide long term protection of life, the environment, and mineral resources. The Department of the Interior (DOI), Office of Acquisition and Property Management, on behalf of the Bureau of Safety and Environmental Enforcement (BSEE), is issuing this RFI to: 1. Collect industry feedback on the Draft Statement of Work for the Definition of Permanent Barriers. 2. Identify interested entities with the expertise required to perform this study. This RFI is for market research only and is not a solicitation for proposals. No contract will be awarded from this announcement. Please see the attached for additional information and full details regarding this posting.