The notice is a publicly available limited-sources justification, posted for at least 30 days under RFO FAR 6.301/FAR 6.104. CMS requires enterprise program management office (ePMO) support services for the ClaimsCore initiative, a large-scale modernization effort to replace Medicare Fee-for-Service legacy Shared Systems and the Common Working File with a secure, near-real-time Commercial Off-the-Shelf platform. This is not an active opportunity; it is a required posting of an approved Limited Sources Justification after task order award.