RFI, RFP, RFQ & tender documents · Core
Expression of interest
Also called: EOI
ELI5
A preliminary submission indicating interest and capability.
Used in conversation
“Attach the latest expression of interest to the decision pack before the meeting.”
Pitch context
You will see “Expression of interest” in operating plans, procurement packs, supplier reviews and supply-chain reports when the discussion reaches rfi, rfp, rfq & tender documents.
Why it matters: In rfi, rfp, rfq & tender documents, a loose definition can change rights, obligations, approval, disclosure or enforceability.
Caution
Meaning, enforceability and required process vary by jurisdiction and agreement; this definition is not legal advice.
Sources & evidence · 3
Direct term-level sources and supporting source families.
- U.S. Acquisition.gov — Federal Acquisition Regulation Part 15 — Contracting by NegotiationDirect source · primary · checked 2026-08-16
- UK Government — Groceries Supply Code of PracticeDirect source · primary · checked 2026-08-16
- U.S. Bureau of Labor Statistics — Productivity programmeSupporting source family · primary · checked 2026-08-16