{"data":{"id":"us/23-cfr-636.409","jurisdiction":"us","citation":"23 CFR 636.409","heading":"Can offerors revise their proposals during communications?","body":"(a) No, communications shall not provide an opportunity for an offeror to revise its proposal, but may address the following:\n(1) Ambiguities in the proposal or other concerns (e.g., perceived deficiencies, weaknesses, errors, omissions, or mistakes); and\n(2) Information relating to relevant past performance.\n(b) Communications must address adverse past performance information to which the offeror has not previously had an opportunity to comment.","path":["Title 23—Highways","CHAPTER I—FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER G—ENGINEERING AND TRAFFIC OPERATIONS","PART 636—DESIGN-BUILD CONTRACTING","Subpart D—Exchanges"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-23.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:50Z","sha256":"12e403fdaa179f7d5b6458e9f78d9954e77927b9b202c07d0f11664a7504392b","source_id":"us-cfr","stale":true,"prev":"us/23-cfr-636.408","next":"us/23-cfr-636.501"},"notice":"GroundRules: Original legal text. Not legal advice."}