Clauses · FAR · Administration and definitions
FAR 52.243-7 Notification of Changes
Does the regulation require it to flow down?
No
No flow-down mandate — 43.107 addresses the contracting officer, and Part 43 has no subcontract-insertion sentence. Primes flow it down to get early warning of an REA rather than a surprise claim at the end. The two General Dynamics Mission Systems templates (SCM-TMP-005 fixed-price and SCM-TMP-048 T&M, both dated 2026-07-20) do it properly: 'Notification of Changes (Insert "10 calendar days" in the spaces provided in paragraphs (b) and (d)) (If Order Exceeds $1,000,000)' — the blanks filled and the 43.107 threshold carried down intact. That 10-day figure is the deadline that binds those subs.
A clause can reach your subcontract without a mandate. Once it is in your document, it is a contract term all the same. The missing mandate is a fact about the regulation. It is not a ruling on your order.
Checked against acquisition.gov on 2026-08-05 · edition JAN 2017 (no alternates) · base v0.9.3 Read the text ↗
What it makes you produce
One item for your checklist.
Something you write
Days to weeks, and nobody outside your company has to agree to it.
A written notice of conduct you regard as a change, inside the negotiated window, carrying the date and circumstances, every person involved, the documents and oral communications, the line items affected, the labor and materials added, deleted or wasted, and the estimated adjustments to price and schedule
FAR 52.243-7(b)
When it is used
FAR 43.107: the contracting officer MAY insert the clause — it is discretionary, not mandatory. It is normally used in negotiated research and development or supply contracts for the acquisition of major weapon systems or principal subsystems, and contracts expected to be less than $1,000,000 shall not use it unless the contracting officer anticipates situations that may result in contractor claims of Government-effected changes. The $1,000,000 figure is a regulatory (not statutory) threshold and was not touched by the 2025-10-01 inflation escalation. Two blanks in the clause must be filled by negotiation: the contractor's notice period in paragraph (b) and the Government's response period in paragraph (d).
Read closely
Under (c) performance continues to the maximum extent possible while the notice is pending. Both windows are blanks filled by negotiation: two General Dynamics Mission Systems templates write 10 calendar days into paragraphs (b) and (d) and carry the $1,000,000 threshold down intact. The clause asks for one notice and keeps no log — but the elements (b) lists are names, functions, documents and oral communications, which are hard to assemble months after the fact, and a bare notice missing them is what lets a prime argue the claim was waived.
The 2 templates that name it, with the line
Source: acquisition.gov, FAR 52.243-7 (paragraphs (b), (c), (e) read in full) and FAR 43.107; FAR Part 43 checked for subcontract language (verified 2026-08-05)
This is research, not legal advice. It states what the regulation says about this clause and cites the paragraph behind it. It does not rule on your order, and it does not rule on whether a prime's markings are correct.