A community resource for the acquisition workforce — not a .gov website
part52.dev Federal Acquisition Clause Monitor

FAR 52.252-4 — Alterations in Contract.

AI Assistant Context › Clauses › FAR 52.252-4 — Alterations in Contract.

This page provides structured context for use with AI assistants like Gemini or ChatGPT. Copy the URL and provide it to your assistant, or use the "Copy for AI assistant" button below to copy the text content directly. A plain-text Markdown version is also available.
Download .md

52.252-4 Alterations in Contract.

Type: Clause

Prescribed in: 52.107(d)

Current version date: APR 1984

Revolutionary FAR Overhaul (RFO) Version

A revised version of this clause has been published under the Revolutionary FAR Overhaul (EO 14275). The RFO version supersedes the eCFR text below for contracts using the RFO FAR model. The RFO text is not duplicated here; see the clause page for a side-by-side comparison: https://part52.dev/clause/52-252-4/#rfo

Prescription and Applicability

FAR Prescription, 52.107(d)

(d) The contracting officer shall insert the clause at 52.252-4, Alterations in Contract, in solicitations and contracts in order to revise or supplement, as necessary, other parts of the contract, or parts of the solicitations that apply to the contract phase, except for any clause authorized for use with a deviation.

Current Text

52.252-4 Alterations in Contract.

As prescribed in 52.107(d), insert the following clause in solicitations and contracts in order to revise or supplement, as necessary, other parts of the contract, or parts of the solicitation that apply after contract award, except for any clause authorized for use with a deviation. Include clear identification of what is being altered.

Alterations in Contract (APR 1984)

Portions of this contract are altered as follows:

(End of clause)

Active Class Deviations Affecting This Clause

Class Deviation 2026-O0023, DFARS RFO Implementation (Part 37)

  • Status: Active
  • Date Issued: 2026-02-01
  • Change type: MODIFIED
  • Action: Add clause 52.252-4

Suggested Questions

You can ask your AI assistant:

  • Should I include this provision in my solicitation?
  • Does this clause apply to commercial acquisitions?
  • Does this clause apply to R&D contracts under Part 35?
  • Which alternate should I use for a multiple-award contract?
  • Are there any active Class Deviations that modify this clause?
  • What changed in the most recent amendment?

Source: https://part52.dev

Generated: 2026-06-10 03:19 UTC

Reference: https://www.ecfr.gov/current/title-48/section-52.252-4