---
kind: "section"
citation: "48 C.F.R. § 570.303-4"
title: "48"
number: "570.303-4"
heading: "Changes to SFOs."
url: "https://uscodex.org/cfr/48/570.303-4"
---

# §570.303-4. Changes to SFOs.

- (a) If the Government's requirements change, either before or after receipt of proposals, issue an amendment. Document the amendment using the same method as for the SFO, written or electronic.
- (b) If time is critical, you may provide information on SFO amendments orally.
  - (1) **Make a record of the information provided.**
  - (2) **Provide, or attempt to provide, the notice to all offerors or prospective offerors on the same day.**
  - (3) **Promptly confirm the information provided orally in a written amendment.**
- (c) **Distribute an amendment as follows—**
  - (1) If before the proposal due date, send the amendment to all prospective offerors who were sent a copy of the SFO.
  - (2) If after proposal receipt, send the amendment to each offeror who submitted a proposal.
- (d) If an amendment is so substantial that it requires a complete revision of the SFO, cancel the SFO, readvertise if required by 570.106, and issue a new SFO.
- (e) If there are changes to the Government's requirements for amount of space, delineated area, occupancy date, and/or other major aspects of the requirements, the contracting officer shall consider whether there is a need to readvertise, and to document the file accordingly.

## Notes

### Amendments

[64 FR 37265, July 9, 1999, as amended at 76 FR 30851, May 27, 2011]

### Authority

Authority: 40 U.S.C. 121(c).

### Source

Source: 64 FR 37265, July 9, 1999, unless otherwise noted.

### Amendments

[64 FR 37265, July 9, 1999, as amended at 76 FR 30851, May 27, 2011]