RFP_363235(MC)_Amendment 03.pdf

SLAC NATIONAL ACCELERATOR LABORATORY • 2575 SAND HILL ROAD • MENLO PARK • CALIFORNIA • 94025 • USA

Operated by Stanford University for the U.S. Department of Energy

AMENDMENT OF SOLIC. – SUBCONT.MOD. (REV. 05/24/12) SLAC-SCM-GEN-015 PAGE 1 OF 2

SUPPLY CHAIN MANAGEMENT

AMENDMENT OF SOLICITATION/SUBCONTRACT MODIFICATION

Acting Under Contract DE-ACO2-76-SF00515

1. Amendment/Modification Number:

Amendment 03

2. Effective Date:

3/11/2026

3. Solicitation/Subcontract Number:

SLAC_RFP_363235(MC)

4. Issued By:

The Board of Trustees of the Leland Stanford, Jr. University SLAC National Accelerator Laboratory 2575 Sand Hill Road Menlo Park, CA 94025

5. Administered By:

SLAC National Accelerator Laboratory 2575 Sand Hill Road Menlo Park, CA 94025 Bldg. 041, M/S: 01

6. Name and Address of Seller:

TO ALL OFFERORS

7A. Amendment of Solicitation Number: 363235 7B. Dated (See Item 9):

8A. Modification of Subcontract Number:

8B. Dated (See Item 14D):

9. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 11.

The hour and date specified for receipt of Offers is extended to March 17, 2026 at 5:00 PM Pacific Standard Time (PST), is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: (a) By completing items 8 and 13, and return ONE (1) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter which includes a reference to the solicitation and amendment numbers.

FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE

RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted you may do so as long as it is received prior to the opening hour and date specified.

10. THIS ITEM ONLY APPLIES TO MODIFICATION OF SUBCONTRACTS

A. This change order is issued pursuant to (specify authority) . The changes set forth in Item 11 are made in the subcontract order number stated in Item 8A.

B. The above numbered subcontract is modified to reflect the administrative changes set forth in Item 11.

C. This supplemental agreement is entered into pursuant of authority of: .

D. Other (Specify type of modification and authority): .

11. Description of Amendment/Modification:

The purpose of this Amendment No. 03 is being issued to:

(1) Incorporate the attached, "Attachment L-3, Offeror's Request for Clarifications," dated 3/11/2026, as a result of clarifications requested by one of the Prospective Vendors. Line Items 3 - 4 provides the questions and responses to the clarification that are in BLUE italics for easy identification.

All other terms and conditions of the solicitation remain unchanged.

(2) RFP due date remains the same, Tuesday, March 17, 2026, 5:00 PM PST.

Except as provided herein, all terms and conditions of the document referenced in Item 7a or 8a, remains unchanged and in full force and effect.

12. Accounting Information:

Previous total value: Change in total value: Revised total value:

Previous funded value: Change in funded value: Revised funded value:

SLAC NATIONAL ACCELERATOR LABORATORY • 2575 SAND HILL ROAD • MENLO PARK • CALIFORNIA • 94025 • USA

Operated by Stanford University for the U.S. Department of Energy

AMENDMENT OF SOLIC. – SUBCONT.MOD. (REV. 05/24/12) SLAC-SCM-GEN-015 PAGE 2 OF 2

Seller is required to sign and return a copy of this document. (Check if applicable)

The Board of Trustees of the Leland Stanford, Jr.

University SLAC National Accelerator Laboratory

13A. Signature of authorized person for seller:

14A. Signature of authorized person:

13B. Name of signer:

14B. Name of signer:

Marlene Curiel 13C. Title of signer:

14C. Title of signer:

Senior Subcontract Administrator 13D. Date

14D. Date:

March 11, 2026