Amendment 3

PACIFIC NORTHWEST NATIONAL LABORATORY

OPERATED BY BATTELLE FOR THE U.S DEPARTMENT OF ENERGY

AMENDMENT

TO: All Potential Suppliers

AMENDMENT

NO.:

LETTER

NUMBER:

of

EFFECTIVE

DATE:

11/11/2026

RFP NUMBER:

963801

SUBJECT/TITLE

Extend Proposal Due Date

DESCRIPTION OF AMENDMENT

The subject RFP document(s) are herein modified to incorporate the following: 1. Amendment 3 is issued to extend the proposal due date to November 20, 2026.

Offerors must acknowledge understanding and full consideration of this Amendment by one of the following methods: (a) By returning the signed original of this Amendment with the proposal; or (b) By separate letter, email or facsimile (fax) which includes a reference to the Request for Proposal, this Amendment, and confirms receipt, understanding, and full consideration of this Amendment. If by virtue of this Amendment you desire to change a proposal already submitted, it is not necessary to re-submit documents previously submitted, unless otherwise noted above or offeror deems complete re-submittal more appropriate. Such change(s) may be made by email, fax, or letter addressed to the assigned Contracts Specialist, provided each email, fax or letter clearly makes reference to the Request for Proposal and this Amendment, and is received by the assigned Contracts Specialist prior to the exact time set for receipt of proposals. FAILURE TO ACKNOWLEDGE RECEIPT OF THIS AMENDMENT MAY RESULT IN REJECTION OF YOUR OFFER. The completion date, all other terms, covenants and conditions of the subject request for proposal documents, except as duly modified by this and previous Amendment(s) (if any) remain in full force and effect.

BATTELLE MEMORIAL INSTITUTE,

PACIFIC NORTHWEST DIVISION

Digitally signed by Chris Martin
Date: 2026.11.11 09:45:41
-08'00'

Authorized
Signature:

OFFEROR:

Authorized
Signature:

Printed
Name:

Chris Martin

Printed
Name:

Printed Title:

Contract Specialist

Printed Title: