6913G626R200002 0007.pdf

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 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT 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, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: is not is required copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7.ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

PAGESOF

Contractor

The hour and date specified for receipt of Offers is not extended. is extended.

to sign this document and return

Patricia Barnett

See continuation page

VOLPE NAT'L TRANSPORTATION SYS CNTR

220 Binney St.

Cambridge MA 02142-1001

6913G6

6913G626R200002

08/06/2026

06/17/2026

1 3

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGES

NAME OF OFFEROR OR CONTRACTOR

SUPPLIES/SERVICES

(B)

UNIT

(D)

UNIT PRICE

(E)

AMOUNT

(F)

OPTIONAL FORM 336 (4-86)

Sponsored by GSA FAR (48 CFR) 53.110

ITEM NO.

(A)

QUANTITY

(C)

NSN 7540-01-152-8067

6913G626R200002/0007

The purpose of this Amendment 0007 is to:

(1) Update the Statement of Work (SOW) for CLIN 00200; and

(2) Reopen the Phase II Response period for CLIN 00200 only until August 10, 2026 at 9:00 AM ET.

See attached continuation pages for detailed revisions.

Except as provided herein, all other terms and conditions remain unchanged.

The Phase II Proposal Due Date for CLIN 00200 only is August 10, 2026, at 9:00 AM.

Period of Performance: 09/30/2026 to 09/30/2031

AMENDMENT NO. 0007

SOLICITATION NO. 6913G626R200002

RAIL ROLLING STOCK MODERNIZATION & SUSTAINMENT (RMS) IDIQ

The purpose of this Amendment 0007 is to replace the CLIN 00200 Statement of Work (SOW) and reopen the proposal submission window for CLIN 00200 only.

DESCRIPTION OF AMENDMENTS / MODIFICATIONS

SECTION 1: TECHNICAL & PROCEDURAL REVISIONS

• SOW Replacement: CLIN 00200 SOW - Boxcars.pdf (dated July 16, 2026) is deleted in its entirety and replaced with CLIN 00200 SOW – Boxcars (revised August 2026).pdf. All specific technical modifications appear in red text within the updated document.

• Proposal Deadline (CLIN 00200 Only): The Phase II proposal submission window is reopened exclusively for CLIN 00200. Revised proposals for CLIN 00200 must be submitted no later than Monday, August 10, 2026, at 9:00 AM Eastern Time via email to patricia.barnett@dot.gov, Cc: matthew.phelps@dot.gov.

SECTION 2: SOLICITATION TERMS & ACKNOWLEDGMENT

1. ELIGIBILITY REMINDER: As established in Phase I of this solicitation, only prospective Prime Contract holders under the Rail Rolling Stock Modernization & Sustainment (RMS) IDIQ pool who successfully participated in the Phase I advisory down-select process are eligible to submit Phase II proposals.

2. PROPOSAL SUBMISSION DEADLINE: The CLIN 00200 Phase II Proposal Due Date is Monday, August 10, 2026, at 9:00 AM Eastern Time.

o UNCHANGED CLIN 00200 PROPOSALS: Offerors participating in CLIN 00200 who elect not to modify their previously submitted technical or pricing volumes are not required to resubmit proposal packages. However, such offerors must still acknowledge Amendment 0007 prior to the submission deadline by submitting a signed SF-30 (or written acknowledgment) with a statement confirming that their original CLIN 00200 proposal remains valid and unchanged under the revised

SOW.

o QUESTIONS CONCERNING AMENDMENT 0007: Any technical questions regarding the revised CLIN 00200 SOW must be submitted via email no later than Friday, August 7, 2026, at 12:00 PM Eastern Time.

3. ACKNOWLEDGMENT OF AMENDMENT: Acknowledgment of Amendment 0007 is mandatory for offerors submitting proposals for CLIN 00200. Offerors participating solely in other CLIN pools are requested to acknowledge for full administrative record-keeping, but non-receipt will not affect eligibility for other CLIN awards. Affected offerors must acknowledge receipt of Amendment 0007 prior to the hour and date specified for proposal submission by completing and returning a copy of this SF-30 or by explicit acknowledgment in the revised Phase II Proposal Cover Letter, if applicable.

EXCEPT AS PROVIDED HEREIN, ALL OTHER TERMS AND CONDITIONS REMAIN

UNCHANGED AND IN FULL FORCE AND EFFECT.

End of Amendment No. 0007

Sponsored by GSA FAR (48 CFR) 53.110