6913G626R200002 0001.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. is extended. is not extended.

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 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

06/25/2026

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

6913G626R200002/0001

The purpose of this Amendment 0001 to RFP

6913G626R200002 is to provide answers to three questions submitted. See attached continuation sheet.

All provisions and requirements remain unchanged. The Phase I Proposal Due Date remains unchanged: July 1, 2026, 5:00 PM ET.

Period of Performance: 09/30/2026 to

09/30/2031

RFP 6913G626R200002 PAGE 3 OF 3

Amendment 0001 Questions Received and Answers (3)

Question 1. Can you please provide some clarification on CLIN 00400? Is this a standalone CLIN? Or will CLIN 00400 be covered under CLIN 00401, 00402, 00403, 00404 and 00405?

Page 9 of 96.

Answer 1. CLIN 00400 is a descriptive CLIN, not a standalone one; the work will be priced, funded, and performed under SLINs 00401–00405.

Question 2. This question is for the cover letter requirements, what is Volpe looking for with “Prompt Payment Terms”? Page 91, L.4(I).

Answer 2. If an Offeror does not wish to offer an early payment discount, they should indicate standard government terms (e.g., "Net 30 Days" or "None"). If applicable, an Offeror must detail any voluntary prompt payment discounts offered for expedited processing (e.g., "1% 10 days, Net 30"). The terms stated in the cover letter must mirror the information the Offeror provided in Block 13 of the Standard Form 33. Prompt payment discounts will not factor into the evaluation of the offeror's proposed price;

they are just administrative data.

Question 3: For the railcar maintenance piece, will the cars be sent to a contractor shop for inspections/repairs? Or will the work be done onsite by a mobile repair unit?

Answer 3: In accordance with Section C.2, Section C.3(a), and Section C.6(a)(3) of the Statement of Work (SOW), all safety inspections, maintenance, and repairs must be performed in the field, on-site where the locomotives and railcars are located. Per Section C.6(a)(3), the Contractor is responsible for providing all necessary tools, diagnostic equipment, and test equipment to perform these repairs and diagnostics in the field. The government will not ship rail equipment to off-site contractor facilities for routine safety inspections or sustainment support.

Sponsored by GSA FAR (48 CFR) 53.110