1333ND26RNB190034 002.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: Contractor is not is required to sign this document and return 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. The hour and date specified for receipt of Offers 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 OF PAGES

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

See Attachment Page.

1 9

1333ND26RNB190034002 AUG 24, 2026 NB194000-26-01901

Questions & Answers, Extend Offeror Due

Date 000014

NATIONAL INST OF STDS AND TECHNOLOGY

325 BROADWAY

BOULDER CO 80305-3328

See Block 6

1333ND26RNB190034

JUL 10, 2026

See Schedule

TRAVIS C. ZOELLNER

CONTRACTING OFFICER, NIST

24 AUGUST 2026

Attachment Page

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The purpose of this amendment is to incorporate the following changes:

A. Questions and Answers (1-27) are hereby incorporated.

B. The offers due date is extended from 27 AUGUST 2026 5:00 PM MT to 31 AUGUST 2026 5:00 PM

MT.

Table of Contents

SECTION J LIST OF ATTACHMENTS

J.1 Questions & Answers

J.2 Site Visit Sign In Sheet

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SECTION J

LIST OF ATTACHMENTS

J.1 Questions & Answers

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B4 Generator and ATS Replacement

1333ND26RNB190034 001 Q&A

1) How are proposals to be submitted?

Please submit proposals electronically via email to the Contracting Officer, Travis Zoellner at travis.zoellner@nist.gov.

2) "All work must be completed 90 days from the issuance of NTP" We believe this timeline may not be feasible due to current lead times of generators. Can the schedule be adjusted based on lead times of equipment?

The period of performance is negotiable, please provide an alternate period of performance.

Lead times for materials/equipment must be included in the timeframe.

3) There is currently a trench cut into the parking lot of building 4 that hinders access to the generator. Can you confirm when this trench will be filled? Would schedule adjustments be acceptable in the case where the trench is still present when the NTP is issue?

This work is scheduled to be completed at the end of August 2026. This should not conflict with this contract. Yes, schedule adjustments can be made if construction is still ongoing.

4) Room 1402A is currently occupied as an office. Can you confirm when the office will no longer be occupied? Would schedule adjustments be acceptable in the case where room 1402A is still occupied when the NTP is issued?

The office is supposed to be vacant by the end of the fiscal year. Yes, schedule adjustments can be made if office is still occupied.

5) Is this project a lowest bid awarded or a most qualified awarded?

The Contracting Officer intends to award a Firm Fixed-Price (FFP) contract to the responsible Offeror whose proposal the Contracting Officer determines represents the best value, price and other factors considered. Please see the Basis for Award on page 114 of the solicitation for further details.

6) Have the standards for electrical installations changed since the existing generator, ATS, and conduit were installed in 1997? Can you confirm the conduit type that was used from the as-built drawings of the installation? Yes, please see the NIST Attach 8 Low-Voltage Electrical Power Conductors and Cable. I cannot confirm the conduit that was used during original construction.

7) Requesting copy of bid walk sign in sheet.

The sign in sheet is attached to this amendment.

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8) Regarding the existing conduit from the ATS to the existing generator, can this conduit be repurposed for the new feeder back to the critical load?

Repurposing/extending as required is acceptable.

9) What installation windows are acceptable for interruption to the EM Panel loads?

Coordinate with the COR as to timing.

10) Regarding the NG and Diesel options:

a) Considering the blue text notations in Engine Specification 26 32 13 – 3.1 a.i) Diesel genset, based on the observation from the bid walk, it appears the only suitable location would be in the driveway/parking area currently under construction and due south of the current genset location, is this the expectation? We have a variance exemption for this work.

a.ii) Do the requirements specific to the diesel genset option Apply to the NG option?

(a.ii.1) Regarding requirements for exterior lighting, bollards and fencing, security, etc. We have a variance exemption for this work.

(a.ii.2) Requesting a copy of the current ESO Physical Security Documents.

Not distributable.

a.iii) Outside of the 25’ building clearance are there other civil specific requirements other than the ESO Physical Security Documents to adhere to as it pertains to the physical location of a belly tank fuel supply? You will need to install bollards around the pad if a diesel generator is installed.

(a.iii.1) Will the existing pad be suitable for a diesel option? Yes but bollards must be added for diesel option.

11) Regarding the AC Input to the new ATS located in Room 1402A, considering the location of Panel P and the proximity to the new ATS location, is it acceptable to provide a new breaker in Panel P to provide the 208V AC Input to the new ATS?

This will be acceptable. However, it will be incumbent on the contractor to ensure the breaker is appropriately sized (ampacity and AIC – shall be submitted for approval to NIST).

In this case, the contractor will be required to demolish the existing house power feeder from the existing ATS location back to its source.

12) Would the government consider an alternate location for the transfer switch in our proposals to help meet the requirements of NEC 700.3?

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Yes. This is acceptable.

13) Panel EM1 shows an air compressor for a fire suppression system. Is this load abandoned?

Will Firewatch be required for any outages of this during construction?

This load is not abandoned. Contractor must rent a portable generator to support the fire suppression system t keep the system online.

14) Can shutdowns be scheduled upon request or will shutdowns need to be scheduled during the semi annual shutdown windows? (The EM panel appears to feed the BAS controller for building 4).

Shutdown can be scheduled upon request

15) Please confirm that the government is responsible for the removal of the generator and ATS from building 4 once fluids are drained and gas/power disconnections are complete.

The contractor will remove all fluids, disconnect the gas connection, remove all building wiring, and remove the generator from the existing pad. The government will dispose of the generator through the excess property program.

16) The solicitation states a minimum of a 12kW generator, did the government verify this by performing load studies on panel EM1 and EM2? If not, would the government want the contractor to perform any load studies upon NTP prior to releasing the generator?

17) Task 1.4 states the installation must meet site standards for generators, please provide.

See attachments 8-13 in the solicitation

18) Will the generator require fencing, repairs/modifications to existing concrete pad, or any other site modifications? We have a variance exemption for this work.

19) Can the bid date be extended?

The proposal due date is extended to [DATE].

20) Is Buy American required for this solicitation

Please see FAR clause 52.225-9 Buy American Construction Materials on page 65 of the solicitation.

21) Are prevailing wages applicable to project? If so, provide wage sheets

Please see attachment 14 of the solicitation, provided on Sam.gov in the Section J attachments zip file.

22) 1.12(4) calls for the contractor to provide installation drawings, Is the intent of this solicitation to be a design build?

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No.

23) 1.10, 1.16, 1.18. Please provide any NIST standards that the COR deems applicable to project.

See attachments 8-13 in the solicitation

24) What is the governments estimated $ magnitude for this project?

Contracting Officer will answer this question

25) 1.12, Would NIST like panel EM2 to be fed by the same EM ATS or a separate ATS?

EM2 is currently fed via EM1, so there is no scope for an added ATS.

26) NFPA 110 Classification: The project SOW identifies the emergency power supply system as NFPA 110 Level 2. The NIST Engine Generator specification also contains requirements for NFPA 110 Level 1 alarm and remote annunciator functions.

Could you please confirm the required NFPA 110 Level, Class, and Type for the generator/EPSS? If Level 2 applies to the overall EPSS but the Level 1 alarm/annunciation requirements are still required, please confirm

The SOW refers only to Level 2 requirements.

27). Available Fault Current at ATS: Could you please provide the available fault current at the location of the new automatic transfer switch, or the required minimum SCCR/AIC rating to be used for selection of the ATS?

10kA is the minimum rating.

J.2 Site Visit Sign In Sheet

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