Amendment 1- Physicist Survey-Final-3.20.24.pdf

DEPARTMENT OF HEALTH & HUMAN SERVICES

OUR REFERENCE: Pine Ridge IHS Amendment No. One (1) Solicitation Number:

RFQ-PR24-007

March 20, 2024

To Whom It May Concern:

Great Plains Area Indian Health Service Federal Building, Room 309 115 4th Ave. SE Aberdeen, SD 57401

Enclosed is the executed SF-30 document(s) signed and dated by the Contracting Officer in reference to solicitation number RFQ-PR24-007. Please retain for your own records.

Should you have any questions or need information, please contact Kim Carpio, Purchasing Agent or I at 605-226-7724 at your convenience.

Sincerely, Wenda Wright Contracting Officer Great Plains Area Indian Health Service

Attachment(s)

- SF-30

- Questions and Answers

- Revised Statement of Work

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

2. AMENDMENT/MODIFICAITON NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicble)

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

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICIATION NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 11)

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.

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 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram 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 your desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPIRATION DATA (If required)

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

IT MODIFIES THE CONTRACT/ORDER NO. 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

NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, 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)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

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 (No., 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)

NSN 7540-01-152-8070

Previous edition unusable

Questions and Answers to RFQ-PR24-007 – Medical Physicist Survey Services, Pine Ridge

IHS, Pine Ridge, South Dakota

1. Will there be a separate line item to attribute costs for the Radiation Dosimetry

Program Management? No please include the expected/projected costs in the line item for Radiation Safety Audit

2. What month does the survey have to occur in if the period of performance is 365 days. The previous survey was completed in July 2023, and program is requiring that the survey be conducted by that same date to ensure consistency of recurring needs.

The other remaining reports and programs will be serviced throughout the 365-day contract cycle. Dosimetry badge program must be provided upon day 1 of the contract start.

3. The SOW section 5.1 for General Requirements requires a Qualified Medical Physicist to perform the contract, is there the opportunity for that to be changed to work under a Qualified Medical Physicist? The SOW has been updated to reflect the clarification that the proposals must provide board evidence of their board certification with solicitation submittal and quotes. Any staff members also performing work under this contract must be overseen by a QMP to qualify for consideration.

4. Is the MQSA for future equipment purchase planning? If so, do we have a potential brand/type of mammography system (3-d vs. 2-d)? We have separated that survey requirement into a separate contract type so no there will not be any need for mammography survey or any difference of equipment that what is listed.

5. Are you able to share the name of the incumbent along with the previous solicitation number and bid amount? The previous solicitation number was RFQ-PR23-018. The incumbent is Radiation Physics Consultants, Inc. and the awarded amount was

$20,990.00.

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Statement of Work Medical

Physicist Services

Pine Ridge Service Unit

Section 1: General Information

1.1 General: This is a non-personal services contract to provide medical physics services for the Pine

Ridge Comprehensive Health Care Facility (PRCHCF). T h i s s u r v e y w i l l a l s o i n c l u d e t h e

K y l e H e a l t h C e n t e r a n d t h e W a n b l e e H e a l t h C e n t e r . The Government shall not exercise any supervision or control over the contract service providers performing the services herein.

Such contract service providers shall be accountable solely to the Contractor who, in turn is responsible to the Government.

1.2 Period of Performance:

Physical survey must be conducted annually each year (the first 3 months) and reports are due within 30 days of completion. Assistance to create corrective action plan, review plan with program director, and re-evaluate to ensure compliance is acceptable may occur within the following 11 months. Total Period of performance is a April 17, 2024 through April 16, 2025.

1.3 Place of Performance: Pine Ridge Comprehensive Healthcare Facility

PO Box 1201

Pine Ridge, South Dakota 57770

1.4 Hours of Operation: All work shall be performed during business hours of 8:00 am to 5:00 PM. If a service has begun during regular business hours and it must be completed before any patients can be imaged according to the American College of Radiology (ACR), The Joint Commission (TJC), or then physicist must complete the service.

1.5 Location of Services:

• Pine Ridge Hospital 607 Indian Health Rd Pine Ridge, SD 57770

• Kyle Health Center 1000 Health Center Rd Kyle, SD 57752

• Wanblee Health Center 210 1st ST Wanblee, SD 57577

• (These 3 locations are all more than 90 miles separation)

1.6 Type of Contract: The government will award a Firm Fixed Price One Year contract.

1.7 Invoicing: All invoices from the contractor shall be submitted electronically via the IPP

(Invoice Payment Platform) which will route to the COR for Payment Processing.

• -Invoice Contact Information: 605 455-8223

• -Invoice Questions email: janelle.byrne@ihs.gov Contract Officer Representative II mailto:janelle.byrne@ihs.gov

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Section 2: Definitions & Acronyms

2.1 Definitions:

Contractor. A supplier or vendor awarded a contract to provide specific supplies or service to the government.

Work Day. The number of hours per day the Contractor provides services in accordance with the contract is an 8 hour day.

2.2 Acronyms:

AAPM

ACR

CBCT

CFR

COR-NA

CT

FOV

HVL

IEC

MRI

NCRP

PET

QA

RSO

SMPTE

SOW

SPECT

TJC

American Association of Physicist in Medicine

American College of Radiology

Cone Beam Computed Tomography

Code of Federal Regulations

Contracting Officer Representative-Non Applicable

Computed Tomography

Field of View

Half Value Layer

International Electrotechnical Commission

Magnetic Resonance Imaging

National Council for Radiation Protection

Positron Emission Tomography

Quality Assurance

Radiation Safety Officer

Society of Motion Picture and Television Engineers

Statement of Work

Single-Photon Emission Computed Tomography

The Joint Commission

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Section 3: Government Furnished Property, Equipment, and Services

None

Section 4: Contractor Furnished Items and Services

The Contractor shall provide all equipment, supplies, management, supervision, personnel, and transportation necessary to assure that all services are in accordance with the contract and all applicable laws and regulations. The contractor shall ensure all work meets performance standards specified in this Statement of

Work (SOW).

Section 5: Specific Tasks

The Contractor shall comply with radiation protection standards in 29 CFR 1910.1096 and immediately report any unsafe conditions with the potential to adversely impact the facility radiation workers or patients to the Radiation Safety Officer (RSO).

5.1 General Requirements

A. All Radiation Physicists performing services under this contract shall work under a Qualified Medical

Physicist (QMP). A Qualified Medical Physicist is a person who is certified by the American Board of Radiology, American Board of Medical Physics, or the Canadian College of Physicists in

Medicine. The contractors must submit evidence of board certification with their quote and solicitation submittal.

5.2 Required Services

A. Dosimetry Badge Program: Radiation Dosimeter services to be provided for

CLIENT radiology Department by Vendor upon start of the contract.

1) Communicate with dosimeter provider and utilize website for tracking and data entry of CLIENT staff members

2) Maintain Account with under XX dosimeters

i. Departments: - add and update accounts as needed (PRSU Hospital Radiology, Kyle

Health Center Radiology, and Wanblee Health Center Radiology

ii. Participants: process paperwork and utilize provider website to add, change, and discontinue participants

iii. Badges: process paperwork and utilize website to add, change, and discontinue body and ring dosimeters. Exchange on a quarterly basis as industry standard

iv. Fetal Badges: process paperwork for declaration of pregnancy and process paperwork and utilize website to coordinate monthly fetal monitoring

v. Recalculations: communicate and process paperwork for:

a. Improper wear or handling of dosimeter

b. Lost or damaged dosimeter

c. Unworn dosimeter

d. Participants prior exposure for accurate cumulative lifetime exposure

Page | 4

3) Reporting

i. Send Form 5 annual report to all badged participants

ii. Review exposure reports for wear period

iii. Notify RSO of exposures exceeding ALARA limits

iv. Provide exposure history for terminated participants

v. Provide exposure history to other employers for past participants, when requested

vi. Request and collect prior exposure history for newly badged participants

NOTE: Pine Ridge will supply the names of new hires with estimated entry on duty dates so that badges can be on hand for implementation and separation dates with end dates so that badges may be canceled for the upcoming quarter.

B. Equipment Inspections A. All imaging equipment shall be inspected at least annually in May- July, not to exceed 14 months. Other inspections as defined below (new equipment, repairs, shielding (lead aprons), etc.) shall be completed as needed. A complete electronic report in “pdf” format shall be provided to Radiology Supervisor, Biomedical Engineering and the Radiation Safety Officer

(RSO) or a printed (hard copy) version of the report results shall be provided within 30 days after completion of the inspection.

B. Missed or errors in performance for required elements will be corrected at the expense of the contractor. If errors are found in reports, corrections in “pdf” form will be submitted expeditiously.

C. The Qualified Physicist shall perform imaging equipment (X-ray equipment, CT, and Dental units) inspections to ensure compliance with the current Regulatory agency requirements.

Any deficiencies or non-conformances discovered during the inspection shall be verbally communicated to Radiology Supervisor, Biomedical Engineering and the RSO prior to the qualified physicist leaving the facility. Deficiencies or non-conformances which represent unsafe conditions with the potential to adversely impact the facility radiation workers or patients must be reported to the RSO immediately upon discovery.

D. The physicist shall perform acceptance testing of all new or relocated imaging equipment prior to first clinical use. The acceptance testing shall comply with ACR requirements. Any deficiencies or non-conformances discovered during the inspection shall be verbally communicated to Biomedical Engineering and RSO prior to the qualified diagnostic medical physicist leaving the facility. Deficiencies or non-conformances which represent unsafe conditions with the potential to adversely impact the facility radiation workers or patients shall be reported to Biomedical Engineering and the RSO immediately upon discovery.

E. The physicist shall perform a full inspection of imaging equipment after repairs or modifications that may affect the radiation output or image quality where required. In cases where the unit may not be used clinically until inspected by a physicist, the inspection must be completed within 72 hours after the facility contacts the contractor. Any deficiencies or

Page | 5 non-conformances discovered during the inspection shall be verbally communicated to

Biomedical Engineering and the RSO prior to the qualified diagnostic medical physicist leaving the facility. Deficiencies or non-conformances which represent unsafe conditions with the potential to adversely impact the facility radiation workers or patients shall be reported to Biomedical Engineering and the RSO immediately upon discovery. Where acceptable, the physicist will review and accept the repairs report from Engineering.

F. The physicist shall provide consultation for additional services as needed, such as safety training, reading dosimetry badge reports, i.e.

G. The physicist shall review CT protocols at least annually.

B. Radiation Safety Audit H. The physicist will review the program and perform a Radiation Safety Audit for the facilities. (3 facility locations), physical cite visit to each location is required for Pine Ridge

Hospital, Kyle Health Center and Wanblee Health Center.

I. The physicist shall provide shielding design calculations for each new, replaced, or relocated x-ray imaging system. The calculations for each shall comply with the National Council for

Radiation Protection and Measurements (NCRP) Report No. 147, and, for dental units, NCRP

Report No. 145, and shall be documented in a written report which includes a diagram showing adjacent areas. The physicist shall perform a shielding survey to verify the structural shielding was installed per the shielding design report and complies with the design goals.

J. The physicist shall assist in the development of a comprehensive technical quality assurance

(QA) program (e.g., technique charts, repeat/reject analysis monitoring, monitoring of exposure indices to radiographic image receptors, QA program for display monitors, QA for

CT, monitoring of dose metrics from fluoroscopy studies), which complies with ACR recommendations, for all modalities. The physicist shall review, at least annually, the QA program.

K. The physicist shall review the report from Engineering to verify compliance of any necessary corrective action performed to correct deficiencies found. The contractor will perform a follow-up inspection if necessary according to ACR or other relevant standards.

5.3 Equipment Inspections Descriptions

The Contractor shall conduct equipment inspections or quality control surveys of the imaging equipment listed below. The Contractor shall ensure the imaging equipment’s compliance with applicable Federal regulations and ACR recommendations and shall include, but not be limited to, monitoring the following basic performance characteristics.

A. Radiographic and Fluoroscopic Equipment

Physics inspections of radiographic and fluoroscopic equipment shall comply with the ACR

Technical Standard for Diagnostic Medical Physics Performance Monitoring of Radiographic and

Page | 6

Fluoroscopic Equipment. The performance of each radiographic and fluoroscopic unit must be evaluated at least annually. This evaluation should include, but not be limited to, the following tests

(as applicable):

1) Integrity of unit assembly.

2) Collimation and radiation beam alignment.

3) Fluoroscopic system spatial resolution.

4) Automatic exposure control system performance.

5) Fluoroscopic automatic brightness control performance (high-dose-rate, pulsed modes, field- of-view [FOV] variation).

6) Image artifacts.

7) Fluoroscopic phantom image quality.

8) kVp accuracy and reproducibility.

9) Linearity of exposure versus mA or mAs.

10) Exposure reproducibility.

11) Timer accuracy.

12) Beam quality assessment (half-value layer).

13) Fluoroscopic entrance exposure rate (or air kerma rate). Maximum output and output using a phantom representing a standard size patient for all clinically used settings. [The mode of operation [e.g., magnification mode, frame rate, and any other mode selected) must be documented for each measurement.]

14) Fluorographic (image recording) entrance exposure rate (or air kerma rate) for cine imaging, if performed and entrance exposure (or air kerma) for spot images (if performed). Maximum output and output using a phantom representing a standard size patient for all clinically used settings. [The mode of operation (e.g., magnification mode, frame rate, etc.) must be documented for each measurement.]

15) Image receptor entrance exposure.

16) Equipment radiation safety functions.

17) Patient dose monitoring system calibration. This includes, for radiographic systems, the metric of dose to the image receptor (IEC Exposure Index or proprietary index) and, for fluoroscopy systems, the displays of cumulative air kerma and, if available, DAP.

18) Display monitor performance.

19) Digital image receptor performance.

20) Grids used with portable x-ray units shall be imaged for uniformity.

21) For radiographic units, measurement of entrance skin exposure (or air kerma) for a standard size patient for common radiographic projections and comparison to published diagnostic reference levels and achievable doses (e.g., ACR practice parameter.

Note: The information on entrance exposure rates (or air kerma rates) from fluoroscopy and from fluorography, in Items (13) and (14) above, for each fluoroscope, shall be in a format suitable for providing to the physicians who operate the fluoroscope.

B. Digital Radiography (DR)

Physics inspections of DR equipment shall comply with the American Association of Physicist in

Medicine (AAPM) Report Number 93, Acceptance Testing and Quality Control of Photostimulable

Page | 7

Storage Phosphor Imaging Systems. The performance of DR must be evaluated at least annually. This evaluation should include, but not be limited to, the following tests (as applicable):

1) Component and Imaging Plate Physical Inspection and Inventory.

2) Imaging Plate Dark Noise and Uniformity.

3) Exposure Indicator Calibration.

4) Linearity and Auto-ranging Response.

5) Laser Beam Function.

6) Limiting Resolution and Resolution Uniformity.

7) Noise and Low-Contrast Resolution.

8) Spatial Accuracy.

9) Erasure Thoroughness.

10) Aliasing/Grid Response.

11) IP Throughput.

12) Positioning and Collimation Errors.

C. CT Scanners

The physics inspection shall conform to the 2012 ACR Computed Tomography Quality Control Manual or latest revision. The performance of each CT scanner shall be evaluated at least annually. This evaluation should include, but not be limited to, the following tests (as applicable):

Review of Clinical Protocols.

1) Scout Prescription and Alignment Light Accuracy.

2) Image Thickness – Axial Mode.

3) Table Travel Accuracy.

4) Radiation Beam Width.

5) Low-Contrast Performance.

6) Spatial Resolution.

7) CT Number Accuracy.

8) Artifact Evaluation.

9) CT Number Uniformity.

10) Dosimetry (the scanner displayed CTDIvol values must be within +/- 20% of the measured

CTDIvol values).

11) Gray Level Performance of CT Acquisition Display Monitors.

D. Dental

The physics inspection shall conform to the Conference of Radiation Control Program Directors

(CRCPD), Quality Control Recommendations for Diagnostic Radiography Volume 1 Dental Facilities

July 2001. The performance of dental x-ray inspections shall be annually or every 2 years. This evaluation should include, but not be limited to, the following tests (as applicable).

1) Collimation.

2) Beam quality (half value layer).

3) Timer Accuracy and Reproducibility.

4) kVp Accuracy and Reproducibility.

Page | 8

5) mA or mAs Linearity.

6) Exposure Reproducibility.

7) Entrance Skin Exposure Evaluation, with comparison to published diagnostic reference levels and achievable doses (e.g., NCRP Report No. 172).

8) Technique Chart Evaluation.

9) Image uniformity (artifact evaluation).

Dental Cone Beam Computed Tomography (CBCT) Acceptance and Performance Testing

a) Acceptance Testing. Acceptance testing and measurements of air kerma at the isocenter for each kVp station for a range of clinically used mAs settings will performed initially when the CBCT unit is installed, and following any move of the CBCT to another area inside or outside the initial clinical site. This testing is to ensure that the equipment performance is in agreement with the manufacturer’s technical specifications.

b) Performance Testing. Each CBCT unit shall undergo periodic quality control tests to insure that the performance of the machine has not significantly deteriorated and is operating within the manufacturer’s technical specifications. This performance testing is performed by a qualified expert annually, at intervals not to exceed 14 months, and after repairs to the CBCT unit that may affect the radiation output or image quality.

c) Some manufacturers provide a phantom and procedures to perform machine specific quality assurance (QA) tests. In cases where the manufacturer provides a phantom and procedures to perform specific tests but the tests are not included in this SOW, then the manufacturer’s machine-specific QA tests shall be performed in addition to the QA tests in this SOW.

Acceptance and Annual physics testing for Dental CBCT

a) Radiation output Repeatability

Make four measurements of the air kerma at the isocenter at a clinically used setting. The measurements should be less than +/-5% of the average of the five measurements and the measurements should be less than +/- 5% of the previous year’s measurement.

b) Radiation Output Reproducibility

Measure the air kerma at the isocenter for each kVp station and a range of clinically used mAs setting. Compare the results to the baseline values established at the initial acceptance testing.

The values should be +/-5% of the baseline.

c) kVp Accuracy

Measure the kVp at all clinically used settings. The measured kVp should be +/-5% of the selected kVp.

d) kVp Repeatability

Make five kVp measurements each for two clinically used kVp settings. All measured values

Page | 9 should be +/-5% of the mean kVp.

e) kVp Reproducibility

Measure the kVp at all available kVp settings. The measured values should be +/-5% of the baseline.

f) Beam quality

Measure the half value layer (HVL) for aluminum. The minimum shall comply with Section

F.4.d of the Suggested State Regulations for Control of Radiation, Conference of Radiation

Control Program Directors.

g) Radiation field of view (FOV)

Measure the width of the radiation field at the isocenter. The width of the beam should be 3 mm or 30% of the total nominal collimated width.

h) Image Quality

Image the phantom provided by the manufacturer or another suitable phantom. Assess high contrast spatial resolution, uniformity of transaxial images, and image noise.

Imaging uniformity shall be assessed over the entire range of axial images.

i) Accuracy of Linear Measurements

Using images of an appropriate phantom, assess the accuracy of distance measurements.

j) Accuracy of Patient Dose Metric Indication

Assess the accuracy of the indicated dose metric (typically DAP).

k) Patient Dose Assessment

From a scan or scans using the facility’s standard techniques, record the dose metric (typically

DAP) and compare to achievable levels and diagnostic reference levels (if available)

l) Review of the technical QA program

The qualified expert shall review the technical QA program. The review shall include a trend analysis of the QA data. The results of the technical QA program review shall be included in the written report. Any trends that identify problems shall be included in the report along with recommended corrective actions.

m) Display Monitors

Perform a visual analysis of the SMPTE test pattern.

i. Display the test pattern on the imaging console. Set the display window width/level to

Page | 10 the manufacturer-specified values for the pattern. Do not set the window/level by eye;

doing so invalidates the procedure.

ii. Examine the pattern to confirm that the gray level display in the imaging console is subjectively correct.

1. Review the line pair patterns in the center and at each of the corners.

2. Review the black-white transition.

3. Look for any evidence of “scalloping” (loss of bit depth) or geometric distortion.

iii. Use a photometer to measure the maximum and minimum monitor brightness (0% and

100% steps)

iv. Measure additional steps within the pattern to establish a response curve.

v. Measure the brightness near the center of the monitor and near all 4 corners (or all 4 sides, depending on the test pattern used).

n) Viewing Conditions

Assess the viewing conditions for the area in which the monitor used to evaluation the CBCT studies is located.

5.4 Equipment List

Description X-ray Units Planned replacement or addition

PINE RIDGE X-RAY UNITS

CT: Cannon Aquillion 64 1

Fluoro & X-ray : GE Precision 500P

Portable Fluoro: OEC C-arm 1

Fixed X-ray: GE Proteus 1

DR Schimadzu Portable Rad 2

PINE RIDGE DENTAL

Gendex Expert DC Dental

Bite wing

Sirona Orthophos XG Dental 1 Pano

Sirona Orthophos XG 3 D Ready Dental 1 Cone Beam

Kavo Nomad Dental Handheld Unit 1 New 2021-22

KYLE X-RAY UNITS

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GE Proteus Xray 1

Progeny Dental Preva (Dental) 2 Bitewing

Sirona Orthophos XG (Dental) 1 Pano

WANBLEE X-RAY UNITS

GE Proteus Xray 1

Sirona Orthophos XG 5 (Dental) 1 Pano

Progeny Dental Preva (Dental) 1 Bitewing

607 Indian health Road Pine Ridge, SD 57770

A. To post Questions and Answers;

B. To post the revised Statement of Work (see highlighted areas);

B. RFQ Response due date is extended from March 18, 2024 to March 25, 2024, 3:00pm MST.

There are no other changes made by reason of this amendment.