# In the Matter of Metro Cardiovascular Diagnostics Order Imposing Civil Monetary Penalty
**AGENCY:**
Nuclear Regulatory Commission.
**ACTION:**
Notice; issuance.
**SUMMARY:**
The U.S. Nuclear Regulatory Commission (NRC) issued an Order Imposing Civil Monetary Penalty (Order) to Metro Cardiovascular Diagnostics. This Order was issued because the licensee was previously issued a Notice of Violation and Proposed Imposition of Civil Penalty (Notice) in the amount of $36,000 on July 28, 2025. The licensee failed to respond to the Notice or pay the civil penalty. Despite multiple attempts by the NRC to contact the licensee, no response was received; therefore, the NRC is imposing the civil penalty through this Order. The NRC staff has determined that the violations occurred as described in the Notice and that the $36,000 civil penalty proposed for the violations is appropriate and will be imposed. This Order is effective upon issuance.
**DATES:**
This order was issued on March 4, 2026.
**ADDRESSES:**
Please refer to Docket ID NRC-2026-1256 when contacting the NRC about the availability of information regarding this document. You may obtain publicly available information related to this document using any of the following methods:
• *Federal Rulemaking Website:* Go to *https://www.regulations.gov* and search for Docket ID NRC-2026-1256. Address questions about Docket IDs in *Regulations.gov* to Bridget Curran; telephone: 301-415-1003; email: *[email protected].* For technical questions, contact the individual(s) listed in the *For Further Information Contact* section of this document.
• *NRC's Agencywide Documents Access and Management System (ADAMS):* You may obtain publicly available documents online in the ADAMS Public Documents collection at *https://www.nrc.gov/reading-rm/adams.html.* To begin the search, select “Begin ADAMS Public Search.” For problems with ADAMS, please contact the NRC's Public Document Room (PDR) reference staff at 1-800-397-4209, at 301-415-4737, or by email to *[email protected].*
• *NRC's PDR:* The PDR, where you may examine and order copies of publicly available documents, is open by appointment. To make an appointment to visit the PDR, please send an email to *[email protected]* or call 1-800-397-4209 or 301-415-4737, between 8 a.m. and 4 p.m. eastern time (ET), Monday through Friday, except Federal holidays.
**FOR FURTHER INFORMATION CONTACT:**
Carmen Rivera, Office of Enforcement, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001; telephone: 301-415-0296; email: *[email protected].*
**SUPPLEMENTARY INFORMATION:**
The text of the order is attached.
For the Nuclear Regulatory Commission.
Dated: March 26, 2026.
Bo Pham,
Acting Director, Office of Enforcement.
**Attachment—Order Imposing Civil Monetary Penalty**
**United States of America**
**Nuclear Regulatory Commission**
*In the Matter of:* Metro Cardiovascular Diagnostics, 030-37587, Florissant, Missouri, 24-32636-01, EAF-RIII-2024-0017
**Order Imposing Civil Monetary Penalty**
**I**
Metro Cardiovascular Diagnostics (Licensee) is the holder of NRC Materials License No. 24-32636-01 issued on July 17, 2018, by the U.S. Nuclear Regulatory Commission (NRC or Commission) pursuant to Part 30 of Title 10 of the Code of Federal Regulations (10 CFR). The license authorizes the operation of Metro Cardiovascular Diagnostics (facility) in accordance with conditions specified therein. The facility is located on the Licensee's site in Florissant, Missouri.
**II**
An investigation of the Licensee's activities was initiated on October 5, 2023, and completed on September 11, 2024. The results of this investigation indicated that the Licensee had not conducted its activities in full compliance with NRC requirements. A written Notice of Violation and Proposed Imposition of Civil Penalties (Notice) was served upon the Licensee by letter dated July 28, 2025. The Notice states the nature of the violations, the provisions of the NRC's requirements that the Licensee violated, and the amount of the civil penalties proposed for the violations. As of the date of this Order, the Licensee has neither provided a written response to the Notice nor paid the proposed civil penalty. NRC staff have unsuccessfully attempted to contact the Licensee multiple times since the issuance of the Notice regarding payment of the proposed civil penalties.
**III**
Because the Licensee did not respond to the Notice, there are no additional facts, explanation, or other information to consider. The NRC has determined that the violations occurred as stated and that the penalties proposed for the violations designated in the Notice should be imposed.
**IV**
In view of the foregoing and pursuant to Section 234 of the Atomic Energy Act of 1954, as amended (Act), 42 U.S.C. 2282, and 10 CFR 2.205, *it is hereby ordered that:*
The Licensee shall pay the civil penalties in the amount of $36,000 within 30 days of the date of this Order by submitting the payment in accordance with NUREG/BR-0254.
In addition, at the time payment is made, the Licensee shall submit a statement indicating when and by what method payment was made, to the Director, Office of Enforcement, U.S. Nuclear Regulatory Commission, One White Flint North, 11555 Rockville Pike, Rockville, MD 20852-2738.
**V**
In accordance with 10 CFR 2.202, Metro Cardiovascular Diagnostics must, and any other person adversely affected by this Order may, submit an answer to this Order within 30 days of its publication in the *Federal Register* . In addition, Metro Cardiovascular Diagnostics and any other person adversely affected by this Order may request a hearing on this Order within 30 days of its publication in the *Federal Register* . Where good cause is shown, consideration will be given to extending the time to answer or request a hearing. A request for extension of time must be directed to the Director, Office of Enforcement, U.S. Nuclear Regulatory Commission, and include a statement of good cause for the extension.
All documents filed in NRC adjudicatory proceedings, including documents filed by an interested State, local governmental body, Federally recognized Indian Tribe, or designated agency thereof that requests to participate under 10 CFR 2.315(c), must be filed in accordance with 10 CFR 2.302. The E-Filing process requires participants to submit and serve all adjudicatory documents over the internet, or in some cases, to mail copies on electronic storage media, unless an exemption permitting an alternative filing method, as further discussed, is granted. Detailed guidance on electronic submissions is located in the “Guidance for Electronic Submissions to the NRC” (ADAMS Accession No. ML13031A056) and on the NRC's public website ( *https://www.nrc.gov/site-help/e-submittals.html* ). Participants may not submit paper copies of their filings unless they seek an exemption in accordance with the procedures described below.
To comply with the procedural requirements of E-Filing, at least 10 days prior to the filing deadline, the participant should contact the Office of the Secretary by email at *[email protected],* or by telephone at 301-415-1677, to (1) request a digital identification (ID) certificate, which allows the participant (or their counsel or representative) to digitally sign submissions and access the E-Filing system for any proceeding in which it is participating; and (2) advise the Secretary that the participant will be submitting a petition or other adjudicatory document (even in instances in which the participant, or their counsel or representative, already holds an NRC-issued digital ID certificate). Based upon this information, the Secretary will establish an electronic docket for the proceeding if the Secretary has not already established an electronic docket.
Information about applying for a digital ID certificate is available on the NRC's public website ( *https://www.nrc.gov/site-help/e-submittals/getting-started.html* ). After a digital ID certificate is obtained and a docket is created, the participant must submit adjudicatory documents in Portable Document Format (PDF). Guidance on submissions is available on the NRC's public website ( *https://www.nrc.gov/site-help/electronic-sub-ref-mat.html* ). A filing is considered complete at the time the document is submitted through the NRC's E-Filing system. To be timely, an electronic filing must be submitted to the E-Filing system no later than 11:59 p.m. ET on the due date. Upon receipt of a transmission, the E-Filing system timestamps the document and sends the submitter an email confirming receipt of the document. The E-Filing system also distributes an email that provides access to the document to the NRC's Office of the General Counsel and any others who have advised the Office of the Secretary that they wish to participate in the proceeding, so that the filer need not serve the document on those participants separately. Therefore, applicants and other participants (or their counsel or representative) must apply for and receive a digital ID certificate before adjudicatory documents are filed in order to obtain access to the documents via the E-Filing system.
A person filing electronically using the NRC's adjudicatory E-Filing system may seek assistance by contacting the NRC's Electronic Filing Help Desk through the “Contact Us” link located on the NRC's public website ( *https://www.nrc.gov/sitehelp/e-submittals.html* ), by email to *[email protected],* or by a toll-free call at 1-866-672-7640. The NRC Electronic Filing Help Desk is available between 9 a.m. and 6 p.m., ET, Monday through Friday, except Federal holidays.
Participants who believe that they have good cause for not submitting documents electronically must file an exemption request, in accordance with 10 CFR 2.302(g), with their initial paper filing stating why there is good cause for not filing electronically and requesting authorization to continue to submit documents in paper format. Such filings must be submitted by: (1) first class mail addressed to the Office of the Secretary of the Commission, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, Attention: Rulemaking and Adjudications Staff; or (2) courier, express mail, or expedited delivery service to the Office of the Secretary, 11555 Rockville Pike, Rockville, Maryland 20852, Attention: Rulemaking and Adjudications Staff. Participants filing adjudicatory documents in this manner are responsible for serving the document on all other participants. Filing is considered complete by first-class mail as of the time of deposit in the mail, or by courier, express mail, or expedited delivery service upon depositing the document with the provider of the service. A presiding officer, having granted an exemption request from using E-Filing, may require a participant or party to use EFiling if the presiding officer subsequently determines that the reason for granting the exemption from use of E-Filing no longer exists.
Documents submitted in adjudicatory proceedings will appear in the NRC's electronic hearing docket, which is publicly available on the NRC's public website ( *https://adams.nrc.gov/ehd* ), unless otherwise excluded pursuant to an order of the presiding officer. If you do not have an NRC-issued digital ID certificate as previously described, click “cancel” when the link requests certificates and you will be automatically directed to the NRC's electronic hearing docket where you will be able to access any publicly available documents in a J. Siddiqui—8—particular hearing docket. Participants are requested not to include personal privacy information such as social security numbers, home addresses, or personal phone numbers in their filings unless an NRC regulation or other law requires submission of such information. With respect to copyrighted works, except for limited excerpts that serve the purpose of the adjudicatory filings and would constitute a Fair Use application, participants should not include copyrighted materials in their submission.
If a person other than Metro Cardiovascular Diagnostics requests a hearing, that person shall set forth with particularity the manner in which his interest is adversely affected by this Order and shall address the criteria set forth in 10 CFR 2.309(d) and (f).
If a hearing is requested by a licensee or a person whose interest is adversely affected, the Commission will issue an Order designating the time and place of any hearings. If a hearing is held, the issue to be considered at such hearing shall be whether this Order should be sustained. Pursuant to 10 CFR 2.202(c)(2)(i), Metro Cardiovascular Diagnostics or any other person adversely affected by this Order, may, in addition to demanding a hearing, at the time the answer is filed or sooner, move the presiding officer to set aside the immediate effectiveness of the Order on the ground that the Order, including the need for immediate effectiveness, is not based on adequate evidence but on mere suspicion, unfounded allegations, or error. In the absence of any request for hearing, or written approval of an extension of time in which to request a hearing, the provisions specified in Section IV above shall be final 30 days from the date this Order is published in the *Federal Register* without further order or proceedings. If an extension of time for requesting a hearing has been approved, the provisions specified in Section IV shall be final when the extension expires if a hearing request has not been received. *An Answer or a Request for Hearing Shall Not Stay the Immediate Effectiveness of This Order* . If payment has not been made by the time specified above, the matter may be referred to the Attorney General, for collection.
For the Nuclear Regulatory Commission.
Dated this 4th day of March 2026.
Bo Pham,
*Acting Director, Office of Enforcement.*