Escalated Enforcement Actions Issued to Materials Licensees - N

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This table includes a collection of significant enforcement actions (referred to as "escalated") that the NRC has issued to materials licensees.

The types of actions and their abbreviations are as follows:

  • Notice of Violation for Severity Level I, II, or III violations (NOV)
  • Notice of Violation and Proposed Imposition of Civil Penalty (NOVCP)
  • Order Imposing Civil Penalty (CPORDER)
  • Order Modifying, Suspending, or Revoking License (ORDER)

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Licensee Name and
NRC Action Number
Action Type
(Severity) &
Civil Penalty
(if any)
Date Description
7NT Enterprises, LLC, IN
EA-16-098
NOV
(SL III)
07/01/2016 On July 1, 2016, the NRC issued a Notice of Violation to 7NT Enterprises, LLC, for a Severity Level III violation. The violation involved the failure to use a minimum of two independent physical controls that form tangible barriers to secure portable gauges from unauthorized removal when the portable gauges were not under the control and constant surveillance of the licensee as required by 10 CFR 30.34(i). Specifically, on multiple occasions, and most recently on March 22, 2016, the licensee stored portable gauges with only a single physical barrier and were not under the control and constant surveillance of the licensee.

NACHER Corporation
EA-18-050

NOV
(SL III)
08/02/2018 On August 2, 2018, the NRC issued a Notice of Violation for two Severity Level III violations of (1) 10 CFR 34.31(a); and (2) 10 CFR 150.20(b)(5). Specifically, on March 31, 2018, the licensee failed to adequately perform visual and operability checks on a radiographic exposure device and associated equipment before use on that day to ensure that the equipment was in good working condition. A guide tube disconnect occurred because the licensee's operability check did not ensure that the grease, dirt, and grime was cleared from the guide tube's connection to the exposure device, resulting in the inability to return the source to the shielded position. Further, the licensee failed to follow its emergency procedures to contact the RSO when a source cannot retract into a fully shielded position, which resulted in personnel conducting source recovery operations without having been properly trained and without RSO approval.
Nanticoke Memorial Hospital, DE
EA 09-335
NOV
(SL III)
02/02/2010 On February 2, 2010, the NRC issued a Notice of Violation to Nanticoke Memorial Hospital for a Severity Level III violation involving the failure to notify the NRC Operations Center by telephone no later than the next calendar day after discovery of the medical event as required by 10 CFR 35.3045(c). Specifically, Nanticoke Memorial Hospital became aware that a medical event had occurred on June 26, 2009, but the NRC was not notified until July 15, 2009.
National Aeronautics and Space Administration, MD
EA 05-125
ORDER 02/10/2006 On February 10, 2006, an immediately effective Confirmatory Order was issued to confirm commitments made as part of a settlement agreement involving the failure by the National Aeronautics and Space Administration to report missing licensed material and to provide complete and accurate information to the NRC as required. The settlement agreement was reached as a result of an Alternative Dispute Resolution session, held at the request of the applicant.
National Insitutute of Health, MD
EA-01-001
NOV
(SL III)
01/17/2001 On January 17, 2001, a Notice of Violation was issued for a Severity Level III violation involving the licensee's failure to make surveys that were necessary to assure compliance with the regulations that limit radiation exposure to the skin of a minor to 5 rem.

National Institute of Standards and Technology, MD
EA-22-009

NOV
(SL III)
10/05/2022 On October 5, 2022, the NRC issued a notice of violation to the National Institute of Standards and Technology (licensee) for a Severity Level (SL) III violation involving failure to comply with its license which states, in part, that Source Custodians shall maintain control over source utilization and ensure work is done in compliance with appropriate protocols, instructions, and safe handling practices. Specifically, a Source Custodian under contract with the licensee did not follow the appropriate instructions and emergency procedures when a release of radioactivity occurred during the preparation of short-lived radioactive standards. Instead, the Source Custodian attempted to decontaminate himself, equipment, and lab facilities to avoid disruption of his work.
National Institute of Standards and Technology, MD
EA-09-142
ORDER 03/01/2010 On March 1, 2010, the NRC issued an Immediately Effective Confirmatory Order to the U.S. Department of Commerce's National Institute of Standards and Technology (NIST or licensee) to confirm commitments made as a result of an Alternate Dispute Resolution mediation session held on January 5, 2010. This enforcement action is based on ten apparent violations of NRC requirements at NIST's facility in Boulder, Colorado, which were identified during NRC inspection and investigation activities conducted in response to a June 9, 2008 plutonium spill. The apparent violations involved the licensee's failure to conduct the radiation safety program at NIST-Boulder in accordance with NRC requirements and the conditions of the NIST-Boulder license. The licensee agreed to take the following actions: (1) complete an independent assessment of the radiation safety program at NIST-Boulder; (2) submit copies of the required annual radiation safety audit to the NRC; (3) develop and implement a procedure for training new employees on radiation safety policies and procedures; (4) upgrade initial and refresher training for employees who work with radioactive materials, including a review of lessons learned from the plutonium spill and the associated apparent violations; (5) submit a license amendment request for deletion of the radionuclides on the NIST-Boulder license that NIST no longer plans to use; (6) develop a formal radiation hazards analysis process; (7) revise the NIST Ionizing Radiation Safety Committee charter to require additional review of NRC submittals; (8) revise the NIST radiation safety program policy to indicate that all individuals interacting with the NRC are required to provide complete and accurate information; (9) develop a clearly defined process for acquiring radioactive materials; and (10) pay a civil penalty of $10,000. In consideration of these commitments, and other actions already completed by NIST, the NRC agreed not to pursue any additional enforcement actions for the apparent violations or count this matter as previous enforcement for the purposes of assessing potential future enforcement actions in accordance with Section VI.C of the Enforcement Policy.
Nationwide Testing Services, IL
EA-96-129
NOV
(SL III)
05/16/1996 Use of licensed material in NRC jurisdiction not covered by NRC Form-241.
Navy, Department of The, VA
EA-07-091
EA-07-093
NOV
(SL III)
06/29/2007 On June 29, 2007, a Notice of Violation was issued for two Severity Level III violations in accordance with the Enforcement Policy. The first violation involved a radiography device containing a quantity of Iridium-92 that was mistakenly shipped and stored for a period of 12 days before it was discovered and recovered during a routine survey. Although the source was properly shielded, and it was unlikely that a member of the general public could gain access to it, significant radiation exposures could have occurred if the source had been improperly handled, transferred or removed from the facility, or if the source was removed from its shielding. The second violation involved a radiographer who exposed a Cobalt-60 source before ensuring that the high radiation area was cleared. This failure resulted in radiation doses to the crew that exceeded expected exposures. The failure to clear the high radiation area before conducting operations created a potential for the exposures to have been in excess of regulatory limits.
Navy, Department of The, DC
EA-04-075
NOV
(SL III)
04/23/2004 On April 23, 2004, a Notice of Violation was issued for a Severity Level III violation involving the failure to secure from unauthorized removal or limit access to licensed material (approximately 27 millicuries total activity included in iridium-192 seeds) in a controlled area and the failure to control and maintain constant surveillance of this licensed material.
Navy, Department of The, DC
EA-97-143
NOV
(SL III)
05/07/1997 Mispackaging numerous shipments of radioactive material.
NDC Systems, CA
EA-96-342;
EA-96-539
NOV
(SL III &
ORDER)
01/31/1997 Mispackaging numerous shipments of radioactive material.
NDT Services, Inc, PR
EA-00-031
NOV
(SL I)
10/17/2000 A Notice of Violation for a Severity Level I violation was issued on October 17, 2000, based on multiple failures of two former Radiation Safety Officers (RSOs) to ensure that radiation safety activities were performed in accordance with approved procedures and regulatory requirements.
NDT Services, Inc, PR
EA-99-014
ORDER 01/15/1999 Failure to maintain adequate security of licensed material.
NDT Services, Inc, PR
EA-98-108
ORDER 03/27/1998 Immediately effective order suspending license based on multiple violations involving radiographic operations.
NDT Services, Inc. PR
EA-94-029
NOVCP
(SL I)

$15,000
07/16/1996 Failure to retract source to the safety position during radiographic operations.
NTH Consultants, LTD., PA
EA-98-060
NOV
(SL III)
03/16/1998 Gauge destroyed when operator walked away.
NTH Consultants, LTD., MI
EA-08-002
NOV
(SL III)
03/31/2008 On March 31, 2008, a Notice of Violation was issued for a Severity Level III violation involving the failure to use a minimum of two independent physical controls that form tangible barriers to secure portable gauges from unauthorized removal, when portable gauge was not under the control and constant surveillance of the licensee. Specifically, licensee personnel secured the transport case containing a gauge to a vehicle with two independent cables and padlocks, but the gauge case lid was secured with only a padlock and the gauge was stolen from the vehicle.
Nelson Excavating, WV
EA-96-308
NOVCP
(SL I)

$ 5,000
01/27/1997 Deliberate violation of Order Suspending License; deliberate inaccurate/ incomplete information provided to the NRC.
neo-pet, LLC
Cleveland, OH
(EA-12-068)
NOV
(SL III)
06/13/2012 On June 13, 2012, the NRC issued a Notice of Violation to neo-pet, LLC, a licensee of the State of Ohio, for a Severity Level III violation involving 10 CFR 150.20. Specifically, on multiple occasions between April 6, 2010, and March 6, 2012, neo-pet, LLC, possessed and used doses of fluorine-18 in Indiana, a Non-Agreement State, without filing an NRC Form 241 at least three days prior to engaging in licensed activities in areas of exclusive Federal jurisdiction.
New Britain General Hospitals, CT
EA-96-396
NOV
(SL III)
12/20/1996 Falsification of a dose calibrator constancy record.
New England Medical Center Hospitals, MA
EA-96-398
NOV
(SL III)
11/13/1996 Transportation violations - exceeded exposure limits.
New Jersey Department of Transportation, NJ
EA-06-287
NOV
(SL III)
12/14/2006 On December 14, 2006, a Notice of Violation was issued for a Severity Level III violation involving the failure to use two independent physical controls that formed tangible barriers to secure a portable gauge, containing NRC licensed material, from unauthorized removal when the portable gauge was not under the control and constant surveillance of the licensee. Specifically, the licensee stored the gauge in a locked transportation case inside a locked wooden box located inside an unoccupied, unlocked building. The wooden box was not under the licensee's control, was not secured, and could be accessed by unauthorized individuals.
NIBLOCK Excavating, Inc., IN
EA-96-298
NOV
(SL III)
09/25/1996 Unauthorized user of a moisture density gauge.
Niles Steel Tank Company, MI
EA-09-260
NOV
(SL III)
12/09/2009 On December 9, 2009, the NRC issued a Notice of Violation to Niles Steel Tank Company for a Severity Level III violation involving the failure to secure from unauthorized removal or access licensed material stored in controlled or restricted areas as required by 10 CFR 20.1801. Specifically, between August 24, 2009, and September 9, 2009, the licensee stored a radiography camera in a permanent radiographic installation and a member of the public had access to the area.
Niowave, Inc., MI
EA-22-021
NOV
(SL III)
06/30/2022 On June 30, 2022, the NRC issued a notice of violation to Niowave, Inc. (licensee) for a Severity Level III problem associated with three related violations. The violations involved the following licensee failures: (1) control the occupational dose to the skin of any extremity of individual adults to an annual dose limit of 50 rem shallow-dose equivalent, as required by Code of Federal Regulations (10 CFR) 20.1201(a)(2)(ii); (2) perform adequate surveys to ensure compliance with the occupational dose limits of 10 CFR 20.1201(a)(2)(ii), as required by 10 CFR 20.1501(a); and (3) use, to the extent practical, procedures and engineering controls based on sound radiation protection principles to achieve occupational doses that are as low as reasonably achievable, as required by 10 CFR 20.1101(b).
NJS Engineering, SD
EA-96-450
NOV
(SL III)
01/08/1997 Failure to control licensed material.
Nondestructive & Visual Inspection, Inc., LA
EA-03-031
NOVCP
(SL III)
$6,000
06/16/2003 On June 16, 2003, a Notice of Violation and Proposed Imposition of Civil Penalty in the amount of $6,000 was issued for a Severity Level III violation involving the failure to secure from unauthorized removal or limit access to licensed material (about 52 curies of Iridium-192 in an industrial radiographic exposure device) located on a platform in federal waters in the Gulf of Mexico, which is an unrestricted area, and the failure to control and maintain constant surveillance of this licensed material.
Nondestructive & Visual Inspection, Inc., LA
EA-01-216
NOV
(SL III)
09/28/2001 On September 28, 2001, a Notice of Violation was issued for a Severity Level III violation involving the failure of Nondestructive & Visual Inspection, Inc., a licensee of the State of Louisiana, to file NRC Form 241, " Report of Proposed Activities in Non-Agreement State," prior to conducting radiographic operations using curie quantities of iridium-192 on off-shore platforms in waters off of the Gulf of Mexico in areas of Federal jurisdiction.
Norcon, Inc., AK
EA-97-538
NOV
(SL III)
01/23/1998 Breakdown in control of licensed activities.
Nordlund and Associates, MI
EA-13-053
NOV
(SL III)
06/27/2013 On June 27, 2013, the NRC issued a Notice of Violation to Nordlund and Associates for a Severity Level III problem. One of the violations included in the Severity Level III problem involved the failure to confine possession and use of byproduct materials to the locations and purposes authorized by the license as required by 10 CFR 30.34(c). As for accelerator-produced radioactive material or discrete sources of radium-226 that require a license amendment, licensees may continue to use these materials for authorized purposes until the specified date provided the person submits an amendment application within 6 months from the NRC's waiver expiration date. However, from August 7, 2009, to April 3, 2013, the licensee possessed four radium-226 gauges and used one of these gauges for density measurements at a temporary job site on July 3 and 5, 2012. The licensee was not authorized to possess the gauges and did not submit a license amendment until February 19, 2013, which is more than 6 months from the waiver expiration date. Another violation involved the conduct of operations so that the dose in any unrestricted area from external sources does not exceed 2 millirem in any one hour as required by 10 CFR 20.1301(a)(2). Specifically, as of January 16, 2013, the licensee stored its radium gauges in an outdoor shed in an unrestricted area in a manner that resulted in a dose of approximately 4.5 millirem per hour external to the shed.
Nordion International, Inc., Canada
EA-97-541
NOV
(SL III)
01/23/1998 Licensee failed to notify NRC of modification to sealed sources and devices.
North American Testing, Inc., CO
EA-23-136
NOV
(SL III)
02/08/2024 On February 8, 2024, the NRC issued a notice of violation to North American Testing, Inc. (NAT) for a Severity Level III violation. The violation involved NAT’s failure to file NRC Form 241, "Report of Proposed Activities in Areas of Exclusive Federal Jurisdiction," at least three days prior to engaging in licensed activities as required by Title 10 of the Code of Federal Regulations (CFR) 150.20(b)(1), and for its failure to request approval for changes in work locations as required by 10 CFR 150.20(b)(2).
Northern Engraving Corporation,
WI
EA-02-098
NOVCP
(SL III)

$3,000
07/22/2002 On July 22, 2002, a Notice of Violation and Proposed Imposition of Civil Penalty in the amount of $3,000 was issued for a Severity Level III problem involving: (1) failure to transfer generally licensed devices only to authorized recipients; and (2) failure to provide complete and accurate information to the NRC.
Northwest Inspection, Inc.
Kennewick, WA
EA-21-145
NOV
(SL III)
03/14/2022 On March 14, 2022, the NRC issued a Notice of Violation to Northwest Inspection, Inc. (licensee) for a Severity Level (SL) III violation.  Based on the information developed during the inspection and the information provided by the licensee in response to the inspection report dated January 7, 2022, the NRC determined that one violation of NRC requirements occurred.  The violation cited was based on the licensee’s failure to ensure that a radiographer’s assistant wore a personnel dosimeter while performing radiographic operations contrary to Title 10 of the Code of Federal Regulations (10 CFR) 34.47 (a).  The NRC considers this violation to be significant because of the potential for radiological exposure in excess of regulatory limits.  Accordingly, this violation is categorized as a Severity Level III violation in accordance with Section 6.3.c.4.b of the NRC Enforcement Policy.
Northern Michigan Hospital, MI
EA-03-122
NOV
(SL III)
08/11/2003 On August 11, 2003, a Notice of Violation was issued for a Severity Level III violation involving the failure to secure from unauthorized removal or access licensed material (1210 millicuries of molybdenum-99 in a Tc-99m/Mo-99 generator, 351 millicuries of technetium-99m in unit dose form, 400 microcuries of iodine-131, 22 millicuries of xenon-133 and several check sources of microcurie activity) that were stored in a controlled area, and the failure to maintain constant surveillance of this licensed material.
North Country Hospital and Health Center, Inc., VT
EA-99-153
NOV
(SL III)
07/20/1999 Multiple violations involving a misadministration, including the failure to notify the NRC.
Northwest Inspection, Inc., WA
EA-09-019
NOV
(SL III)
05/20/2009 On May 20, 2009, the NRC issued a Notice of Violation for a SLIII violation to Northwest Inspection, Inc., for a violation of 10 CFR 150.20. Specifically, during six time periods in 2008, the Agreement State licensee engaged in activities in NRC jurisdiction and did not file (1) a submittal containing NRC Form 241, "Report of Proposed Activities in Non-Agreement States," (2) a copy of its Agreement State specific license, and (3) the appropriate fee with the Regional Administrator for the Region in which the Agreement State that issued the license is located.
Novelis Corporation
WV
EA-15-213
NOVCP
(SL III)

$7,000
05/13/2016 On May 13, 2016, the NRC issued a Notice of Violation and Proposed Imposition of a Civil Penalty in the amount of $7,000 to Novelis Corporation for a Severity Level III violation. The violation involved the deliberate repairs of a nuclear gauge that were not permitted under the terms of Novelis’ NRC License. Specifically, on September 12, 2014, the licensee replaced a pneumatic cylinder that controls the position of the shutter, and on September 13, 2014, the licensee adjusted the shutter control mechanism of a nuclear gauze. These repairs were specifically prohibited by conditions of its license.
Nuclear Fuel Services, Inc., TN
EA-91-186
NOV
(SL III)
01/29/1992 On January 29, 1992, a Notice of Violation (NOV) was issued to Nuclear Fuel Services, Inc. (NFS). This action is based on a Severity Level III violation which involved the inadvertent transfer of an unauthorized amount of licensed material from a safe geometry vessel to an unsafe geometry vessel without the required verification.
Nuclear Imaging, LTD., SD
EA-97-263
NOV
(SL III)
07/31/1997 Failure to secure licensed material.
Nuclear Pharmacy of Idaho, Inc., ID
EA-98-363
NOV
(SL III)
10/19/1998 Violation include failure to: (1) perform an evaluation to determine the dose to the skin of the right forearm of the individual involved in the contamination event.

Page Last Reviewed/Updated Thursday, February 29, 2024