The CSB issues safety recommendations to prevent the recurrence or reduce the likelihood or consequences of similar incidents or hazards in the future. Recommendations are issued to a variety of parties, including government entities, safety organizations, trade unions, trade associations, corporations, emergency response organizations, educational institutions, and public interest groups. Recommendations are published in CSB reports and are closed only by vote of the Board. The CSB tracks all recommendations and communicates regularly with recommendations recipients to ensure that the recommended corrective actions are implemented.

For more information, see Frequently Asked Questions about CSB recommendations.


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Recommendations

TS USA Molten Salt Eruption (7 Recommendations)
HEF Groupe (4 Recommendations)
Open: 100% | Closed: 0%

Final Report Released On: June 03, 2025

2024-01-I-TN-4

Include physical, protective barriers as part of the standard design for liquid nitriding processes. These protective barriers shall be intended to isolate employees from molten salt releases.


Status: Open - Awaiting Response or Evaluation/Approval of Response
Open - Awaiting Response or Evaluation/Approval of Response (O - ARE/AR) - The recipient has not submitted a substantive response, or the evaluation by CSB staff of a response is pending, or the Board has not yet acted on staff recommendation of status.
 

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2024-01-I-TN-5

Develop a safety management system that incorporates industry guidance and includes, but is not limited to:

a. A hazard analysis program for assessing the nitriding process. The program shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Risk-Based Process Safety, the National Fire Protection Association’s (NFPA) Standard for Ovens and Furnaces, and ASM International’s Handbook. The program shall apply to new and existing parts, assess parts for accumulation hazards and sealed cavities, and include non-routine tasks such as reprocessing unsatisfactory parts.

b. Written operating procedures for the nitriding process. The procedures shall be based on the information gathered from the hazard analysis program. The procedures shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Risk-Based Process Safety and the CCPS’s Guidelines for Writing Effective Operating and Maintenance Procedures.

c. A training program, including written materials, for the employees involved in the nitriding process. This program shall be based on the nitriding facility’s operating procedures and other relevant information from the hazard analysis program. The program shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Risk-Based Process Safety.

d. An incident investigation program. This program shall include requirements for performing causal analysis, producing written reports, and communicating findings and corrective actions throughout the entire HEF Groupe organization. The program shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Risk-Based Process Safety and the CCPS’s Guidelines for Investigating Process Safety Incidents.


Status: Open - Awaiting Response or Evaluation/Approval of Response
Open - Awaiting Response or Evaluation/Approval of Response (O - ARE/AR) - The recipient has not submitted a substantive response, or the evaluation by CSB staff of a response is pending, or the Board has not yet acted on staff recommendation of status.
 

PDF Document Recommendation Status Change Summary

2024-01-I-TN-6

Develop and implement an effective and comprehensive Knowledge Management program for sharing knowledge throughout the HEF Groupe organization. Knowledge shall include all information from audits, hazard analyses, and incident investigations, including causal analyses and corrective actions recommended and taken. This program shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Process Safety Knowledge Management.


Status: Open - Awaiting Response or Evaluation/Approval of Response
Open - Awaiting Response or Evaluation/Approval of Response (O - ARE/AR) - The recipient has not submitted a substantive response, or the evaluation by CSB staff of a response is pending, or the Board has not yet acted on staff recommendation of status.
 

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2024-01-I-TN-7

Develop and implement a comprehensive and effective Corporate Governance program. This program shall include regular audits of subordinate facilities throughout the organization, with tracking and accountability for implementation of all recommendations and corrective actions identified in the audits. Facility adherence to the safety management system recommended above shall be evaluated during the audits. The program shall require documentation of audit findings, prompt responses to deficiencies, development of corrective actions, and implementation of the corrective actions throughout the organization. This program shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Implementing Process Safety Management.


Status: Open - Awaiting Response or Evaluation/Approval of Response
Open - Awaiting Response or Evaluation/Approval of Response (O - ARE/AR) - The recipient has not submitted a substantive response, or the evaluation by CSB staff of a response is pending, or the Board has not yet acted on staff recommendation of status.
 

PDF Document Recommendation Status Change Summary

Techniques Surfaces USA (TS USA) (3 Recommendations)
Open: 100% | Closed: 0%

Final Report Released On: June 03, 2025

2024-01-I-TN-1

Implement physical, protective barriers around the molten salt baths that isolate employees from hazardous releases at all locations that perform liquid nitriding.


Status: Open - Awaiting Response or Evaluation/Approval of Response
Open - Awaiting Response or Evaluation/Approval of Response (O - ARE/AR) - The recipient has not submitted a substantive response, or the evaluation by CSB staff of a response is pending, or the Board has not yet acted on staff recommendation of status.
 

PDF Document Recommendation Status Change Summary

2024-01-I-TN-2

Develop a safety management system that incorporates industry guidance and includes, but is not limited to:

a. A hazard analysis program for assessing the nitriding process. The program shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Risk-Based Process Safety, the National Fire Protection Association’s (NFPA) Standard for Ovens and Furnaces, and ASM International’s Handbook. The program shall apply to new and existing parts, assess parts for accumulation hazards and sealed cavities, and include non-routine tasks such as reprocessing unsatisfactory parts.

b. Written operating procedures for the nitriding process. The procedures shall be based on the information gathered from the hazard analysis program. The procedures shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Risk-Based Process Safety and the CCPS’s Guidelines for Writing Effective Operating and Maintenance Procedures.

c. A training program, including written materials, for the employees involved in the nitriding process. This program shall be based on the nitriding facility’s operating procedures and other relevant information from the hazard analysis program. The program shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Risk-Based Process Safety.

d. An incident investigation program. This program shall include requirements for performing causal analysis, producing written reports, and communicating findings and corrective actions throughout the entire TS USA organization. The program shall incorporate industry guidance, such as the Center for Chemical Process Safety’s (CCPS) Guidelines for Risk-Based Process Safety and the CCPS’s Guidelines for Investigating Process Safety Incidents.


Status: Open - Awaiting Response or Evaluation/Approval of Response
Open - Awaiting Response or Evaluation/Approval of Response (O - ARE/AR) - The recipient has not submitted a substantive response, or the evaluation by CSB staff of a response is pending, or the Board has not yet acted on staff recommendation of status.
 

PDF Document Recommendation Status Change Summary

2024-01-I-TN-3

For each TS USA facility, establish a position with specific professional expertise and experience in safety management systems, such as risk-based process safety. This position shall be responsible for TS USA’s safety management system, ensuring that HEF Groupe’s safety information is incorporated at the site level, and implementing regulatory and industry safety guidance.


Status: Open - Awaiting Response or Evaluation/Approval of Response
Open - Awaiting Response or Evaluation/Approval of Response (O - ARE/AR) - The recipient has not submitted a substantive response, or the evaluation by CSB staff of a response is pending, or the Board has not yet acted on staff recommendation of status.
 

PDF Document Recommendation Status Change Summary