09/24/2024 | Press release | Distributed by Public on 09/24/2024 06:58
Pipeline and Hazardous Materials Safety Administration (PHMSA), Department of Transportation (DOT).
Notice.
This notice provides amendments to the time, website information, dates, and other details of a notice published July 25, 2024, announcing a public workshop on risk modeling methodologies and tools for the evaluation of gas, carbon dioxide (CO 2 ), and hazardous liquid pipelines.
The public workshop will be held on October 23 and 24, 2024, from 9 a.m. to 6 p.m. EST (8 a.m.-5 p.m. CST). Public comments for consideration at the workshop must be submitted to Docket No. PHMSA-2024-0043 by October 11, 2024. Anyone who would like to attend the public workshop must register by October 11, 2024. Individuals requiring accommodations, such as sign language interpretation or other ancillary aids, should notify Janice Morgan by phone at 202-815-4507 or by email to [email protected] no later than October 1, 2024. For additional information, see the ADDRESSES section of this notice.
The 2024 Risk Modeling Public Workshop will be held in person in Houston, Texas at the Whitehall Houston Hotel, 1700 Smith Street, Houston, TX 77002. The instructions and final agenda will be posted to Docket No. PHMSA-2024-0043 once they are finalized. The link to the meeting registration is: https://primis-meetings.phmsa.dot.gov/meetings/4c97d810-9c86-4299-9c01-73c27f08fc07.
Presentations: Presentations will be available on the meeting website and on the E-gov website at www.regulations.gov, Docket No. PHMSA-2024-0043, no later than 30 days following the workshop.
Submitting comments: Members of the public may submit written comments either before or after the workshop. Comments should reference Docket No. PHMSA-2024-0043 and may be submitted by any of the following ways:
• E-Gov Web: www.regulations.gov. This site allows the public to enter comments on any Federal Register notice issued by any agency. Follow the online instructions for submitting comments.
• Mail: Docket Management System, U.S. Department of Transportation, 1200 New Jersey Avenue SE, West Building Ground Floor, Room W12-140, Washington, DC 20590-0001.
• Hand Delivery: DOT Docket Management System, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, between 9 a.m. and 5 p.m. EST, Monday through Friday, except Federal holidays.
• Fax: 202-493-2251.
Instructions: Identify the docket number at the beginning of your comments. If you submit your comments by mail, please submit two copies. To receive confirmation that PHMSA has received your comments, please include a self-addressed stamped postcard. Internet users may submit comments at www.regulations.gov.
Confidential Business Information: Confidential Business Information (CBI) is commercial or financial information that is both customarily and actually treated as private by its owner. Under the Freedom of Information Act (5 U.S.C. 552), CBI is exempt from public disclosure. If your comments in response to this notice contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this notice, it is important that you clearly designate the submitted comments as CBI. Pursuant to 49 Code of Federal Regulations (CFR) 190.343, you may ask PHMSA to provide confidential treatment to information you give to the agency by taking the following steps: (1) mark each page of the original document submission containing CBI as "Confidential;" (2) send PHMSA a copy of the original document with the CBI deleted along with the original, unaltered document; and (3) explain why the information you are submitting is CBI. Submissions containing CBI should be sent to Janice Morgan, DOT, PHMSA-PHP-4,1200 New Jersey Avenue SE, Washington, DC 20590-0001 or emailed to [email protected]. Any commentary PHMSA receives that is not specifically designated as CBI will be placed in the public docket.
Privacy Act: DOT may solicit comments from the public regarding certain general notices. Comments, including any personal information provided, are posted without changes or edits to https://www.regulations.gov. DOT posts these comments as described in the system of records notice (DOT/ALL-14 FDMS), which can be reviewed at www.dot.gov/privacy.
Docket: For access to the docket to read background documents or comments received, go to www.regulations.gov. Follow the online instructions for accessing the dockets. Alternatively, you may review the documents in person at the DOT Docket Management street address listed above.
Lee Cooper, Engineering Operations Supervisor, Engineering and Research Division, by phone at 202-913-3171 or by email at [email protected].
This notice provides amendments to details of a notice published July 25, 2024 (89 FR 60489).
Pipeline risk models are foundational to the assessment of operational pipeline risk. Federal pipeline safety integrity management (IM) regulations require pipeline operators to use risk assessments. PHMSA's integrity management regulations (49 CFR part 192, subparts O and P; 49 CFR 195.452) require the continual evaluation of threats to pipelines, methods to minimize the likelihood of a release, and the consequences of potential releases. Risk models are a primary tool pipeline operators use as part of this evaluation process and are generally referred to as a "risk analysis" or "risk assessment." A risk model is a set of algorithms or rules that use available information and data relationships to perform a risk assessment. The risk model is a simplified representation of a pipeline system and represents the relation of important risk factors.
To meet integrity management standards, a risk modeling approach must be able to adequately characterize all pipeline integrity threats and consequences concurrently, as well as be able to evaluate the impact of various measures on reducing risk.
In September 2015, PHMSA hosted a public workshop on risk modeling where various comments were presented and discussed with interested stakeholders. Information regarding the previous public workshop can be found at Docket No. PHMSA-2015-0139. Following the public workshop, PHMSA organized a risk modeling work group to gather information regarding state-of-the-art pipeline risk modeling methods and tools, the use of those methods and tools, and the resulting data in operator IM programs. In February 2020, PHMSA issued the resulting report, "Pipeline Risk Modeling, Overview of Methods and Tools for Improved Implementation," which presented several conclusions:
• While different risk model types have different capabilities for evaluating risk reduction actions, the quantitative system model or probabilistic models are more versatile and provide greater capabilities to provide risk insights and support decision making. Such models are not necessarily more complex nor need more data compared to other types of risk models.
• It is important for risk models to include modeling of incorrect operations, which includes human interactions and human performance, that are significant to the likelihood of failure or have a significant effect on consequences of a failure ( e.g., inappropriate controller restart of pumps, realistic emergency response time scenarios, design, and construction human errors, etc.).
In addition, section 119 of the Protecting Our Infrastructure of Pipelines and Enhancing Safety (PIPES) Act of 2020 directed PHMSA to commission a study to assess regulatory standards and criteria for deciding when automatic and remote-control shutoff valves should be installed on existing hazardous liquid and gas transmission pipelines in high consequence areas. The National Academies of Sciences, Engineering, and Medicine conducted the study of potential methodologies for the installation of automatic or remote-controlled shut-off valves and released its findings in February 2024. The study included several recommendations, one of which suggested PHMSA "further the pipeline industry's use of quantitative models for IM risk analysis as well as sound and consistent methods for establishing the benefits of safety measures." The study included recommendations to:
The 2024 Risk Modeling Public Workshop will provide an opportunity to discuss advances in risk modeling approaches and methodologies for pipeline and non-pipeline systems, as well as practical ways that pipeline operators have adopted and/or adapted methodologies to enhance the risk analyses of their systems.
PHMSA believes that risk models need to evolve in such a way as to be more versatile, thus leading to improved implementation to further reduce the risk of pipeline integrity threats to the public, property, and the environment. PHMSA is particularly interested in improvements to pipeline risk models, and what operators have adopted and/or adapted to risk models as part of the risk analyses of their systems.
To this end, PHMSA will hold the 2024 Risk Modeling Public Workshop to discuss and receive public feedback on recent advancements and improvements in risk analyses and risk models. PHMSA invites the public to comment on engineering and technical modeling considerations related to advancements in pipeline risk models, as well as risk modeling methodologies used in non-pipeline applications, and practical ways that operators can adopt and/or adapt such methods to the risk analyses of their systems.
In response to the initial Federal Register Notice, authors submitted abstracts to Docket No. PHMSA-2024-0043. If selected, PHMSA will notify authors of their selection by September 30, 2024. Each author of a selected abstract will then provide a short presentation to be used during the workshop. Presentations must be submitted via email to [email protected] no later than October 15, 2024.
Specific examples of risk applications are encouraged. PHMSA is interested in engineering and technical modeling considerations, including, but not limited to, the following:
PHMSA is not always able to publish a notice in the Federal Register quickly enough to provide timely notification of last-minute changes that impact scheduled workshops. Therefore, individuals should check the workshop website listed in the ADDRESSES section of this notice or contact Lee Cooper by phone at 202-913-3171, or by email at [email protected], regarding any possible changes. PHMSA invites public participation and comment on the topics addressed in this workshop. Please review the ADDRESSES section of this notice for information on how to submit written comments.
Issued in Washington, DC, under authority delegated in 49 CFR 1.97.