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PHMSA is issuing this advisory bulletin to all owners and operators (operators) of hazardous liquid, carbon dioxide, and gas pipelines, as defined in 49 Code of Federal Regulations Parts 192 and 195, to clarify the regulatory requirements that may vary depending on the operational status of a...
PHMSA is issuing this advisory bulletin to owners and operators of natural gas distribution pipeline facilities to communicate the potential for damage to pipeline facilities caused by the passage of Hurricane Katrina on August 29, 2005.
RSPA is issuing this follow-up advisory bulletin to owners and operators of natural gas distribution systems to inform them of the susceptibility to premature brittle-like cracking of older plastic pipe and the voluntary efforts to collect and analyze data on plastic pipe performance. A Special...
This advisory bulletin provides guidance on the requirements for obtaining approval of alternative vapor-gas dispersion models under Subpart B of 49 CFR part 193.
We are issuing this advisory bulletin to owners and operators of Hazardous Liquid and Natural Gas Pipelines. The bulletin advises the industry about the potential for damage to pipeline facilities caused by the passage of Hurricane Georges.
Current regulations require operators to notify OPS and state pipeline safety agencies of certain events related to integrity management programs for gas transmission lines. This bulletin provides guidance on notifying OPS and state agencies and describes OPS’ review of notifications. OPS...
This document announces a public meeting and an opportunity to submit written comments on the safety regulation of gas and hazardous liquid gathering lines. Congress has directed RSPA to define “gathering line” for gas and hazardous liquid pipeline transportation and, if appropriate, define as “...
The information provided herein is to inform pipeline owners and operators of situations in which consortiums or third party administrators are utilizing operator authority to require unwarranted changes to contractor anti-drug and alcohol misuse prevention plans.
PHMSA is issuing this advisory bulletin to alert operators of hazardous liquid and gas transmission pipelines of the potential significant impact flow reversals, product changes and conversion to service may have on the integrity of a pipeline. Failures on natural gas transmission and hazardous...
This report documents the research for Project HM-01: Hazardous Materials Commodity Flow Data and Analysis. The research objective was to identify information and practices supporting an update to the U.S. DOT's 1995 Guidance for Conducting Hazardous Materials Flow Surveys. A hazardous materials...