https://www.phmsa.dot.gov/lithiumbatteries
Transporting Lithium Batteries | PHMSA
lithium batteriestransportingphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/03-0325
Interpretation # 03-0325 ([Horizon Lines, LLC] [Mr. Cliff Bartley]) | PHMSA
horizon linesinterpretationllcmrcliff
https://www.phmsa.dot.gov/regulations/title49/section/1932713
193.2713 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/03-0290
Interpretation # 03-0290 ([360 Training] [Mr. Saif Fatteh]) | PHMSA
interpretationtrainingmrsaiffatteh
https://www.phmsa.dot.gov/regulations/title49/interp/98-0602
Interpretation # 98-0602 ([G.H. Johnson & Associates, Inc.] [Mr. James A. Noone]) | PHMSA
https://www.phmsa.dot.gov/regulations/federal-register-documents/2023-07102
Lithium Battery Air Safety Advisory Committee; Notice of Public Meeting | PHMSA
notice of public meetingsafety advisory committeelithium batteryair
https://www.phmsa.dot.gov/regulations/title49/interp/04-0087
Interpretation # 04-0087 ([ATOFINA Chemicals, Inc.] [Ms. Christina M. Kurtz]) | PHMSA
interpretationchemicals
https://www.phmsa.dot.gov/regulations/title49/section/1758
175.8 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/section/175630
175.630 | PHMSA
phmsa
https://www.phmsa.dot.gov/fraud-alert
Fraud Alert | PHMSA
PHMSA Special NoticePipeline and Hazardous Materials Safety Administration Special Notice: Fraud Alert
fraud alertphmsa
https://www.phmsa.dot.gov/standards-rulemaking/hazmat/interpretations/pending-hazardous-materials-hazmat-interpretations
Pending Hazardous Materials (Hazmat) Interpretations | PHMSA
Pending interpretation letters that are under review by the Office of Hazardous Materials Safety are shown in the table below. To view the interpretation...
hazardous materialspendinghazmatinterpretationsphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/13-0002
Interpretation # 13-0002 ([UPS] [Mr. Samuel S. Elkind]) | PHMSA
interpretationupsmrsamuelphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/12-0246
Interpretation # 12-0246 ([AWP, Inc.] [Mr. Eric A. Hulme]) | PHMSA
interpretationawpincmreric
https://www.phmsa.dot.gov/pipeline/liquified-natural-gas/lng-community-awareness
LNG Community Awareness | PHMSA
Federal pipeline safety regulations require that LNG facility operators communicate, coordinate, and cooperate with local public officials regarding...
community awarenesslngphmsa
https://www.phmsa.dot.gov/pipeline/excavator-final-rule/state-damage-prevention-enforcement-program-adequacy
State Damage Prevention Enforcement Program Adequacy | PHMSA
damage preventionstateenforcementprogramadequacy
https://www.phmsa.dot.gov/regulations/title49/interp/12-0011
Interpretation # 12-0011 ([Briggs and Stratton Corporation] [Mr. Don Pucci]) | PHMSA
briggs and strattoninterpretation
https://www.phmsa.dot.gov/regulations/title49/interp/17-0018
17-0018 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/federal-register-documents?topics=organization-functions-(government-agencies)
Notices and Rulemaking Documents | PHMSA
noticesrulemakingdocumentsphmsa
https://www.phmsa.dot.gov/regulatory-compliance/phmsa-guidance/safety-advisory-notice-cylinders-requalified-bj-medquip-repair
Safety Advisory Notice: Cylinders Requalified by BJ MedQuip Repair Service, Inc. | PHMSA
PHMSA is issuing this safety advisory to notify the public that BJ MedQuip Repair Services, Inc., located at 6495 S. Highway 48, Mannford, OK 74044, marked...
safety advisory
https://www.phmsa.dot.gov/about-phmsa/offices/phmsa-attorneys
PHMSA Attorneys | PHMSA
PHMSA's Office of Chief Counsel has attorneys in four divisions: General Law Hazardous Materials Safety Law Pipeline Safety Law
phmsaattorneys
https://www.phmsa.dot.gov/pipeline/annotated-regulations/49-cfr-192
49 CFR 192 | PHMSA
The documents and links in the menu on the right side bar are designed to give you the most up-to-date information on this set of regulations and supporting...
cfrphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/10-0270
Interpretation # 10-0270 ([] [Mr. James La Porte]) | PHMSA
mr jamesla porteinterpretationphmsa
https://www.phmsa.dot.gov/approvals-and-permits/hazmat
Hazardous Materials Approvals and Permits Overview | PHMSA
About Permits and Approvals PHMSA's Approvals and Permits Division is responsible for the issuance of DOT Special Permits and Approvals.
hazardous materialspermits overviewapprovalsphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/04-0007
Interpretation # 04-0007 ([Peldev] [Mr. D.E. Williams]) | PHMSA
mr dinterpretationwilliamsphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/99-0253
Interpretation # 99-0253 ([JL Shepherd & Associates] [Ms. Mary F. Shepherd]) | PHMSA
interpretationjlshepherdassociatesms
https://www.phmsa.dot.gov/regulations/title49/section/173181
173.181 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/federal-register-documents/2025-12089
Pipeline Safety: Standards Update PPI-TR 3 | PHMSA
pipeline safetystandards updateppitrphmsa
https://www.phmsa.dot.gov/regulations/title49/section/173134
173.134 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/section/1932441
193.2441 | PHMSA
phmsa
https://www.phmsa.dot.gov/incident-reporting
Incident Reporting | PHMSA
PipelineIf you witness or are involved in a pipeline emergency or you smell gas, move to a safe location and call 911.
incident reportingphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/02-0050
Interpretation # 02-0050 ([Mr. William K. Taggart, CET] [Lion Technology, Inc]) | PHMSA
https://www.phmsa.dot.gov/rulemakings/archived-rulemakings/archived-rulemaking-conversion-exemptions-20
Archived Rulemaking: Conversion of Exemptions | PHMSA
archivedrulemakingconversionexemptionsphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/25-0069
25-0069 | PHMSA
phmsa
https://www.phmsa.dot.gov/news/april-10-2025-south-bow-keystone-letter-commitment
April 10, 2025 - South Bow-Keystone Letter of Commitment | PHMSA
letter of commitmentaprilsouthbowkeystone
https://www.phmsa.dot.gov/registration/prior-years
Prior Year(s) | PHMSA
prior yearphmsa
https://www.phmsa.dot.gov/about-phmsa/offices/office-pipeline-safety-organization-chart
Office of Pipeline Safety Organization Chart | PHMSA
office ofpipeline safetyorganization chartphmsa
https://www.phmsa.dot.gov/safety-reports/failure-report-chevron-pipe-line-company-61110
Failure Report-Chevron Pipe Line Company 6/11/10 | PHMSA
pipe linefailurereportchevroncompany
https://www.phmsa.dot.gov/regulations/title49/interp/20-0094
20-0094 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/13-0120
Interpretation # 13-0120 ([Western International, Inc.] [Mr. David Ebbers P.E.]) | PHMSA
https://www.phmsa.dot.gov/regulations/title49/interp/07-0048
Interpretation # 07-0048 ([JCI Jones Chemicals, Inc.] [Mr. D.L. Casmey ]) | PHMSA
https://www.phmsa.dot.gov/regulations/title49/interp/06-0280
Interpretation # 06-0280 ([ExxonMobil Chemical Company] [Mr. Ronald J. Stokes]) | PHMSA
chemical companyinterpretationexxonmobil
https://www.phmsa.dot.gov/regulations/title49/interp/05-0307
Interpretation # 05-0307 ([Food Products Association] [Mr. Richard N. Jarman]) | PHMSA
food productsinterpretation
https://www.phmsa.dot.gov/regulations/title49/section/1932519
193.2519 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/21-0077
21-0077 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/16-0177
Interpretation # 16-0177 ([Robinson Nevada Mining Company] [Mr. Matt Thompson]) | PHMSA
mining companymatt thompsoninterpretationrobinsonnevada
https://www.phmsa.dot.gov/technical-resources/pipeline/pipeline-technical-resources-overview
Pipeline Technical Resources Overview | PHMSA
The Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety, provides technical information on selected pipeline safety topics.
technical resourcespipelineoverviewphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/13-0181
Interpretation # 13-0181 ([Northern Air Cargo, Inc.] [Mr. Mark Smith]) | PHMSA
northern air cargomark smithinterpretation
https://www.phmsa.dot.gov/rulemakings/archived-rulemakings/archived-pipeline-rulemakings-1977-1979
Archived Pipeline Rulemakings: 1977-1979 | PHMSA
FR Date Rule Name Docket
archivedpipelinerulemakingsphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/14-0005
Interpretation # 14-0005 ([Casa International Brokerage, Inc.] [Mr. Hector Casas]) | PHMSA
international brokerageinterpretationcasa
https://www.phmsa.dot.gov/regulations/title49/interp/13-0182
Interpretation # 13-0182 ([LabelMaster Services] [Mr. Robert Richard]) | PHMSA
robert richardinterpretationlabelmasterservicesmr
https://www.phmsa.dot.gov/regulations/title49/section/173416
173.416 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/24-0124
24-0124 | PHMSA
phmsa
https://www.phmsa.dot.gov/newsroom?field_editorial_type_target_id=651&page=25
Newsroom | PHMSA
newsroomphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/24-0054
24-0054 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/21-0031
21-0031 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/11-0062
Interpretation # 11-0062 ([DuPont Company] [Mr. Randolph Martin]) | PHMSA
interpretationdupontcompanymrrandolph
https://www.phmsa.dot.gov/regulations/title49/section/19857
198.57 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/23-0071
23-0071 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/15-0081
Interpretation # 15-0081 ([LabelMaster Services] [Mr. Robert Richard]) | PHMSA
robert richardinterpretationlabelmasterservicesmr
https://www.phmsa.dot.gov/news/report-congress-phmsa-fy-2023-hiring-actuals-and-fy-2024-hiring-plan
Report to Congress: PHMSA FY 2023 Hiring Actuals and FY 2024 Hiring Plan | PHMSA
report to congressphmsafy
https://www.phmsa.dot.gov/standards-rulemaking/hazmat/phmsas-online-cfr-ocfr
PHMSA's Online CFR (oCFR) | PHMSA
phmsaonlinecfr
https://energycommerce.house.gov/posts/chairmen-guthrie-and-latta-announce-legislative-hearing-on-the-reauthorization-of-phmsa
Chairmen Guthrie and Latta Announce Legislative Hearing on the Reauthorization of PHMSA Pipeline...
The Committee on Energy and Commerce is the oldest standing legislative committee in the U.S. House of Representatives and is vested with the broadest...
https://www.phmsa.dot.gov/regulations/title49/interp/pi-22-0011
PI-22-0011 | PHMSA
piphmsa
https://primis.phmsa.dot.gov/stakeholder-comms/pipa/landuseplanning/
Land Use Planning and Transmission Pipelines | Stakeholder Communications | PHMSA
Pipeline Safety Stakeholder Communications
land use planningtransmission pipelinesstakeholder communicationsphmsa
https://www.phmsa.dot.gov/regulations/title49/section/1932629
193.2629 | PHMSA
phmsa
https://primis.phmsa.dot.gov/stakeholder-comms/localofficials/
Local Officials | Stakeholder Communications | PHMSA
Pipeline Safety Stakeholder Communications
local officialsstakeholder communicationsphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/03-0177
Interpretation # 03-0177 ([A.I.D., Inc.] [Mr. Donald Brittingham]) | PHMSA
a iinterpretation
https://primis.phmsa.dot.gov/stakeholder-comms/glossary/
Pipeline Glossary | Stakeholder Communications | PHMSA
Pipeline Safety Stakeholder Communications
stakeholder communicationspipelineglossaryphmsa
https://www.phmsa.dot.gov/field-operations
Field Operations | PHMSA
PHMSA's safety inspectors, investigators, and other field personnel serves to ensure transportation safety and security by conducting compliance inspections...
field operationsphmsa
https://www.phmsa.dot.gov/rulemakings/archived-rulemakings/archived-rulemaking-specification-8bw-cylinder-acetylene-4
Archived Rulemaking: Specification 8BW Cylinder for Acetylene | PHMSA
rulemaking specificationarchivedcylinderacetylenephmsa
https://primis.phmsa.dot.gov/stakeholder-comms/safetystandards/
Pipeline Safety Regulations | Stakeholder Communications | PHMSA
Pipeline Safety Stakeholder Communications
pipeline safetystakeholder communicationsregulationsphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/18-0059
18-0059 | PHMSA
phmsa
https://www.phmsa.dot.gov/standards-rulemaking/hazmat/rulemakings/lithium-battery-air-safety-advisory-committee-september
Lithium Battery Air Safety Advisory Committee September 2020 Meeting Agenda | PHMSA
safety advisory committeelithium batterymeeting agendaair
https://primis.phmsa.dot.gov/stakeholder-comms/industry/
Industry | Stakeholder Communications | PHMSA
Pipeline Safety Stakeholder Communications
stakeholder communicationsindustryphmsa
https://www.phmsa.dot.gov/regulations/federal-register-documents?topics=ammonia
Notices and Rulemaking Documents | PHMSA
noticesrulemakingdocumentsphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/24-0069
24-0069 | PHMSA
phmsa
https://www.phmsa.dot.gov/foia
FOIA Overview | PHMSA
The Freedom of Information Act (FOIA), codified at 5 U.S.C. Section 552, is a Federal law that establishes the public's right to obtain information from...
foiaoverviewphmsa
https://www.phmsa.dot.gov/about-phmsa/offices/office-hazardous-materials-safety-organization-chart
Office of Hazardous Materials Safety Organization Chart | PHMSA
Hazardous Materials org chart
office ofhazardous materialsorganization chartsafetyphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/03-0173
Interpretation # 03-0173 ([Minnesota Department of Transportation] [Mr. Michael Ritchie]) | PHMSA
department of transportationmichael ritchieinterpretationminnesota
https://primis.phmsa.dot.gov/stakeholder-comms/links/
Pipeline Communication Links | Stakeholder Communications | PHMSA
Pipeline Safety Stakeholder Communications
communication linksstakeholder communicationspipelinephmsa
https://www.phmsa.dot.gov/about-phmsa/working-phmsa/commercial-services-management-program
Commercial Services Management Program | PHMSA
The goal of the Commercial Services Management Program is to provide the most cost effective and efficient government services.
commercial servicesmanagement programphmsa
https://www.phmsa.dot.gov/technical-resources/hazmat-technical-resources/metallurgical-evaluation-dot-e-6498-2216-aluminum-gas-cylinder-t119168
Metallurgical Evaluation of DOT-E-6498-2216 Aluminum Gas Cylinder - T119168 | PHMSA
May 3, 1999The main purpose of this technical evaluation was to determine the cause of an aluminum cylinder failure in Summerfield, NC.
aluminum gas cylinder
https://www.phmsa.dot.gov/regulations/title49/interp/26-0014
26-0014 | PHMSA
phmsa
https://www.phmsa.dot.gov/news/assistance-public-during-covid-19
Assistance to the Public During COVID-19 | PHMSA
The Pipeline and Hazardous Materials Safety Administration (PHMSA) remains fully operational and ready to assist the American public. PHMSA will continue to be...
to the publicduring covidassistancephmsa
https://www.phmsa.dot.gov/regulations/title49/section/1932801
193.2801 | PHMSA
phmsa
https://www.phmsa.dot.gov/news/phmsa-announces-new-safety-measures-protect-americans-carbon-dioxide-pipeline-failures
PHMSA Announces New Safety Measures to Protect Americans From Carbon Dioxide Pipeline Failures...
PHMSA 05-22Contact: PHMSAPublicAffairs@dot.gov
new safety measures
https://www.phmsa.dot.gov/regulations/title49/interp/05-0119
Interpretation # 05-0119 ([Department of the Army] [Mr. Alvin Char]) | PHMSA
department of the armyinterpretation
https://www.phmsa.dot.gov/regulations/title49/section/177840
177.840 | PHMSA
phmsa
https://www.phmsa.dot.gov/hazmat/general-approvals/un-third-party-certification-agencies
UN Third Party Certification Agencies | PHMSA
Under the Hazardous Materials Regulations, Subpart E - 49 CFR 107.401 an Approval may be granted to an organization or a person to conduct package testing as a...
third party certificationunagenciesphmsa
https://www.phmsa.dot.gov/regulations/title49/section/1932155
193.2155 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/interp/22-0116
22-0116 | PHMSA
phmsa
https://www.phmsa.dot.gov/standards-rulemaking/pipeline/state-arkansas-811-proclamation
State of Arkansas 811 Proclamation | PHMSA
state of arkansasproclamationphmsa
https://www.phmsa.dot.gov/regulations/title49/section/175704
175.704 | PHMSA
phmsa
https://www.phmsa.dot.gov/training/hazmat/phmsa-cautions-against-refilling-dot-39-cylinders
PHMSA Cautions Against Refilling DOT 39 Cylinders | PHMSA
PHMSA cautions the public to never refill DOT 39 cylinders, such as the 1lb. cylinders used for camping. While many types of propane cylinders are designed to...
phmsacautionsrefillingdotcylinders
https://www.phmsa.dot.gov/regulations/title49/interp/25-0096
25-0096 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/section/192740
192.740 | PHMSA
phmsa
https://www.phmsa.dot.gov/regulations/title49/section/1753
175.3 | PHMSA
phmsa
https://www.phmsa.dot.gov/training/hazmat/security-requirements-brochure-english
Security Requirements Brochure (English) | PHMSA
This brochure describes new security training and planning requirements and provides guidance in assessing security threats.
security requirementsbrochure englishphmsa
https://www.phmsa.dot.gov/regulations/title49/interp/pi-23-0002
PI-23-0002 | PHMSA
piphmsa
https://www.phmsa.dot.gov/standards-rulemaking/pipeline/state-wyoming-811-proclamation
State of Wyoming 811 Proclamation | PHMSA
state of wyomingproclamationphmsa