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Section §172.704: Training requirements

Below are the available interpretations and guidance for the given section. To return to the list of parts, use the Parts link above. If you do not see any guidance or interpretation information below, that means there is none available for the given part/section. Return to the search page to browse additional regulations sections.

PHMSA has published several Frequently Asked Questions (FAQ) documents on regulatory topics. Please review our FAQ documents below:

Additionally PHMSA has Hazardous Materials FAQs based on letters of interpretation on the following topics:

This section of the website provides the ability to find regulations information including regulations parts, content of sections, and interpretations for regulations sections. Below is a list of parts, identified by the part number and subject. To browse sections by part, click on the subject link below. You will be taken to the eCFR website to view sections for a part.

A written regulatory interpretation, response to a question, or an opinion concerning a pipeline safety issue may be obtained by submitting a written request to the Office of Pipeline Safety (PHP–30), PHMSA, U.S. Department of Transportation, 1200 New Jersey Avenue SE., Washington, DC 20590–0001 or at the email address: In addition to email address, the requestor must include his or her return address and should also include a daytime telephone number. Requests should be submitted at least 120 days before the time the requestor needs a response.

Note: electronic submission is provided as alternative to the 49 CFR Part 190.11(b) mail-in requirement.

The regulations text of the section can be found on the eCFR website. To view the regulations text, use the link below. For assistance, please send an email to

View section 172.704 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
23-0057 WMG Inc. Mr. John Grinley View
23-0025 Perkins Coie Edward (Ted) Boling View
22-0116 Total Technic Total Technic View
22-0025 University of Rhode Island Nic Englehart View
22-0109 Pacific Gas & Electric Timothy Hewitt View
22-0037 Linde Gas & Equipment Inc. Mike Stephens View
22-0066 Ameristar Air Cargo, Inc. Pat Hulsey View
21-0074 Commercial Vehicle Safety Alliance Collin B. Mooney View
21-0037 Law Offices of Steven W. Hansen Steven W. Hansen View
20-0055 Port of Portland Geoff Owen View
19-0136 National Propane Gas Association Sarah Reboli View
20-0023R Rescar Jay G. Standish View
18-0093 AllTranstek, LLC David Ronzani View
18-0089 ESHQ Services North America Robert Miller View
18-0021 TMC Engineering Services, Inc. Steven Geneva View
17-0100 Lockhead Martin Aeronautics Company Rebecca Stokes View
17-0085 Mr Evan Mills View
CHI-98-003 Westchester County Thomas G. Gardiner, Esq. View
16-0070 DHL Global Forwarding Ms. Dolly Welk View
00-0162 United Van Lines, Inc. Mr. Michael Pfeiffer View
00-0176 Ogletree, Deakins, Nash, Smoak & Stewart, P.C. Mr. David E. Jones View
07-0014 Arizona Public Service! PVNGS Mr. Terrance Dickerson View
08-0281 United Parcel Service Mr. Samuel S. Elkind View
08-0181 Van Duzer Consulting Services Mr. Robert Van Duzer View
99-0142 DGI Training Center Mr. Sean Kelly View
02-0050 Mr. William K. Taggart, CET Lion Technology, Inc View
15-0203 FIBA Technologies, Inc. Mr. Christopher Adams View
11-0013 Transportation Management Group, Inc. Mr. John M. Domutz View
03-0231 American Trucking Associations (ATA) Mr. Richard Moskowitz View
00-0080 Eastman Chemical Company Ms. Julie Brown View
03-0173 Minnesota Department of Transportation Mr. Michael Ritchie View
07-0015 EHS Associates, Inc. Mr. Byron Snapp View
09-0071 Oncology Supply Company Mr. Brad King Regulatory View
03-0224 ShipMate, Inc. Mr. Steven Charles Hunt View
08-0078 Covance Laboratories, Inc. Ms. Dee Kaiser View
03-0097 True Value Manufacturing Company Ms. Marcella G. Nichols, CHMM View
09-0086 Ready Care Industries Mr. Aaron Yarnell View
06-0264 Intertek Caleb Brett Mr. William J. Cherepon View
14-0102 Brighter Horizons Environmental Inc. Mr. John Nelson View
00-0118 Department of Energy Mr. Larry Blalock View
98-0428 HAZMAT and Dangerous Goods Program Charles Lovinski View
02-0213 Akzo Nobel Coatings Inc. Marty Purcell View
05-0245 Samirian Chemicals, Inc. Mrs. Debbie Andres View
14-0104 Trident Safety Group Mr. Richard J. Walsh View
00-0276 College of Tropical Agriculture and Human Resources Mr. Ken M. Ikeda View
98-0500 H.B. Fuller Automotive Company Mr. Gene Secor View
98-0338 Aristech Chemical Corporation Mr. Michael D. Alston View
01-0131 Mr. Paul I. Reamy View
03-0236 United Dispatch of Iowa Inc. Mr. Bob Adams View
00-0281 Oshkosh Truck Corporation Mr. James T. Van Sistine View
10-0122 Energy Solutions Ms. Merrie Schilperoort View
08-0178 ExxonMobil Chemical Company Mr. Ronald J. Stokes View
14-0173 Sika Corporation USA Mr. Arthur Van Houten View
05-0019 Florida Power and Light Company Mr. Frank Nesbihal, CHMM View
99-0148 Products, Inc. Mr. Gene Secor View
08-0180 Parcels Plus Mr. Bruce Bernstein View
14-0216 Savethesituation Ms. Eva Glimsche View
00-0255 Mr. Steven Smith View
13-0108 Eastex Crude Company Ms. Kathy Harris View
16-0139 Bureau Veritas Mr. Edgar Whittle View
10-0188 American Veterinary Medical Association Ms. Kristi Henderson View
03-0064 Henderson and Walton Women"s Center, P.C. Ms. Jane Smith View
15-0071 Professional Emergency Resource Services (PERS) Mr. Rick Heylmun View
10-0170 Energy Solutions, Inc. Ms. Merrie Schilperoort View
06-0219 Jones Chemicals, Inc. Mr. D. L. Casmey View
16-0177 Robinson Nevada Mining Company Mr. Matt Thompson View
10-0225 HazMat Resources, Inc. Mr. Daniel G. Shelton View
15-0213 Independent Cylinder Training Ms. Amy Bruecks View
12-0085 Brothers Group, Inc. Mr. Kenneth Kelton View
11-0293 Con-Way Freight Mr. Michael Gardner View
07-0126 REZ-1, Inc. (Boston) Mr. Mike Stern View
08-0021 Energy Solutions Mr. James H. Portsmouth View
08-0023 U.S. Department of Energy Ms. Ella McNeil View
09-0240 Dangerous Goods of America Mr. Fred A. Romero View
09-0149 Energy Solutions Mr. James H. Portsmouth View
14-0151 REI Mr. Terry Holland View
09-0051 Hazard Solutions LLC Mr. Arthur Mahoney View
03-0068 Landstar System, Inc. Mr. David Saporito View
14-0182 Reagent Chemical Mr. Robert Dritschel View
15-0129 Crop Production Services, Inc Mr. Clayton Droste View
05-0064 Fibre Box Association Mr. Richard V. Soderberg View
00-0093 Rohm and Haas Company Mr. Laurent S. Vesier View
11-0128 Oregon Department of Environmental Quality Mr. Brian Allen View
07-0048 JCI Jones Chemicals, Inc. Mr. D.L. Casmey  View
06-0255 Energy Solutions Federal Services Mr. James Portsmouth View
08-0141 URS Corporation Ms. Erin Jarman View
11-0271 Eastman Chemical Co. Ms. Julie Brown View
00-0100 Northrop Grumman Mr. David Norton View
11-0063 Con-Way Freight Mr. Michael Gardner View
09-0099 Oklahoma Historical Society Mr. Jim Lee View
03-0048 Environmental Rernediation Systems, Inc. Mr. Danny R. Hubbard II View
01-0317 Mr. Joseph Cleveland View
13-0041 Carry and Clean, LLC Mr. H. Michael Lord View
03-0316 Bechtel Nevada Mr. Jim Przybylski View