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Section §173.24: General requirements for packagings and packages

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 173.24 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
22-0078 Crestwood Transportation Mr. Jared Sharp View
22-0053 Alston & Bird Meaghan G. Boyd View
21-0091 Entegris James V. McManus View
21-0061 National Transportation Safety Board (NTSB) Rachael Gunaratnam View
21-0052 Amazon Marianna Patterson View
21-0029 TETRA Technologies Shawn Shoemake View
20-0075 Polsinelli Mr. Sean M. Pluta View
20-0065 Leslie’s Poolmart, Inc. Mike Jennings View
20-0025 Entergy Donnie James View
19-0113 Pristine World Academy Sean Kelly View
19-0106 Woodard & Curran, Inc. Kelly V. Camp View
19-0065 Freeman Manufacturing & Supply Company Ben Inman View
19-0058 Mark Hawk View
19-0060 Daniels Training Services, Inc. Daniel Stoehr View
18-0155 Canal Terminology Company Cindy Van Duyne View
18-0090 American Bureau of Shipping (ABS) Mr. Michael R. Kloesel View
18-0119 Cascade Asset Management, LLC John Sorrel Weakland View
18-0109 Jeffrey Cline View
18-0110 Ascent Resources Utica, LLC Steven Parrish View
18-0056 Outsource Logistics, LLC View
18-0043 Ventura County District Attorney's Office Mitchel Disney View
17-0064 Regulatory Resources, Inc. Mr. Wade Winters View
17-0038 RASIRC Mr. Ryan Woon View
11-0261 Mr. Aaron Hackman View
15-0063 Howard Sheppard, Inc. Mr. Michael Kitchens View
15-0045 Northern Air Cargo Mr. Mark Smith View
11-0299 Mr. Paul J. Dambek     View
15-0163 MPS Group Ms. Cynthia Walczak View
13-0198 Hazwaste Packaging Consultants Mr. Robert White View
15-0149 Tailgate In A Box Mr. Matthew MacLean View
05-0008 Mr. Ward Hildreth View
14-0225 Dangerous Goods Advisory Council Mr. Delmer Billings View
14-0061 Practical Engineering Solutions, LLC Mr. Clayton George View
14-0215 U.S. Environmental Protection Agency Ms. Nancy Fitz View
13-0209 DuPont Global Logistics Mr. Kevin Greene View
15-0211 Integrated Surface Technologies Dr. Jeffrey Chinn View
14-0048 HMT Associates, L.L.C. Mr. E.A. Altemos View
13-0175 Sigma-Aldrich Ms. Leigh Davidson View
15-0031R Mr. Joe Connelly View
14-0060 Safe-T- Pak, Inc. Mr. David Creighton View
16-0120 OneCIS Insurance Company Mr. Frank Hamtak View
11-0164 UPS Mr. Samuel Elkind View
04-0057 Saf-T-Pak, Inc. Mr. Art Rutledge View
15-0031 Specialty Transportation and Regulatory Services Mr. Joe Connelly View
15-0144 Labelmaster Services Mr. Robert Richard View
09-0067 Cabot Microelectronics Mr. Michael Trembley View
06-0284 Thompson Coburn LLP Mr. Anthony A. Anderson  View
03-0101 Transportation Safety Compliance Service Mr. Darwin D. Garvin View
08-0035 BD Medical - Medical Surgical Systems Mr. Lane Arbittier View
09-0097 Moeller Marine Products, Inc. Mr. Earnie Cook View
06-0080 DG Supplies, Inc. Mr. Michael Bowen  View
05-0099 State of Utah, DEQ Mr. Jule Fausto View
06-0124 Dangerous Goods Advisory Council Mr. Frits Wybenga View
06-0083 Transportation Systems Solutions Mr. Peter Olsen View
17-0015 Mr. Richard Lloyd View
11-0282 Ms. Kathy S. Gentry View
08-0249 Stericycle, Inc. Mr. Dan Fadgen View
14-0171 Institute of Makers of Explosives Ms. Cynthia Hilton View
12-0179 Dysol & MagChem Mr. Danny Gehlhausen View
13-0030 3737 Miller Park Drive Mr. Harold DePriest View
05-0120 Cayias Consulting Mr. John Cayias View
15-0152 DiSorb Systems, Inc Mr. Ted McLaughlin View
10-0144 MAR COR PURIFICATION Mr. Rollie Weberg View
04-0091 Univar USA, Inc., Chemcare Mr. Grant Ure View
17-0007 Schuster Metals, LLC Mr. John Lehman and Mr. Samuel Essak View
04-0204 ESS Group, Inc Ms. Kelly V. Camp View
10-0141 Triumvirate Environmental, Inc. Mr. John Menzigian View
15-0103 VEOLIA NORTH AMERICA Ms. Jennifer Eberle View
04-0231 Environmental Resource Center Ms. Pretlo V. Knight View
12-0216 Dyno Nobel Inc. Mr. J.D. Thomas View
06-0183 Devon Energy Corporation Mr. Joe Huber View
02-0302 Cytyc Corporation Jeffrey Joaquim View
13-0077 Bellevue Hospital Center Mr. Kieran Toale View
08-0165 Black Forest Marketing, LLC Mr. Tom Leftwich View
10-0032 Energy Solutions Mr. James H. Portsmouth View
11-0054 Environmental Management Ms. Misha Gonzales View
10-0094 Akzo Nobel Chemicals, Inc. Mr. Mark A. Connolly View
08-0294 The Law Offices of Michael A. Capuzzi Mr. Michael A. Capuzzi, Esq. View
12-0193 HAZ-MAT Transportation Services Mr. Jack Peters View
10-0065 TSO3, Inc. Mr. Jean-Martin Vallières View
15-0247 Infineum USA L.P. David Bower, Ph.D. View
14-0069 Environmental Management, Inc. Mr. Jamie Newton View
16-0044 Hall, Render, Killiam, Heath & Lyman, PC Ms. Amy Berenbaum Goodman View