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Section §173.24a: Additional general requirements for non-bulk 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 173.24a on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
21-0091 Entegris James V. McManus View
21-0052 Amazon Marianna Patterson View
21-0045 Milport Enterprises, Inc. Tom Grego View
18-0043 Ventura County District Attorney's Office Mitchel Disney View
16-0080 Technology Solutions Mr. William Weddle View
15-0149 Tailgate In A Box Mr. Matthew MacLean View
15-0144 Labelmaster Services Mr. Robert Richard View
10-0246 W.E. Train Consulting Mr. W. Eugene Sanders View
12-0004 Regulatory Resources, Inc. Mr. Wade Winters View
14-0060 Safe-T- Pak, Inc. Mr. David Creighton View
13-0094 UPS Mr. Samuel Elkind View
15-0045 Northern Air Cargo Mr. Mark Smith View
13-0198 Hazwaste Packaging Consultants Mr. Robert White View
14-0225 Dangerous Goods Advisory Council Mr. Delmer Billings View
12-0133 Autoliv Ogden Technical Center Mr. Dave Madsen View
13-0175 Sigma-Aldrich Ms. Leigh Davidson View
15-0152 DiSorb Systems, Inc Mr. Ted McLaughlin View
06-0183 Devon Energy Corporation Mr. Joe Huber View
14-0171 Institute of Makers of Explosives Ms. Cynthia Hilton View
10-0141 Triumvirate Environmental, Inc. Mr. John Menzigian View
05-0040 Bonar Plastics Mr. Gustavo Cuevas View
12-0133R Autoliv Ogden Technical Center Mr. Dave Madsen View
06-0016 Transport Management Group Mr. Timothy Wagner View
06-0267 Healthcare Support Services Lisa Hardesty, MA, CHCC, HEM  View
16-0044 Hall, Render, Killiam, Heath & Lyman, PC Ms. Amy Berenbaum Goodman View
13-0077 Bellevue Hospital Center Mr. Kieran Toale View