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Section §172.312: Liquid hazardous materials in non-bulk packagings

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 172.312 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
16-0075 Bureau of Dangerous Goods, LTD. Sandra Harding
11-0261 Mr. Aaron Hackman View
00-0027 Regulatory Center of Excellence Mr. William 0. Gramer View
07-0028 Line Pressures, Inc. Mr. Paul Graves View
00-0332 Goldfarb, Sturman & Averbach Mr. Steven L. Feldman View
03-0238 Exide TecImologies Mr. David M. Bloom View
10-0144 MAR COR PURIFICATION Mr. Rollie Weberg View
10-0149 Minnesota Department of Transportation Mr. Mike Ritchie View
10-0139 FedEx Freight Ms. Sandra Richesin View
04-0123 H.B. Fuller Company Mr. Eugene J. Secor View
06-0005 Byfield Marine Supply Mr. Keith L. Mauer View
04-0252 C.L. Smith Company Mr. Lonnie Jaycox  View
14-0241 Horizon Hobby, LLC Mr. Travis Morenz View