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Section §172.315: Limited quantities

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 172.315 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
22-0126 UL Solutions Mr. Kevin Skerrett View
22-0072 Coty Riverside Distribution Center Ms. Janice Hayes View
18-0007 Kennedys CMK Caroline Myers View
16-0075 Bureau of Dangerous Goods, LTD. Sandra Harding
12-0146 ADG Compliance Manager Mr. Bob Cogen View
13-0122R URS Corporation Mr. Andrew N. Romach View
14-0181 Duke Energy Corporation Mr. Chuck Denny View
03-0229 Lion Technology, Inc. Mr. Marc Kleinman View
15-0204 Crowley Liner Service Mr. Michael Lesser View
13-0163 Green Bay Packaging Inc. – Fremont Divisio Mr. Lance Lycourt View
08-0092 Woodard and Curran, Inc. Mr. Kelly V. Camp View
12-0173 HMT Associates, L.L.C. Mr. E. A. Altemos View
11-0204 Law Offices of James Kean Mr. James Campbell Kean View
14-0018 URS Corporation Mr. Andy N. Romach View
13-0169 SC Johnson & Son, Inc Ms. Georgia Barr View
12-0115 Forrest Paint Company Mr. Rich Nolan View
11-0098 The Sherwin-Williams Company Ms. Sandra Chapman Th View
06-0279 Wisconsin Propane Council Mr. Ronald Sutherland View
11-0099 Johes-Blair Company Mr. Matt Barfknecht View
04-0083 Mallinckrodt Baker Inc. Ms. Connie Barron View
12-0177 Homax Group, Inc. Mr. Eric Clifford View
06-0210 Dufour Petroleum LP Mr. Don Ladner View
14-0195 The Clorox Company Mr. Maurice C. Carson View
11-0275 American Coatings Association, Inc. Ms. Heidi K. McAuliffe, Esq. View
06-0022 U.S. Coast Guard CITAT Mr. Steven T. Webb View
16-0054 Infotrac, Inc. Mr. Jason Kob View
14-0231 PPG- Comex Mr. Israel Villarello View
05-0183 ShipMate, Inc. Mr. Steven Charles View