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Section §172.519: General specifications for placards

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 172.519 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
23-0078 Public Utilities Commission of Ohio Tom Forbes View
20-0014 Reagent Chemical & Research Inc. Robert Dritschel View
19-0105 United Initiators, Inc. Mr. Jeremy Pogorelec View
17-0119 Atlantic Ro-Ro Carriers, Inc. Mr. Andrei Lazourenko View
05-0012 Mr. Bob Thompson Mr. Bob Thompson View
00-0125 Reagent Chemical & Research, Inc. Mr. Robert Dritschel View
98-0601 Safety & Compliance Associates, Inc. Mr. Mike Lopez View
07-0019 Hy Yield Bromine Inc. Mr. Byver Daniell View
00-0164 Place Quick, Inc. Ms. Dianne Bechtold View
02-0089 Honeywell International, Inc. Barbara Konrad View
15-0224 Schneider National Bulk Carriers Ms. Shannon Schick View
02-0175 Gulf States Intermodal Ned Williams View
10-0204 Bureau of Explosives Transportation Technology Center, Inc. Mr. Sam Chapman View
10-0182 J.J. Keller & Associates, Inc. Mr. Thomas Ziebell View
00-0069 Place Quick, Inc. Ms. Dianne Bechtold View
98-0507 Interwest Home Medical Mr. James VanSchoonhoven View
16-0069 Brenntag North America, Inc. Mr. Bruce Biehl View
98-0421 Boe Gases Mr. John N. Thompson View
12-0158 J.J. Keller & Associates, Inc. Mr. Tom Zielbell View
16-0106 Global Logistics Ms. Julie Brown View
11-0079 Mr. Roger W. Cooper View
11-0077 Minnesota State Patrol, District 4700 Sgt. Jay K. Sletten View
14-0087 Midwest Meter, Inc. Mr. Marcus Kofoot View