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Section §171.16: Detailed hazardous materials incident reports

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 171.16 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
22-0112 Oak Harbor Freight Lines, Inc. Jeff McLaughlin View
22-0024 Keller and Heckman, LLP Trent Doyle View
21-0102 George W. Wright & Associates, LLC Doris Soran View
18-0110 Ascent Resources Utica, LLC Steven Parrish View
18-0043 Ventura County District Attorney's Office Mitchel Disney View
04-0153 National Cargo Bureau, Inc Mr. Philip I. Anderson View
10-0232 URS Corporation Ms. Erin Jarman View
99-0008 Spill and Waste Departmen Mr. Bob Held, CHMM View
14-0056 Responsible Care Coordinator Mr. Nathan Walden View
07-0131 National Tank Truck Carriers, Inc. Mr. Thomas P. Lynch View
05-0148 PGM Global Logistices Ms. Debbie Hape View
06-0146 State of New Jersey Department of Environmental Protection Ms. Robert Gomez View
00-0016 Materials Association, Inc. Mr. John V. Currie View
09-0196 Schneider National Bulk Carriers, Inc. Mr. Terry Tavares View
12-0237 Total Petrochemicals & Refining USA, Inc. Ms. Karen Scheel View
16-0080 Technology Solutions Mr. William Weddle View
14-0220 Premium Environmental Services Mr. Tom Stone View
16-0153 Emergency Response and Training Solutions Mr. Ed Ballash View
CHI-95-002 Dr. Burton Z. Davidson View
08-0176 Garvin, Light, Hanson & Feary Attorneys At Law Mr. Timothy W. Wiseman View
00-0115 Warner Norcross & Judd LLP Mr. Scott D. Hubbard View
05-0011 H.B. Fuller Company Mr. Gene Secor View
04-0275 Ms. Amy Dean View
04-0286 Kenan Advantage Group, Inc Mr. Bruce Redmon View
06-0156 FedEx Express Mr. Thomas J. Leech, III View
07-0096 Emergency Response and Training Solutions Mr. George Sabo View
04-0090 Air Products and Chemicals, Inc. Mr. Richard J. Lloyd View
04-0239 Menlo Worldwide Forwarding Mr. Robert G. Johnson View
04-0287 Menlo Worldwide Forwarding Mr. Robert Johnson View
04-0026 Florida East Coast Railway, L.L.C. Mr. W. L. Buzick View
05-0068 Menlo Worldwide Forwarding, a UPS Company Ms. Maureen McCallister View
14-0188 Alaska Air, SEADG Mr. Ron Fink View
04-0049 Ms. Sheila Wolf Ms. Sheila Wolf View