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Section §107.601: Applicability

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 107.601 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
19-0066 Cryogenic Services, Ltd. Connor Orban View
19-0031 TDA, Inc Tom Dunaway View
00-0231 Mansour, Gavin, Gerlock & Manos Co., L.P.A. Mr. Samuel R. Martillotta View
00-0180 Gander Chemical Company, Inc. Mr. Robert Keel View
00-0221 Mr. Joseph Feldschuh, MD View
03-0289 Mr. Elbert W. Muncy, Jr. View
16-0064 OR-CAL Inc. Ms. Brooke Baker View
00-0200 GEM Technologies, Inc. Mr. Stephen B. Dzialo, Sr., PE View
01-0158 URS Corporation Mr. Andrew N. Romach View
02-0112 Hawks Logistics Steve E. Hawks View
07-0148 Castaway Trash Hauling Mr. Steven Duque View
09-0282 Orim S.p.A. Via D. Concordia, 65 Mr. Fabio Maggiore View
07-0062 Wisconsin Department of Natural Resources Ms. Gretchen S. Wheat View
07-0116 Tatro Tekosky Sadwick LLP Mr. Steve R. Tekosky View
16-0208 Enoch Kever PLLC Mr. Rod Johnson View
07-0121 Con Edison Development Dr. Raymond Martin     View
06-0214 Industrial Health & Safety Consultants Ms. Denese Deeds View
06-0225 City of Surprise, Water Services Department Ms. Christine Nunez View
09-0192 Hazmat, Inc. Mr. Paul J. Dambek View
09-0238 Mitsubishi International Corporation Ms. Lyn Russo View
12-0269 Posinelli Shughart Mr. Barton Day View
06-0043 NRS Logistics, Inc. Mr. David Hiromura  View
06-0044 Gallagher & Howarth, P.C. Ms. Liese G. Howarth View
06-0174 Alliant Techsystems Inc. (ATK) Mr. Christopher Widman View
06-0248 Currie Industrial Services, LLC Mr. Allan B. Currie, Jr. View
01-0292 World Logistic Group, Inc. Mr. Steve McKenna View
14-0234 Club Assit, North America Ms. Shelley Elzer View
01-0258 Carver Boat Corporation, LLC Mr. Jeff Guenther View
08-0160 Mr. John H. Hawn View