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Section §175.75: Quantity limitations and cargo location

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 175.75 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
19-0073 MISTRAS Group, Inc. David Boudreaux View
17-0114 PHI.Inc Mr. Terry Myer View
00-0028 Trans World Airlines, Inc. Mr. Les Adolph View
07-0192 Alaska Airlines, Inc. SEADG Mr. Mike Tobin, CHMM View
09-0272 Lufthansa - The Americas Mr. Hilmar Leng View
00-0285 Air Transport International, L.L.C. Mr. Jack Hagenmayer View
13-0203 United Airlines, Inc. Mr. William B. Wojtas View
13-0183 Alaska Airlines Mr. Mike Tobin View
96-0200 DGI Training Center Ms Candy L. Cook View
15-0134 Alaska Airlines - SEADG Mr. Mike Tobin View
07-0180 Lixi, Inc Mr. Robert Savini View
98-0576 Hazmat Guru Consulting Mr. H.J. Pace View
05-0106 Owner/Operations Support Group, Inc. Mr. Michael J. Revis View
12-0235 Ms. Sandra Harding View
09-0254 Nippon Cargo Airlines Co., Ltd. Narita International Airport Mr. Iwahiko Uehara View
14-0174 Lufthansa Cargo Mr. Hilmar Leng View
09-0241 DHL Aviation Americas, Inc. M. Lourdes Navarro View
09-0128 Freight Runners Express, Inc. Mr. Patrick Hammer View
10-0145 KLM Royal Dutch Airlines Mr. Michael van der Velde View
06-0212 Ameriflight, Inc. Mr. Matt Payne View
98-0575 DGI Training Center Ms. Candy L Cook View
08-0159 Alaska Air Group, Inc. Mr. Mike Tobin View
10-0050 United Airlines Ms. Nancy Finkenkeller View
08-0287 Remington Arms Company, Inc. Mr. Gregory D. Kehril View
16-0097 HMT Associates, L.L.C. Mr. EA Altemos View
11-0146 Mr. Thomas W. Ferguson The Council on Safe Transportation of Hazardous Articles, Inc. View