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Section §178.603: Drop test

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 178.603 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
23-0092 Encore Container Chas Key View
21-0040 Department of the Army, Army Sustainment Command (ASC) ASC Packaging, Storage, and Containerization Center Logistics, Testing, and Applications Division Ryan Roberts View
19-0012 Military Surrface Deployment and Distibution Command Jeffrey Leitschuh View
00-0148 Quality Control Department Mr. Colum O'Hara View
02-0148 gh Package & Product Testing and Consulting, Inc. H. Perry Hock View
99-0264 Riviana Foods Inc. Mr. Lejo C. Brana, CPP View
02-0283 gh Package & Product Testing and Consulting, Inc. H. Perry Hock View
01-0115 gh Package & Product Testing and Consulting, Inc. Mr. H. Perry Hock View
07-0153 gh Package and Product Testing and Consulting Inc. Mr. H. Perry Hock View
05-0006 Pro-Pack Testing Laboratory, Inc. Mr. Manuel Rosa View
13-0091 Gh Package/Product Testing and Consulting, Inc. Mr. Ronald J. Sorrell View
11-0048 Container-Quinn Testing Laboratories, Inc. Mr. Stephen C. Powell View
09-0062 Container-Quinn Testing Laboratories, Inc. Mr. Stephen C. Powell View
01-0052 B Way Corporation Mr. Erik Martinsen View