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Section §180.205: General requirements for requalification of specification cylinders

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 180.205 on the ECFR website

Interpretation Responses

Ref ID Date Company Name Individual Name Response Document
21-0076 American Cylinder and Safety Myles L. TenBroeck View
20-0086 Cylinder Sales and Testing, LLC d/b/a Coastal Hydrotesting Jeffery Strong View
20-0088 National Presto Safety J.R. Nerat View
19-0079 Entegris, Inc James McManus View
18-0143 American Cylinder and Safety Myles L. TenBroeck View
18-0127 Dominion Technology Gases Ltd. Eric Watson View
18-0117 BOC Fire & Gas Ms. Lisa J. Nugent View
17-0062 Carbotainer SL Antonio Ruiz View
17-0094 Entegris Inc. Mr. James McManus View
05-0179 Taylor-Wharton Mr. Les Musselman, P.E. View
05-0287 Airgas, Inc. Mr. John Anderson View
CHI-14-002 Bullfrog Fire & Safety Kristie Rink View
14-0112 Hydro-Test Products, Inc. Mr. Tom Sauta View
05-0087 G & C Kinney, Inc. Mr. Glen L. Kinney View
10-0207 Airgas SAFECOR Mr. Jon Anderson View
15-0235 Airgas-SAFECOR Mr. John Anderson View
15-0184 The Chemours Company Mr. Randolph Martin View
10-0259 Airgas SAFECOR. Mr. Jon Anderson View
03-0280 ABCO Fire Protection, Inc. Mr. David L. Marciniak View
12-0176 Georgia Fire Protection Mr. W.A. Andrews View
15-0212 Paraco Gas Mr. David Latourell View
07-0077 UPS Aircraft Maintenance Hangar Mr. Robert A. Stewart View
13-0131 Mr. Tim McLoughlin M & M Metrology, Inc. View
15-0055 Mr. Attila Sonkoly View
06-0105 Volvo Aero Services (Seattle) LLC Mr. Ronnie Hamblin View
14-0123 Guerrilla Air/ Tiberius Arms Mr. Gio Islas View
11-0278 Thunderbird Cylinder Mr. Fred Nachman View
11-0151 National Aquatic Service, Inc. Mr. Michael Druce View
15-0042 Transport Canada, TDG Ms. Nida Chaudhary View
09-0236 Department of State INL/A Mr. James A. Sherman View
16-0196 PonyPak Mr. William Messner View
11-0238 NitroxFox LLC. Mr. John Fox View
12-0091 Chief Daniel H. Graves St. Pete Beach Fire Department View
09-0198 UPS Aircraft Maintenance Hangar Mr. Robert A. Stewart View
16-0047 National Aeronautics and Space Administration Mr. Russell Clautice View
07-0002 UPS Hydrostatic Shop Mr. Robert A. Stewart View
13-0224 Linde North America, Inc. Mr. Guy Dalton View
11-0220 Foster Fuels, Inc. Mr. John George View
11-0131 Flightpath Services, Inc. Mr. Douglas Svoboda View
09-0050 Hagemeyer North America Mr. Bill McDonald View
11-0058 Airspeed Press Mr. Steve Lindblom View
13-0042 City Machine and Welding, Inc. Mr. Kent Carroll View
14-0067 Transport Canada, TDG Ms. Nida Chaudhary View
16-0050 Hydro-Test Products, Inc. Mr. Tom Sauta View
07-0059 UPS Hydrostatic Shop Mr. Robert A. Stewart  View
10-0019R Mr. John Cox View
13-0071 Authorized Testing, Inc. Mr. David Fountain View
14-0144 Engineer Trainee Mr. Terrance Douglas View