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Sections3

Subpart B—Specifications for Inside Containers, and Linings37

Subpart C—Specifications for Cylinders27

Subpart H—Specifications for Portable Tanks22

Subpart J—Specifications for Containers for Motor Vehicle Transportation79

Subpart K—Specifications for Packagings for Class 7 (Radioactive) Materials1

Subpart L—Non-bulk Performance-Oriented Packaging Standards23

Subpart M—Testing of Non-bulk Packagings and Packages10

Subpart N—IBC Performance-Oriented Standards10

Subpart O—Testing of IBCs14

Subpart P—Large Packagings Standards9

Subpart Q—Testing of Large Packagings8

Subpart R—Flexible Bulk Container Standards5

Subpart S—Testing of Flexible Bulk Containers9

Regulationcurrent

49 CFR 178.337

Specification MC 331; cargo tank motor vehicle primarily for transportation of compressed gases as defined in subpart G of part 173 of this subchapter.

Current as of 2026-08-18 Government source

eCFR editorial compilationAuthoritative but unofficial

View source

21-0038

Momentive Performance Materials — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

Unnumbered PHMSA interpretation

Kansas Highway Patrol — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

20-0033

Fleener Consulting LLC — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

20-0083

Growmark, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

20-0013

Railsback Hazmat Safety Professionals LLC — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

19-0107

Lowther Johnson Attorneys at Law, LLC — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

19-0119

Nutrien — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

19-0047

Mr. Donald Brittingham — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

18-0125

Truck Trailer Manufacturers Association — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

16-0191

Wisconsin State Patrol — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

16-0001R

Patriot Tank Lines Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

17-0020

Keehn Service Corporation — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

17-0040

HazMat Resources, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

17-0083

Gold Tank Inspection Service Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

17-0042

Trinity Industrials. LLC — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

16-0009

Innovative Safety Solutions, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

16-0151

HazMat Resources, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

16-0090

Texas Trailer Corporation — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

16-0130

One CIS Insurance Company — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

16-0130

One CIS Insurance Company — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

16-0033

Mr. Daniel A. Justis — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

16-0001

Patriot Tank Lines Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

15-0079

Renaldo Sales & Service, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

15-0242

AmeriGas Propane — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

14-0235

Trinity Containers, LLC — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

15-0005

Traffic Stripes, LLC. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

14-0180

Countryside Tank — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

14-0180

Countryside Tank Division of Iowa Steel Fabrication, LLC — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

13-0143

Mr. Joe Calonge — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

12-0144

HazMat Resources, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

13-0050

Chevron Phillips Chemical Company LP — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

12-0145

HazMat Resources Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

11-0157

Mr. Daniel G. Shelton — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

12-0005

Global Passive Safety System Ltd. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

11-0055

Railroad Commission of Texas — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

11-0067

Airgas SAFECOR — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

10-0242

URS Corporation — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

09-0306

Hazmat Resources, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

09-0039

HazMat Resources, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

08-0215

Flash DOT Compliance Services — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

07-0031

West-Mark — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

06-0260

D.J.'s Truck Repair, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

07-0169

Greenberg Traurig, LLP — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

06-0020

Trinity Industries, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

07-0123

Aug 13, 2007 — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

05-0195

Goodall Rubber Company — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

05-0200

Mr. Ed Mansell — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

04-0206

Mississippi Tank Company — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

04-0124

WRD — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

03-0057

Allied Universal Corp. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

02-0163

Suburban Propane — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

99-0248

Arizona Department of Public Safety — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

00-0316

Keehn Service Corporation — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

00-0334

Railroad Commission of Texas — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

00-0184

LaRoche Industries, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

00-0123

Keehn Service Corporation — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

00-0382

Federal Motor Carrier Safety Administration — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

00-0079

Trinity Industries, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

99-0136

RNG Pro-Tech, Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

98-0281

Safe Delivery System, L.L.C. (SDS — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

98-0596

Fort Edward Express Co., Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

98-0592

Mr. Roy E. Hanson — Hazardous Materials Safety Interpretation

178.337 · interpreted by

Guidance

98-0548

Ross Trucking Co., Inc. — Hazardous Materials Safety Interpretation

178.337 · interpreted by