1 Jul 2025

⚠️New Proposed Rule on 10-Year Cylinder Requalification in Transport

Hazardous Materials: Adoption of Department of Transportation Special Permit 14175

Summary

PHMSA proposes adopting the provisions of Department of Transportation (DOT) special permit (SP) 14175 into the hazardous materials regulations to authorize a 10-year requalification period when using the ultrasonic examination (UE) testing method for DOT specification 3A and 3AA used for flammable and non-flammable, nonpoisonous gas service. The proposed adoption reflects advances in testing technology and would relieve the burden of performing more frequent cylinder requalification.

Agencies

  • Transportation Department
  • Pipeline and Hazardous Materials Safety Administration

Business Impact ?

$$$ - High

The proposed rule to adopt a 10-year requalification period for DOT specification 3A and 3AA cylinders reduces regulatory burdens and costs associated with more frequent testing, presenting significant financial implications for businesses in the hazardous materials sector. The use of advanced ultrasonic examination technology offers a more efficient testing method, enhancing productivity and reducing downtime.

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