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Final Rule Alert: PHMSA Amends 4-series Cylinder Requalification Periods

Posted on 11/3/2020 by Roger Marks

In response to a petition from the National Propane Gas Association (NPGA), US DOT PHMSA issued a Final Rule to lengthen some requalification periods for certain DOT 4-series cylinders in non-corrosive gas service.

The Final Rule amends 49 CFR 180.209(e) and takes effect on November 30, 2020.

The Rule authorizes:
  • 12-year initial and subsequent requalification periods for volumetric expansion testing; and
  • A 12-year initial requalification period for proof pressure testing.
Note: The 10-year subsequent requalification period for proof pressure testing remains in effect.  

To qualify for the 12-year requalification period for volumetric expansion testing (instead of the previous 5-year period), cylinders must be:
  • Made in conformance with DOT specs 4B, 4BA, 4BW, or 4E;
  • Protected externally by a suitable corrosion-resistant coating;
  • Exclusively used for non-corrosive gas; and
  • Commercially free from corroding components.
The Final Rule appeared in the Federal Register on October 30, 2020. 

Complete DOT Hazmat Training - Only 2 Sessions Left! 

DOT hazmat online trainingYour last two chances for Lion's Hazmat Ground Shipper Certification webinar take place on November 18–19 and December 16–17.

Join a Lion instructor for this two-day webinar and develop a step-by-step process to ship hazmat of any class by highway in full compliance with 49 CFR Hazardous Materials Regulations (HMR).

Experienced shippers can knock out recurrent DOT hazmat training in one day with our Recurrent Hazmat Ground Shipper webinar on November 5 or December 3. 

Instructor-led training for air (IATA) and vessel (IMDG) shippers is also available. Join us live or train at your own pace at Lion.com/Hazmat. 

US DOT requires hazmat training once every three years for all "hazmat employees." (49 CFR 172.704) 

Tags: 49 CFR 180.209, cylinders, hazardous materials, new rules

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