On October 30, 2020 (85 FR 68790), the Pipeline and Hazardous Materials Safety Administration (PHMSA) published a final rule in the federal register amending the requirements of the requalification periods for certain Department of Transportation (DOT) 4-series specification cylinders in noncorrosive gas service in response to a petition for rulemaking submitted by the National Propane Gas Association (NPGA). This final rule is effective November 30, 2020 with voluntary compliance authorized October 30, 2020 for all amendments.
Click on the link below to download the full version:
PHMSA 10-30-2020 final rule cylinder requal update