Clarifications
ATRI Releases Rollover Data
ATRI (the American Transportation Research Institute) released findings in early May related to its study...
Clarification (?) on DOT-412 Tanks Intended to Be Loaded by Vacuum
PHMSA has issued an interpretation on the regulatory requirements for a tank that is intended...
Clarification on 6″ Bumper (REPD) Clearance Requirement
9/22/14 - PHMSA has issued a memo clarifying the 6" clearance rule in 178.345-8(d)(1). Basically,...
Clarification on Mounting Pad Requirements
PHMSA has issued a memo clarifying the requirements for attaching structural members and appurtenances in...
Interpretation on Rings
11/25/14 - You may or may not be aware of the flap surrounding some vessels...
UPDATE to Use of Current ASME Code (HM-261)
7/1/16 - On 4/29/16, the DOT has published a rule (view it here) that finally abandons...
UPDATE on Incorporation of ASME Section XII (HM-241)
4/29/16 - DOT has published supplemental notice of proposed rulemaking on the incorporation of Section...
FINAL RULE to Use Current ASME Code (HM-219C)
On 11/25/20, the DOT has published a rule (view it here) that updates the version of...
