A service tech is asked to load a specification cargo tank because 'it ran last week.' 49 CFR 180.407(a)(1) says a cargo tank constructed in accordance with a DOT specification for which a test or inspection specified in this section has become due may not be filled and offered for transportation or transported until the test or inspection has been successfully completed. The paragraph does not apply to any cargo tank filled prior to the test or inspection due date.
The interval is in the table under 180.407(c), not in a shop saying.
Originally published on Propane Insider.