NH3 Nurse Tank Markings for Tanks Utilizing the DOT-SP 13554 Special Permit

Important Update from our Partners at ODA

Our partners at the Ohio Department of Agriculture (ODA) recently shared this important information with us regarding Anhydrous Ammonia (NH3) nurse tank markings.

Nurse Tanks without data plates are no longer required to have a marking on them that says DOT-SP 13554 or NTIP.

Each cargo tank must be durably and legibly marked, in English, with the inspection date (two-digit month and year or mm-yy) and the type of test or inspection performed (V, P, T) near the specification plate or anywhere on the front head. These markings must be at least 1.25 inches high and in close proximity to the owner’s unique identification number on the tank. The unique identification number markings must be at least a half an inch high and wide.

Example of Inspection Marking: 01-08 V,T,P

This indicates that the tank was inspected in January, 2008 and passed the Visual inspection, Thickness inspection and the Pressure inspection, and this tank would need to be re-inspected prior to February 1, 2013.

Additionally, tanks with data plates that are still attached and legible do not need to have a unique identification number marking on them, but they can have one on them if they would like to.

Last but not least, if the tank has been placed by the facility as out-of-service for any reason, it needs to be permanently marked as OUT OF SERVICE. This could be done with a sticker or a permanent marker.