49 CFR 172 Special Provision TP12 (TP-Codes)

These provisions apply to the transportation of hazardous materials in IM and UN Specification portable tanks.

Code	TP12
Description	This material is considered highly corrosive to steel.
HazMat with this Code	NA2927 - Ethyl phosphonothioic dichloride, anhydrous NA2845 - Ethyl phosphonous dichloride, anhydrous pyrophoric liquid NA2927 - Ethyl phosphorodichloridate NA2845 - Methyl phosphonous dichloride, pyrophoric liquid UN 2031 - Nitric acid other than red fuming, with more than 70 percent nitric acid UN 1831 - Sulfuric acid, fuming with 30 percent or more free sulfur trioxide