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Billing Code - PHMSA - Department of Transportation

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liquid IBC specifications (31H1, 31H2, 31HZ1, and 31HZ2) from IB <strong>Code</strong>s IB4 through<br />

IB8. Therefore, <strong>PHMSA</strong> is editorially correcting the IBC <strong>Code</strong> Table in<br />

§ 172.102(c)(4).<br />

Special Provision TP39<br />

Special provision, TP39, is added and assigned to HMT entry‘‘UN2381, Dimethyl<br />

disulfide.’’ This special provision indicates that portable tank instruction T4 may continue<br />

to be applied until December 31, 2018. This provides more time for portable tank<br />

transporters to transition their current fleets.<br />

Special Provision TP40<br />

Special provision TP40 is added and assigned to HMT entries “UN3500, Chemical<br />

under pressure, n.o.s.; UN3501, Chemical under pressure, flammable, n.o.s.; UN3503,<br />

Chemical under pressure, corrosive, n.o.s., UN3503; UN3502, Chemical under pressure,<br />

toxic n.o.s.; UN3504, Chemical under pressure, flammable, toxic, n.o.s.; and UN3505,<br />

Chemical under pressure, flammable, corrosive, n.o.s.” The special provision indicates<br />

that the portable tanks must not be transported when connected with spray application<br />

equipment. This provides an additional measure preventing inadvertent release <strong>of</strong><br />

hazardous materials in transport.<br />

Special Provision TP41<br />

Special provision TP41 is added and assigned to HMT entries ‘‘UN3148, Water-<br />

reactive liquid, n.o.s.,’’ indicating that the portable tank instruction T9 may continue to be<br />

applied until December 31, 2018.<br />

Special Provision T50<br />

Special provision T50 is revised to note that this provision is applicable to<br />

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