###### Editorial Note on [Part 98](/current/title-46/part-98?toc=1)

#### Editorial Note:

Nomenclature changes to part 98 appear by USCG-2009-0702, [74 FR 49232](https://www.federalregister.gov/citation/74-FR-49232), Sept. 25, 2009.

#### § 98.30-7 Materials authorized for transfer to and from a portable tank.

(a) The following hazardous materials may be transferred to and from a portable tank under this subpart:

(1) Any Grade D or Grade E combustible liquid listed in [§ 30.25-1 of this chapter](/on/2024-09-23/title-46/section-30.25-1) that does not meet the definition of any hazard class in [49 CFR part 173](/on/2024-09-23/title-49/part-173) other than that of “flammable liquid”, “combustible liquid”, “hazardous substance, or hazardous waste”;

(2) Any corrosive liquid that—

(i) Is compatible with the materials of the tank;

(ii) Meets the definition of no other hazard class in [49 CFR part 173](/on/2024-09-23/title-49/part-173); and

(iii) Is authorized for transport in an IM 101, IM 102, IMO Type 1, IMO Type 2, or UN portable tank under subpart F of [49 CFR part 173](/on/2024-09-23/title-49/part-173);

(3) Any hazardous material listed in Table [98.30-7(a)](/on/2024-09-23/title-46/section-98.30-7#p-98.30-7(a))—Certain Hazardous Materials Authorized For Transfer To and From Portable Tanks;

(4) Any environmentally hazardous substance, liquid, N.O.S., Class 9, listed in table 1 of appendix A of [49 CFR 172.101](/on/2024-09-23/title-49/section-172.101), and any aqueous solution of an environmentally hazardous substance, solid, N.O.S., Class 9, listed in that table, that meets the definition of “hazardous substance” in [49 CFR 171.8](/on/2024-09-23/title-49/section-171.8); and

(5) Other cargoes subject to regulation under [49 CFR parts 171](/on/2024-09-23/title-49/part-171) through [176](/on/2024-09-23/title-49/part-176) when authorized in writing by the Commandant. Requests for such authorization must be submitted as prescribed in [§ 153.900(d)(1) of this chapter](/on/2024-09-23/title-46/section-153.900#p-153.900(d)(1)).

(b) Grade D and Grade E combustible liquids with a flashpoint of 100 °F (38 °C) or higher by closed cup test that are not listed by name in the Hazardous Materials Table of [49 CFR 172.101](/on/2024-09-23/title-49/section-172.101) may be transferred to and from an MPT, IM 101, IM 102, IMO Type 1, IMO Type 2, or UN portable tank conforming to the T Code “T1” specified in [49 CFR 172.102(c)(7)(i)](/on/2024-09-23/title-49/section-172.102#p-172.102(c)(7)(i)).

(c) Sulfuric acid having a concentration of not over 51 percent may be transferred to or from an MPT only if the MPT is lined with rubber or with material equally acid-resistant and equally strong and durable.

(d) Sulfuric acid having a concentration of 65.25 percent or greater may be transferred to or from any portable tank; *provided* that the corrosion rate on steel, measured at 100 °F (38 °C), of sulfuric acid having a concentration of greater than 65.25 percent is not greater than the corrosion rate of such an acid having a concentration of 65.25 percent.

(e) Environmentally hazardous substances (see [paragraph (a)(4)](/on/2024-09-23/title-46/section-98.30-7#p-98.30-7(a)(4)) of this section) may be transferred only to and from an MPT, IM 101, IM 102, IMO Type 1, IMO Type 2, or UN portable tank.

(f) A portable tank authorized for transfer of hazardous material in this section may be substituted by another portable tank in accordance with [49 CFR 173.32(b)](/on/2024-09-23/title-49/section-173.32#p-173.32(b)).

(g) No hazardous material not referred to in this section may be transferred to or from a portable tank onboard a vessel.

Table [98.30-7](/on/2024-09-23/title-46/section-98.30-7)(a)—Certain Hazardous Materials Authorized For Transfer To and From Portable Tanks

| Acetone | |
| Alcohols; flash point of 80 °F (27 °C) or less by open-cup test | |
| Benzene | |
| Gasoline | |
| Mixtures of Hydrochloric acid and hydrofluoric acid containing not more than 36 percent hydrochloric acid or 2 percent hydrofluoric acid1 | |
| Methyl Ethyl Ketone | |
| Toluene (Toluol) | |
| | |
| --- | --- |
| **Note:** | |
| 1 Each MPT must be lined with rubber or with material equally acid-resistant and equally strong and durable. | |

[CGD 84-043, [55 FR 37411](https://www.federalregister.gov/citation/55-FR-37411), Sept. 11, 1990; [55 FR 40755](https://www.federalregister.gov/citation/55-FR-40755), Oct. 4, 1990, as amended by CGD 97-057, [62 FR 51046](https://www.federalregister.gov/citation/62-FR-51046), Sept. 30, 1997. Redesignated and amended by USCG-2011-0088, [78 FR 54785](https://www.federalregister.gov/citation/78-FR-54785), [54786](https://www.federalregister.gov/citation/78-FR-54786), Sept. 6, 2013]