---
kind: "section"
citation: "49 C.F.R. § 172.326"
title: "49"
number: "172.326"
heading: "Portable tanks."
url: "https://uscodex.org/cfr/49/172.326"
---

# §172.326. Portable tanks.

- (a) **Shipping name.** No person may offer for transportation or transport a portable tank containing a hazardous material unless it is legibly marked on two opposing sides with the proper shipping name specified for the material in the [§ 172.101](/cfr/49/172.101.md) table. For transportation by vessel, the minimum height for a proper shipping name marked on a portable tank is 65 mm (2.5 inches); except that portable tanks with a capacity of less than 3,000 L (792.52 gallons) may reduce the marking size to not less than 12 mm (0.47 inches).
- (b) **Owner's name.** The name of the owner or of the lessee, if applicable, must be displayed on a portable tank that contains a hazardous material.
- (c) **Identification numbers.**
  - (1) If the identification number markings required by [§ 172.302(a)](/cfr/49/172.302.md?p=a) are not visible, a transport vehicle or freight container used to transport a portable tank containing a hazardous material must be marked on each side and each end as required by [§ 172.332](/cfr/49/172.332.md) with the identification number specified for the material in the [§ 172.101](/cfr/49/172.101.md) table.
  - (2) Each person who offers a portable tank containing a hazardous material to a motor carrier, for transportation in a transport vehicle or freight container, shall provide the motor carrier with the required identification numbers on placards, orange panels, or the white square-on-point configuration, as appropriate, for each side and each end of the transport vehicle or freight container from which identification numbers on the portable tank are not visible.
- (d) **NON-ODORIZED marking on portable tanks containing LPG.** No person may offer for transportation or transport a portable tank containing unodorized liquefied petroleum gas (LPG) as authorized in [§ 173.315(b)(1)](/cfr/49/173.315.md?p=b-1) of this subchapter unless it is legibly marked NON-ODORIZED or NOT ODORIZED on two opposing sides near the marked proper shipping name required by [paragraph (a)](#a) of this section, or near the placards. The NON-ODORIZED or NOT ODORIZED marking may appear on a portable tank used for both unodorized and odorized LPG.

## Notes

### Amendments

[Amdt. 172-123, 55 FR 52592, Dec. 21, 1990, as amended at 56 FR 66255, Dec. 20, 1991; 69 FR 64471, Nov. 4, 2004; 76 FR 3367, Jan. 19, 2011; 80 FR 1150, Jan. 8, 2015; 81 FR 35540, June 2, 2016]

### Authority

Authority: 49 U.S.C. 5101-5128, 44701; 49 CFR 1.81, 1.96 and 1.97.

### Source

Source: Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, unless otherwise noted.

### Amendments

[Amdt. 172-123, 55 FR 52592, Dec. 21, 1990, as amended at 56 FR 66255, Dec. 20, 1991; 69 FR 64471, Nov. 4, 2004; 76 FR 3367, Jan. 19, 2011; 80 FR 1150, Jan. 8, 2015; 81 FR 35540, June 2, 2016]