§ 173.423 Requirements for multiple hazard limited quantity Class 7 (radioactive) materials.
Current through Sep 25, 2026 · Read all of Part 173
(a) Except as provided in § 173.4, when a limited quantity radioactive material meets the definition of another hazard class or division, it must be—
(1) Classed for the additional hazard;
(2) Packaged to conform with the requirements specified in § 173.421(a) through (e) or § 173.424(a) through (g), as appropriate; and
(3) Offered for transportation in accordance with the requirements applicable to the hazard for which it is classed.
(b) A limited quantity Class 7 (radioactive) material which is classed other than Class 7 in accordance with this subchapter is excepted from the requirements of §§ 173.422(a), 172.203(d), and 172.204(c)(4) of this subchapter if the entry “Limited quantity radioactive material” appears on the shipping paper in association with the basic description.
[Amdt. 173-244, 60 FR 50307, Sept. 28, 1995, as amended at 80 FR 72928, Nov. 23, 2015]
Interpretation letters (7)
- Transportation of a Type A Radioactive Package Aboard Passenger Aircraft — PHMSA, Mar 31, 2025
- Fixed Industrial Nuclear Gauges — PHMSA, Aug 30, 2019
- Limited Quantity Radioactive Material Onboard Passenger Aircraft — PHMSA, Dec 22, 2016
- Lamps that Contain both Mercury and Radioactive Material — PHMSA, Aug 17, 2005
- Radioactive Articles Containing Mercury — PHMSA, Mar 9, 2005
- "Limited Quantity Radioactive Material" Modification — PHMSA, Oct 21, 2004
- Radioactive Waste Shipments under the HMR — PHMSA, May 6, 1998