49 C.F.R. § 173.25 Authorized packagings and overpacks.
Title 49 - Transportation
(a) Authorized packages containing hazardous materials may be offered for transportation in an overpack as defined in §171.8 of this subchapter, if all of the following conditions are met: (1) The package meets the requirements of §§173.21 and 173.24 of this subchapter. (2) The overpack is marked with the proper shipping name and identification number, when applicable, and is labeled as required by this subchapter for each hazardous material contained therein, unless marking and labels representative of each hazardous material in the overpack are visible. (3) Each package subject to the orientation marking requirements of §172.312 of this subchapter is packed in the overpack with its filling holes up and the overpack is marked with package orientation marking arrows on two opposite vertical sides of the overpack with the arrows pointing in the correct direction of orientation. (4) The overpack is marked with the word “OVERPACK” when specification packagings are required, unless specification markings on the inside packages are visible. Alternatively, an overpack marked with a statement indicating that the “inside (inner) packages comply with prescribed specifications” may be used to satisfy the provisions of this paragraph until October 1, 2007. (5) Packages containing Class 8 (corrosive) materials in Packing Group I or Division 5.1 (oxidizing) materials in Packing Group I may not be overpacked with any other materials. (b) Shrink-wrapped or stretch-wrapped trays may be used as outer packagings for inner packagings prepared in accordance with the limited quantity provisions or consumer commodity provisions of this subchapter, provided that— (1) Inner packagings are not fragile, liable to break or be easily punctured, such as those made of glass, porcelain, stoneware or certain plastics; and (2) Each complete package does not exceed 20 kg (44 lbs) gross weight. (c) Hazardous materials which are required to be labeled POISON may be transported in the same motor vehicle with material that is marked or known to be foodstuffs, feed or any edible material intended for consumption by humans or animals provided the hazardous material is marked, labeled, and packaged in accordance with this subchapter, conforms to the requirements of paragraph (a) of this section and is overpacked as specified in §177.841(e) of this subchapter or in an overpack which is a UN 1A2, 1B2, or 1N2 drum tested and marked for a Packing Group II or higher performance level. [Amdt. 173–165, 48 FR 28099, June 20, 1983, as amended by Amdt. 173–224, 55 FR 52612 Dec. 21, 1990; 56 FR 66266, Dec. 20, 1991; Amdt. 173–234, 58 FR 51532, Oct. 1, 1993; Amdt. 173–214, 59 FR 67491, Dec. 29, 1994; 64 FR 10776, Mar. 5, 1999; 68 FR 45032, July 31, 2003; 69 FR 76155, Dec. 20, 2004; 70 FR 34397, June 14, 2005]
Title 49: Transportation
PART 173—SHIPPERS—GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS
Subpart B—Preparation of Hazardous Materials for Transportation
§ 173.25 Authorized packagings and overpacks.
