TITLE 49 - TRANSPORTATION

SUBTITLE B - OTHER REGULATIONS RELATING TO TRANSPORTATION

CHAPTER I - PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

SUBCHAPTER C - HAZARDOUS MATERIALS REGULATIONS

PART 175 - CARRIAGE BY AIRCRAFT

subpart c - SPECIFIC REGULATIONS APPLICABLE ACCORDING TO CLASSIFICATION OF MATERIAL

175.702 - Requirements for carriage of packages containing Class 7 (radioactive) materials in a cargo aircraft only.

  (a) As used in this section, the term group of packages means packages that are separated from each other in an aircraft by a distance of 6 m (20 feet) or less.

  (b) No person may transport in a cargo aircraft only any package required by 172.403 of this subchapter to be labeled RADIOACTIVE YELLOW-II or RADIOACTIVE YELLOW-III or FISSILE unless: (1) The total transport index for all of the packages does not exceed 50.0, the total criticality safety index for all of the packages does not exceed 50.0, and the package is carried in accordance with 175.701(a); or (2) The total transport index for all of the packages is greater than 50.0 but does not exceed 200.0, the total criticality safety index for all of the packages does not exceed 100.0. Any package, overpack or consignment having a criticality safety index greater than 50 must be transported under exclusive use; and: (i) The transport index for any group of packages does not exceed 50.0; (ii) Each group of packages is separated from every other group in the aircraft by not less than 6 m (20 feet), measured from the outer surface of each group; and (iii) The separation distance between the surfaces of the Class 7 (radioactive) materials packages, overpacks or freight containers and any space occupied by (A) Humans is at least 9 m (30 feet); and (B) Live animals is at least 0.5 m (20 inches) for journeys not exceeding 24 hours and at least 1.0 m (39 inches) for journeys longer than 24 hours.

[Amdt. 17513, 45 FR 20102, Mar. 27, 1980, as amended by Amdt. 17529, 48 FR 50461, Nov. 1, 1983; Amdt. 17547, 55 FR 52687, Dec. 21, 1990; Amdt.

17549, 58 FR 50494, Sept. 27, 1993; 66 FR 45383, Aug. 28, 2001; 69 FR 3694, Jan. 26, 2004]