Other special requirements for the acceptance and carriage of packages containing Class 7 (radioactive) materials.

(a) No person may carry in an aircraft any package of Class 7 (radioactive) materials required by § 172.403 of this subchapter to be labeled Radioactive Yellow-II or Radioactive Yellow-III closer than the distances shown in the following table to any package marked as containing undeveloped film:

Transport index Minimum separation distance to nearest undeveloped film for various times of transit Up to 2 hours Meters Feet 2 to 4 hours Meters Feet 4 to 8 hours Meters Feet 8 to 12 hours Meters Feet Over 12 hours Meters Feet 0.1 to 1.0 0.3 1 0.6 2 0.9 3 1.2 4 1.5 5 1.1 to 5.0 0.9 3 1.2 4 1.8 6 2.4 8 3.3 11 5.1 to 10.0 1.2 4 1.8 6 2.7 9 3.3 11 4.5 15 10.1 to 20.0 1.5 5 2.4 8 3.6 12 4.8 16 6.6 22 20.1 to 30.0 2.1 7 3.0 10 4.5 15 6.0 20 8.7 29 30.1 to 40.0 2.4 8 3.3 11 5.1 17 6.6 22 9.9 33 40.1 to 50.0 2.7 9 3.6 12 5.7 19 7.2 24 10. 8 36

(b) No person may accept for carriage in an aircraft packages of Class 7 (radioactive) materials, other than limited quantities, contained in a rigid or non-rigid overpack, including a fiberboard box or plastic bag, unless they have been prepared for shipment in accordance with § 173.448(g) of this subchapter.

(c) No person shall carry in an aircraft a fissile material controlled shipment (as defined in § 173.403 of this subchapter), except—

(1) In a cargo aircraft only which has been assigned for the exclusive use of the shipper for the specific shipment of fissile Class 7 (radioactive) material. Instructions for the exclusive use must be developed by the shipper and carrier, and the instructions issued with the shipping papers; or

(2) In an aircraft in which there are no other packages required to bear a radioactive label as prescribed in § 172.403 of this subchapter. Specific arrangements must be made between the shipper and carrier, with instructions to that effect issued with the shipping papers.

(d) No person shall offer or accept for transportation, or transport, by air—

(1) Vented Type B(M) packages, packages which require external cooling by an ancillary cooling system or packages subject to operational controls during transport; or

(2) Liquid pyrophoric Class 7 (radioactive) materials.

(e) Packages with radiation levels at the package surface or a transport index in excess of the limits specified in § 173.441(a) of this subchapter may not be transported by aircraft except under special arrangements approved by RSPA.

[Amdt. 175-13, 45 FR 20102, Mar. 27, 1980, as amended by Amdt. 175-26, 48 FR 10245, Mar. 10, 1983; Amdt. 175-26, 48 FR 31220, July 7, 1983; Amdt. 175-29, 48 FR 50461, Nov. 1, 1983; Amdt. 175-47, 55 FR 52687, Dec. 21, 1990; Amdt. 175-53, 60 FR 50333, Sept. 28, 1995]