Section 175.700

49 CFR Ch. I (10-1-18 Edition)

contamination. All contamination discovered must be either isolated or removed from the aircraft. The operation
of an aircraft contaminated with such
Division 6.1 materials is considered to
be the carriage of poisonous materials
under paragraph (a) of this section.
(c) When unloaded from the aircraft,
each package, overpack, pallet, or unit
load device containing a Division 6.2
material must be inspected for signs of
leakage. If evidence of leakage is
found, the cargo compartment in which
the package, overpack, or unit load device was transported must be disinfected. Disinfection may be by any
means that will make the material released ineffective at transmitting disease.
[71 FR 14604, Mar. 22, 2006, as amended at 71
FR 32263, June 2, 2006; 80 FR 1164, Jan. 8, 2015]

Section 175.700 Special limitations and requirements for Class 7 materials.
(a) Except as provided in SectionSection 173.4a,
173.422 and 173.423 of this subchapter,
no person may carry any Class 7 materials aboard a passenger-carrying aircraft unless that material is intended
for use in, or incident to research (See
Section 171.8 of this subchapter), medical diagnosis or treatment. Regardless of its
intended use, no person may carry a
Type B(M) package aboard a passengercarrying aircraft, a vented Type B(M)
package aboard any aircraft, or a liquid pyrophoric Class 7 material aboard
any aircraft.
(b) Limits for transport index and criticality safety index. A person may carry
the following Class 7 (radioactive) materials aboard an aircraft only when - 
(1) On a passenger-carrying aircraft - 
(i) Each single package on the aircraft has a transport index no greater
than 3.0;
(ii) The combined transport index
and the combined criticality index of
all the packages on the aircraft are
each no greater than 50.
(2) On a cargo aircraft - 
(i) Each single package on the aircraft has a transport index no greater
than 10.0.
(ii) The combined transport index of
all the packages on the aircraft is no
greater than 200, and the combined
criticality index of all the packages on
the aircraft is no greater than - 

(A) 50 on a non-exclusive use cargo
aircraft, or
(B) 100 on an aircraft assigned for the
exclusive use of the shipper [offeror]
for the specific shipment of fissile
Class 7 material. Instructions for the
exclusive use must be developed by the
shipper [offeror] and carrier, and the
instructions must accompany the shipping papers.
(3) The combined transport index and
combined criticality index are determined by adding together the transport
index and criticality index numbers,
respectively, shown on the labels of the
individual packages.
(c) No person may carry in a passenger-carrying aircraft any package
required to be labeled RADIOACTIVE
YELLOW-II or RADIOACTIVE YELLOW-III label unless the package is
carried on the floor of the cargo compartment or freight container.
[71 FR 14604, Mar. 22, 2006, as amended at 74
FR 2268, Jan. 14, 2009]

Section 175.701 Separation distance requirements for packages containing
Class 7 (radioactive) materials in
passenger-carrying aircraft.
(a) The following table prescribes the
minimum separation distances that
must be maintained in a passenger-carrying aircraft between Class 7 (radioactive) materials labeled RADIOACTIVE YELLOW-II or RADIOACTIVE
YELLOW-III and passengers and crew:
Transport index or sum of
transport indexes of all packages in the aircraft or
predesignated area

Minimum separation
distances
Centimeters

0.1 to 1.0 ...............................
1.1 to 2.0 ...............................
2.1 to 3.0 ...............................
3.1 to 4.0 ...............................
4.1 to 5.0 ...............................
5.1 to 6.0 ...............................
6.1 to 7.0 ...............................
7.1 to 8.0 ...............................
8.1 to 9.0 ...............................
9.1 to 10.0 .............................
10.1 to 11.0 ...........................
11.1 to 12.0 ...........................
12.1 to 13.0 ...........................
13.1 to 14.0 ...........................
14.1 to 15.0 ...........................
15.1 to 16.0 ...........................
16.1 to 17.0 ...........................
17.1 to 18.0 ...........................
18.1 to 20.0 ...........................
20.1 to 25.0 ...........................
25.1 to 30.0 ...........................
30.1 to 35.0 ...........................
35.1 to 40.0 ...........................

30
50
70
85
100
115
130
145
155
165
175
185
195
205
215
225
235
245
260
290
320
350
375

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