[Code of Federal Regulations]
[Title 49, Volume 2]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR177.843]

[Page 757-758]
 
                        TITLE 49--TRANSPORTATION
 
 CHAPTER I--RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 177_CARRIAGE BY PUBLIC HIGHWAY--Table of Contents
 
                     Subpart B_Loading and Unloading
 
Sec.  177.843  Contamination of vehicles.

    (a) Each motor vehicle used for transporting Class 7 (radioactive) 
materials under exclusive use conditions in accordance with Sec.  
173.427(b)(3) or (c) or Sec.  173.443(c) of this subchapter must be 
surveyed with radiation detection instruments after each use. A vehicle 
may not be returned to service until the radiation dose rate at every 
accessible surface is 0.005 mSv per hour (0.5 mrem per hour) or less and 
the removable (non-fixed) radioactive surface contamination is not 
greater than the level prescribed in Sec.  173.443(a) of this 
subchapter.
    (b) This section does not apply to any vehicle used solely for 
transporting Class 7 (radioactive) material if a survey of the interior 
surface shows that the radiation dose rate does not exceed 0.1 mSv per 
hour (10 mrem per hour) at the interior surface or 0.02 mSv per hour (2 
mrem per hour) at 1 meter (3.3 feet) from any interior surface. These 
vehicles must be stenciled with the words ``For Radioactive Materials 
Use Only'' in lettering at least 7.6 cm (3 inches) high in a conspicuous 
place, on both sides of the exterior of the vehicle. These vehicles must 
be kept closed at all times other than loading and unloading.
    (c) In case of fire, accident, breakage, or unusual delay involving 
shipments of Class 7 (radioactive) material, see Sec. Sec.  171.15, 
171.16 and 177.854 of this subchapter.
    (d) Each transport vehicle used to transport Division 6.2 materials 
must

[[Page 758]]

be disinfected prior to reuse if a Division 6.2 material is released 
from its packaging during transportation. Disinfection may be by any 
means effective for neutralizing the material released.

[Amdt. 177-3, 33 FR 14933, Oct. 4, 1968, as amended by Amdt. 177-35, 41 
FR 16131, Apr. 15, 1976; Amdt. 177-57, 48 FR 10247, Mar. 10, 1983; Amdt. 
177-78, 55 FR 52712, Dec. 21, 1990; Amdt. 177-85, 60 FR 50335, Sept. 28, 
1995; 63 FR 52850, Oct. 1, 1998; 65 FR 58631, Sept. 29, 2000; 67 FR 
53142, Aug. 14, 2002]