[Code of Federal Regulations]

[Title 49, Volume 2]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR177.843]



[Page 794]

 

                        TITLE 49--TRANSPORTATION

 

   CHAPTER I--PIPELINE AND HAZARDOUS MATERIALS SAFETY 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 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]