49 CFR 174.700 - Special handling requirements for Class 7 (radioactive) materials.

Status message

There are 2 Updates appearing in the Federal Register for 49 CFR 174. View below or at eCFR (GPOAccess)
prev | next
§ 174.700 Special handling requirements for Class 7 (radioactive) materials.
(a) Each rail shipment of low specific activity materials or surface contaminated objects as defined in § 173.403 of this subchapter must be loaded so as to avoid spillage and scattering of loose material. Loading restrictions are prescribed in § 173.427 of this subchapter.
(b) The number of packages of Class 7 (radioactive) materials that may be transported by rail car or stored at any single location is limited to a total transport index and a total criticality safety index (as defined in § 173.403 of this subchapter) of not more than 50 each. This provision does not apply to exclusive use shipments as described in §§ 173.403, 173.427, 173.441, and 173.457 of this subchapter.
(c) Each package of Class 7 (radioactive) material bearing RADIOACTIVE YELLOW-II or RADIOACTIVE YELLOW-III labels may not be placed closer than 0.9 m (3 feet) to an area (or dividing partition between areas) which may be continuously occupied by any passenger, rail employee, or shipment of one or more animals, nor closer than 4.5 m (15 feet) to any package containing undeveloped film (if so marked). If more than one package of Class 7 (radioactive) materials is present, the distance must be computed from the table below on the basis of the total transport index number (determined by adding together the transport index numbers on the labels of the individual packages) of packages in the rail car or storage area:
Total transport index Minimum separation distance to nearest undeveloped film Minimum distance to area of persons or minimum distance from dividing partition of a combination car
Meters Feet Meters Feet
Note: The distance in this table must be measured from the nearest point on the nearest packages of Class 7 (radioactive) materials.
None 0 0 0 0
0.1 to 10.0 4.5 15 0.9 3
10.1 to 20.0 6.7 22 1.2 4
20.1 to 30.0 7.7 29 1.5 5
30.1 to 40.0 10 33 1.8 6
40.1 to 50.0 10.9 36 2.1 7
(d) Each shipment of fissile material packages must conform to requirements of §§ 173.457 and 173.459.
(e) Each fissile material, controlled shipment must be transported in accordance with one of the methods prescribed in § 173.457 of this subchapter. The transport controls must be adequate to assure that no fissile material, controlled shipment is transported in the same transport vehicle with any other fissile Class 7 (radioactive) material shipment. In loading and storage areas, each fissile material, controlled shipment must be segregated by a distance of at least 6 m (20 feet) from other packages required to bear one of the “radioactive” labels described in part 172 of this subchapter.
(f) A person shall not remain unnecessarily in, on or near a transport vehicle containing Class 7 (radioactive) materials.
(g) In the case of packages shipped under the exclusive use provisions of § 173.441(b) of this subchapter for packages with external radiation levels in excess of 2 mSv per hour (200 mrem per hour) at the package surface—
(1) The transport vehicle must meet the requirements for a closed transport vehicle (§ 173.403 of this subchapter);
(2) Each package must be secured so that its position within the transport vehicle remains fixed under conditions normally incident to transportation; and
(3) The radiation level may not exceed 0.02 mSv per hour (2 mrem per hour) in any normally occupied position in the transport vehicle or adjacent rail car.
[Amdt. 174-80, 60 FR 50331, Sept. 28, 1995, as amended by Amdt. 174-80, 61 FR 20753, May 8, 1996; 66 FR 45383, Aug. 28, 2001; 69 FR 3693, Jan. 26, 2004]

Title 49 published on 2013-10-01

The following are only the Rules published in the Federal Register after the published date of Title 49.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-07-11; vol. 79 # 133 - Friday, July 11, 2014
    1. 79 FR 40590 - Hazardous Materials: Compatibility With the Regulations of the International Atomic Energy Agency (RRR)
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Pipeline and Hazardous Materials Safety Administration
      Final rule.
      Effective date: October 1, 2014. Voluntary compliance date: PHMSA is authorizing voluntary compliance beginning July 11, 2014. Delayed compliance date: Unless otherwise specified, compliance with the amendments adopted in this final rule is required beginning July 13, 2015. Incorporation by reference date: The incorporation by reference of certain publications listed in this rule is approved by the Director of the Federal Register as of October 1, 2014.
      49 CFR Parts 171, 172, 173, 174, 175, 176, 177 and 178

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code

Title 49 published on 2013-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 49 CFR 174 after this date.

  • 2014-08-01; vol. 79 # 148 - Friday, August 1, 2014
    1. 79 FR 45016 - Hazardous Materials: Enhanced Tank Car Standards and Operational Controls for High-Hazard Flammable Trains
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Pipeline and Hazardous Materials Safety Administration
      Notice of proposed rulemaking (NPRM).
      Comments must be received by September 30, 2014.
      49 CFR Parts 171, 172, 173, 174, and 179