and provides an exemption for such experimentation, it is doubtful 
that section 6 could be utilized to require registration. Otherwise, 
the intent of Congress in enacting the exemption would be undermined. 
DEPARTMENT OF TRANSPORATION 
AND 
CENTER FOR DISEASE CONTROL, HEW 
The Hazardous Materials Transportation Act (HMTA) and section 361 
of the PHS Act give the Department of Transportation and the Center for 
Disease Control, HEW, respectively, authority to regulate shipment of 
hazardous materials in interstate commerce. 4/ The HMTA authorizes the 
Secretary of Transportation to issue and enforce regulations governing 
any safety aspect of the transportation of hazardous materials, including 
but not limited to packing, repacking, handling, labeling, mailing, 
placarding, and routing, and the manufacture, fabrication, marking, 
maintenance, reconditioning, repair, or testing of packages or containers 
represented, marked, certified, or sold by certain persons for use in 
the transportation of certain hazardous materials. 5/ 
Section 361 authorizes the Secretary of HEW to ", . .make and 
4/ Including intrastate commerce that affects interstate commerce. 
5 j In the Federal Register for November 26, 1976, at page 52086, the 
Department of Transportation has asked for public comment as to 
whether it should expand the definition of "etiologic agents" in 
DOT regulations". . .to include biological materials (such as 
recombinant DNA) used in or derived from genetic studies." 
34 
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