10 C.F.R. § 150.21 Transportation of special nuclear material by aircraft.
Title 10 - Energy
Except as specifically approved by the Commission no shipment of special nuclear material in excess of 20 grams or 20 curies whichever is less of plutonium or uranium-233 shall be made by a licensee of an Agreement State in passenger aircraft. [38 FR 3039, Feb. 1, 1973]
Title 10: Energy
PART 150—EXEMPTIONS AND CONTINUED REGULATORY AUTHORITY IN AGREEMENT STATES AND IN OFFSHORE WATERS UNDER SECTION 274
Reciprocity
§ 150.21 Transportation of special nuclear material by aircraft.