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barreled rifle, a machinegun, a semiautomatic assault weapon, 
ammunition for any such gun or weapon, or a large capacity 
ammunition feeding device, in carrying out the duties of the 
Commission, the Commission may authorize the security personnel 
of any licensee or certificate holder of the Commission (including 
an employee of a contractor of such a licensee or certificate holder) 
to transfer, receive, possess, transport, import, and use 1 or more 
such guns, weapons, ammunition, or devices, if the Commission 
determines that— 
‘‘(1) the authorization is necessary to the discharge of the 
official duties of the security personnel; and 
‘‘(2) the security personnel— 
‘‘(A) are not otherwise prohibited from possessing or 
receiving a firearm under Federal or State laws relating 
to possession of firearms by a certain category of persons; 
‘‘(B) have successfully completed any requirement 
under this section for training in the use of firearms and 
tactical maneuvers; 
‘‘(C) are engaged in the protection of— 
‘‘(i) a facility owned or operated by a licensee or 
certificate holder of the Commission that is designated 
by the Commission; or 
‘‘(ii) radioactive material or other property owned 
or possessed by a licensee or certificate holder of the 
Commission, or that is being transported to or from 
a facility owned or operated by such a licensee or 
certificate holder, and that has been determined by 
the Commission to be of significance to the common 
defense and security or public health and safety; and 
‘‘(D) are discharging the official duties of the security 
personnel in transferring, receiving, possessing, trans-
porting, or importing the weapons, ammunition, or devices. 
‘‘c. BACKGROUND CHECKS.—A person that receives, possesses, 
transports, imports, or uses a weapon, ammunition, or a device 
under subsection (b) shall be subject to a background check by 
the Attorney General, based on fingerprints and including a back-
ground check under section 103(b) of the Brady Handgun Violence 
Prevention Act (Public Law 103–159; 18 U.S.C. 922 note) to deter-
mine whether the person is prohibited from possessing or receiving 
a firearm under Federal or State law. 
‘‘d. EFFECTIVE DATE.—This section takes effect on the date 
on which guidelines are issued by the Commission, with the 
approval of the Attorney General, to carry out this section.’’. 
SEC. 654. UNAUTHORIZED INTRODUCTION OF DANGEROUS WEAPONS. 
Section 229 of the Atomic Energy Act of 1954 (42 U.S.C. 2278a) 
is amended— 
(1) by striking ‘‘SEC. 229, TRESPASS UPON COMMISSION 
INSTALLATIONS.—’’ and inserting the following: 
‘‘SEC. 229. TRESPASS ON COMMISSION INSTALLATIONS.’’; 
(2) by adjusting the indentations of subsections a., b., and 
c. so as to reflect proper subsection indentations; and 
(3) in subsection a.— 
(A) in the first sentence, by striking ‘‘a. The’’ and 
inserting the following: 
‘‘a.(1) The’’;
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(B) in the second sentence, by striking ‘‘Every’’ and 
inserting the following: 
‘‘(2) Every’’; and 
(C) in paragraph (1) (as designated by subparagraph 
(A))— 
(i) by striking ‘‘or in the custody’’ and inserting 
‘‘in the custody’’; and 
(ii) by inserting ‘‘, or subject to the licensing 
authority of the Commission or certification by the 
Commission under this Act or any other Act’’ before 
the period. 
SEC. 655. SABOTAGE OF NUCLEAR FACILITIES, FUEL, OR DESIGNATED 
MATERIAL. 
(a) IN GENERAL.—Section 236a. of the Atomic Energy Act of 
1954 (42 U.S.C. 2284(a)) is amended— 
(1) in paragraph (2), by striking ‘‘storage facility’’ and 
inserting ‘‘treatment, storage, or disposal facility’’; 
(2) in paragraph (3)— 
(A) by striking ‘‘such a utilization facility’’ and inserting 
‘‘a utilization facility licensed under this Act’’; and 
(B) by striking ‘‘or’’ at the end; 
(3) in paragraph (4)— 
(A) by striking ‘‘facility licensed’’ and inserting ‘‘, ura-
nium conversion, or nuclear fuel fabrication facility licensed 
or certified’’; and 
(B) by striking the comma at the end and inserting 
a semicolon; and 
(4) by inserting after paragraph (4) the following: 
‘‘(5) any production, utilization, waste storage, waste treat-
ment, waste disposal, uranium enrichment, uranium conver-
sion, or nuclear fuel fabrication facility subject to licensing 
or certification under this Act during construction of the facility, 
if the destruction or damage caused or attempted to be caused 
could adversely affect public health and safety during the oper-
ation of the facility; 
‘‘(6) any primary facility or backup facility from which 
a radiological emergency preparedness alert and warning 
system is activated; or 
‘‘(7) any radioactive material or other property subject to 
regulation by the Commission that, before the date of the 
offense, the Commission determines, by order or regulation 
published in the Federal Register, is of significance to the 
public health and safety or to common defense and security;’’. 
(b) CONFORMING AMENDMENT.—Section 236 of the Atomic 
Energy Act of 1954 (42 U.S.C. 2284) is amended by striking ‘‘inten-
tionally and willfully’’ each place it appears and inserting ‘‘know-
ingly’’. 
SEC. 656. SECURE TRANSFER OF NUCLEAR MATERIALS. 
(a) AMENDMENT.—Chapter 14 of the Atomic Energy Act of 
1954 (42 U.S.C. 2201–2210b) (as amended by section 651(d)(1)) 
is amended by adding at the end the following new section: 
‘‘SEC. 170I. SECURE TRANSFER OF NUCLEAR MATERIALS. 
‘‘a. The Commission shall establish a system to ensure that 
materials described in subsection b., when transferred or received 
in the United States by any party pursuant to an import or export