I 
109TH CONGRESS 
2D SESSION 
H. R. 6126 
To suspend temporarily the duty on certain structures, parts, and components 
for use in an isotopic separation facility. 
IN THE HOUSE OF REPRESENTATIVES 
SEPTEMBER 20, 2006 
Mr. PEARCE introduced the following bill; which was referred to the 
Committee on Ways and Means 
A BILL 
To suspend temporarily the duty on certain structures, parts, 
and components for use in an isotopic separation facility. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. CERTAIN STRUCTURES, PARTS, AND COMPO-
NENTS FOR USE IN AN ISOTOPIC SEPARA-
TION FACILITY. 
(a) IN GENERAL.—Subject to the National Enrich-
ment Facility in southern New Mexico obtaining a license 
to operate an isotopic separation facility from the Nuclear 
Regulatory Commission, the Secretary of the Treasury is 
authorized and directed to admit free of duty after Decem-
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ber 31, 2006, the following articles, provided for in head-
ing 8401.20.00 of the Harmonized Tariff Schedule of the 
United States, for the use in the construction of such en-
richment facility: 
(1) Centrifuge medium frequency drive supply, 
including medium frequency centrifuge drive con-
verters, distribution and protection systems (isotopic 
separation equipment). 
(2) Centrifuge supply and support systems, in-
cluding centrifuge monitoring system, proprietary 
centrifuge protection system (isotopic separation 
equipment). 
(3) Centrifuge plant control system, including 
proprietary software and hardware integration for 
core plant control systems (isotopic separation 
equipment). 
(4) Cascade supply equipment (isotopic separa-
tion equipment) consisting of— 
(A) centrifuge components, including indi-
vidual component parts for the centrifuges to be 
supplied for assembly at the National Enrich-
ment Facility; 
(B) cascade header pipe-work modules 
(CHP), including approximately 2,000 modules 
specially designed to allow the correct distribu-
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tion of the process gas into the cascade and 
made of a special grade aluminum; and 
(C) cascade valve frames, including ap-
proximately 50 manifold units to be the inter-
face from the main process plant to the cascade 
and specially designed to enable optimum oper-
ation of the cascades. 
(5) Centrifuge process gas equipment (isotopic 
separation equipment) consisting of— 
(A) centrifuge process gas aluminum pipe 
work of special grade aluminum tubing; 
(B) centrifuge process gas valves, specially 
designed for optimum flow control of process 
gas; and 
(C) centrifuge process gas delivery pump 
sets. 
(b) RELIQUIDATION.—If the liquidation of an entry 
of any article described in subsection (a) has become final 
before December 31, 2011, the entry shall, notwith-
standing any other provision of law, be reliquidated on De-
cember 31, 2011, in accordance with the provisions of this 
section and the appropriate refund of duty made at the 
time of such reliquidation. 
Æ 
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