318 
count of each Fund shall be credited to the 
interest account. 
‘‘(C) 
INVESTMENT
OF
PRINCIPAL
AC-
COUNT.— 
‘‘(i) 
INITIAL
INVESTMENT.—Each 
amount deposited in the principal account 
of each Fund shall be invested initially in 
eligible obligations having the shortest ma-
turity then available until the date on 
which the amount is divided into 3 substan-
tially equal portions and those portions are 
invested in eligible obligations that are 
identical (except for transferability) to the 
next-issued publicly issued Treasury obliga-
tions having a 2-year maturity, a 5-year 
maturity, and a 10-year maturity, respec-
tively. 
‘‘(ii) SUBSEQUENT
INVESTMENT.—As 
each 2-year, 5-year, and 10-year eligible ob-
ligation matures, the principal of the ma-
turing eligible obligation shall also be in-
vested initially in the shortest-maturity eli-
gible obligation then available until the 
principal is reinvested substantially equally 
in the eligible obligations that are identical 
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(except for transferability) to the next-issued 
publicly issued Treasury obligations having 
2-year, 5-year, and 10-year maturities. 
‘‘(iii) DISCONTINUATION OF ISSUANCE 
OF OBLIGATIONS.—If the Department of the 
Treasury discontinues issuing to the public 
obligations having 2-year, 5-year, or 10- 
year maturities, the principal of any ma-
turing eligible obligation shall be reinvested 
substantially equally in eligible obligations 
that are identical (except for transfer-
ability) to the next-issued publicly issued 
Treasury obligations of the maturities 
longer than 1 year then available. 
‘‘(D) INVESTMENT OF THE INTEREST AC-
COUNT.— 
‘‘(i) BEFORE FULL CAPITALIZATION.— 
Until the date on which each Fund is fully 
capitalized, amounts in the interest account 
of the Fund shall be invested in eligible obli-
gations that are identical (except for trans-
ferability) to publicly issued Treasury obli-
gations that have maturities that coincide, 
to the maximum extent practicable, with the 
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320 
date on which the Fund is expected to be 
fully capitalized. 
‘‘(ii) AFTER FULL CAPITALIZATION.— 
On and after the date on which each Fund 
is fully capitalized, amounts in the interest 
account of the Fund shall be invested and 
reinvested in eligible obligations having the 
shortest maturity then available until the 
amounts are withdrawn and transferred to 
fund the activities authorized under sub-
section (d)(3). 
‘‘(E) PAR PURCHASE PRICE.—The price to 
be paid for eligible obligations purchased as in-
vestments of the principal account shall not ex-
ceed the par value of the obligations so that the 
amount of the principal account shall be pre-
served in perpetuity. 
‘‘(F) HIGHEST YIELD.—Among eligible obli-
gations having the same maturity and purchase 
price, the obligation to be purchased shall be the 
obligation having the highest yield. 
‘‘(G) HOLDING TO MATURITY.—Eligible ob-
ligations purchased shall generally be held to 
their maturities. 
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321 
‘‘(3) ANNUAL REVIEW OF INVESTMENT ACTIVI-
TIES.—Not less frequently than once each calendar 
year, the Secretary of the Treasury shall review with 
the Cheyenne River Sioux Tribe and the Lower Brule 
Sioux Tribe (referred to in this subsection as the 
‘Tribes’) the results of the investment activities and fi-
nancial status of the Funds during the preceding 12- 
month period. 
‘‘(4) AUDITS.— 
‘‘(A) IN
GENERAL.—The activities of the 
Tribes in carrying out the plans of the Tribes for 
terrestrial wildlife habitat restoration under sec-
tion 602(a) shall be audited as part of the an-
nual audit that the Tribes are required to pre-
pare under the Office of Management and Budg-
et Circular A–133 (or a successor circulation). 
‘‘(B) DETERMINATION
BY
AUDITORS.—An 
auditor that conducts an audit under subpara-
graph (A) shall— 
‘‘(i) determine whether funds received 
by the Tribes under this section during the 
period covered by the audit were used to 
carry out the plan of the appropriate Tribe 
in accordance with this section; and 
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‘‘(ii) include the determination under 
clause (i) in the written findings of the 
audit. 
‘‘(5) MODIFICATION OF INVESTMENT REQUIRE-
MENTS.— 
‘‘(A) IN GENERAL.—If the Secretary of the 
Treasury determines that meeting the require-
ments under paragraph (2) with respect to the 
investment of a Fund is not practicable, or 
would result in adverse consequences for the 
Fund, the Secretary shall modify the require-
ments, as the Secretary determines to be nec-
essary. 
‘‘(B) CONSULTATION.—Before modifying a 
requirement under subparagraph (A), the Sec-
retary of the Treasury shall consult with the 
Tribes regarding the proposed modification.’’; 
and 
(2) by striking subsection (f) and inserting the 
following: 
‘‘(f) ADMINISTRATIVE EXPENSES.—There are author-
ized to be appropriated to the Secretary of the Treasury 
to pay expenses associated with investing the Funds and 
auditing the uses of amounts withdrawn from the Funds— 
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