In the case of Bureau elementary or secondary education functions which have not previously been operated by a tribe or tribal organization under contract, grant, or agreement with the Bureau, the direct cost base for the initial year shall be the projected aggregate direct cost program funding for all Bureau elementary and secondary functions to be operated by the tribe or tribal organization during that fiscal year.
The term “maximum base rate” means 50 percent.
The term “minimum base rate” means 11 percent.
The term “standard direct cost base” means $600,000.
The term “tribal elementary or secondary educational programs” means all Bureau elementary and secondary functions, together with any other Bureau programs or portions of programs (excluding funds for social services that are appropriated to agencies other than the Bureau and are funded through the Bureau, funds for major subcontracts, construction, and other major capital expenditures, and unexpended funds carried over from prior years) which share common administrative cost functions, that are operated directly by a tribe or tribal organization under a contract, grant, or agreement with the Bureau.
Amounts appropriated to fund the grants provided under this section shall be in addition to, and shall not reduce, the amounts appropriated for the program being administered by the contract or grant school.
The amount of the grant provided to each tribe or tribal organization under this section for each fiscal year shall be determined by applying the administrative cost percentage rate of the tribe or tribal organization to the aggregate of the Bureau elementary and secondary functions operated by the tribe or tribal organization for which funds are received from or through the Bureau.
The administrative cost percentage rate shall be determined to the 1⁄100 of a decimal point.
Funds received by a tribe or contract or grant school as grants under this section for tribal elementary or secondary educational programs may be combined by the tribe or contract or grant school into a single administrative cost account without the necessity of maintaining separate funding source accounting.
Indirect cost funds for programs at the school which share common administrative services with tribal elementary or secondary educational programs may be included in the administrative cost account described in paragraph (1).
Funds received as grants under this section with respect to tribal elementary or secondary education programs shall remain available to the contract or grant school without fiscal year limitation and without diminishing the amount of any grants otherwise payable to the school under this section for any fiscal year beginning after the fiscal year for which the grant is provided.
Funds received as grants under this section for Bureau-funded programs operated by a tribe or tribal organization under a contract or agreement shall not be taken into consideration for purposes of indirect cost underrecovery and overrecovery determinations by any Federal agency for any other funds, from whatever source derived.
In carrying out the studies required under this subsection, the Director shall obtain the input of, and afford an opportunity to participate to, the Inspector General of the Department of the Interior.
Determinations described in paragraph (2)(C) shall be based on what is practicable at each location studied, given prudent management practice, irrespective of whether required administrative services were actually or fully delivered at these sites, or whether other services were delivered instead, during the period of the study.
Upon completion of the studies conducted under paragraph (1), the Director shall submit to Congress a report on the findings of the studies, together with determinations based upon such studies that would affect the definitions set forth under subsection (e) that are used in the formula set forth in subsection (c).
The Secretary shall include in the Bureau’s justification for each appropriations request beginning in the first fiscal year after the completion of the studies conducted under paragraph (1), a projection of the overall costs associated with the formula set forth in subsection (c) for all tribal elementary or secondary education programs which the Secretary expects to be funded in the fiscal year for which the appropriations are sought.
For purposes of this subsection, the size of tribal elementary or secondary educational programs is determined by the aggregate direct cost program funding level for all Bureau-funded programs which share common administrative cost functions.
There are authorized to be appropriated to carry out this section such sums as may be necessary.
If the total amount of funds necessary to provide grants to tribes and tribal organizations in the amounts determined under subsection (c) for a fiscal year exceeds the amount of funds appropriated to carry out this section for such fiscal year, the Secretary shall reduce the amount of each grant determined under subsection (c) for such fiscal year by an amount that bears the same relationship to such excess as the amount of such grants determined under subsection (c) bears to the total of all grants determined under subsection (c) section  for all tribes and tribal organizations for such fiscal year.
Beginning with President’s  annual budget request under section 1105 of title 31 for fiscal year 2002, and with respect to each succeeding budget request, at the discretion of the Secretary, the Secretary shall submit to the appropriate committees of Congress information and funding requests for the full funding of administrative costs grants required to be paid under this section.
With respect to a budget request under paragraph (1), the amount required to provide full funding for an administrative cost grant for each tribe or tribal organization expected to begin operation of a Bureau-funded school as contract or grant school in the academic year funded by such annual budget request, the amount so required shall not be less than 10 percent of the amount required for subparagraph (B).
With respect to a budget request under paragraph (1), the amount required to provide full funding for an administrative cost grant for each tribe or tribal organization operating a contract or grant school at the time the annual budget request is submitted, which amount shall include the amount of funds required to provide full funding for an administrative cost grant for each tribe or tribal organization which began operation of a contract or grant school with administrative cost grant funds supplied from the amount described in subparagraph (A).