; and (C) this section. (2) Investment earnings In addition to the deposits under subsection (c), any investment earnings, including interest, credited to amounts held in the Trust Fund are authorized to be used in accordance with subsections (e) and (h). (e) Availability of amounts (1) In general Amounts appropriated to, and deposited in, the Trust Fund, including any investment earnings, including interest, shall be made available to the Tribe by the Secretary beginning on the Enforceability Date and subject to the requirements set forth in this section, except for funds to be made available to the Tribe pursuant to paragraph (2). (2) Use of certain funds Notwithstanding paragraph (1), $20,000,000 of the amounts deposited in the Tule River Tribe Water Development Projects Account shall be made available to conduct technical studies and related investigations regarding the Phase I Reservoir and to establish appropriate Operation Rules. (f) Withdrawals (1) Withdrawals under the American Indian Trust Fund Management Reform Act of 1994 (A) In general The Tribe may withdraw any portion of the amounts in the Trust Fund on approval by the Secretary of a Tribal management plan submitted by the Tribe in accordance with the American Indian Trust Fund Management Reform Act of 1994 ( 25 U.S.C. 4001 et seq. ). (B) Requirements In addition to the requirements under the American Indian Trust Fund Management Reform Act of 1994 ( 25 U.S.C. 4001 et seq. ), the Tribal management plan under this paragraph shall require that the Tribe shall spend all amounts withdrawn from the Trust Fund, and any investment earnings accrued through the investments under the Tribal management plan, in accordance with this Act. (C) Enforcement The Secretary may carry out such judicial and administrative actions as the Secretary determines to be necessary to enforce the Tribal management plan under this paragraph to ensure that amounts withdrawn by the Tribe from the Trust Fund under this paragraph are used in accordance with this Act. (2) Withdrawals