For each of the fiscal years 1991, 1992, 1993, 1994, and 1995, $6,000,000 of amounts in the Fund shall be available to carry out the regional research program in paragraph (8), such amounts to be available in equal amounts for the regional research program in each region; except that if the agencies represented on the Interagency Committee determine that regional research needs exist which cannot be addressed within such funding limits, such agencies may use their authority under paragraph (10) to make additional grants to meet such needs. For the purposes of this paragraph, the research program carried out by the Prince William Sound Oil Spill Recovery Institute established under section
2731 of this title, shall not be eligible to receive grants under this paragraph until the authorization for funding under section
2736
(b) of this title expires.