Between March 1, 1999
, and March 31, 1999
, the Secretary shall, on the basis of the research conducted before March 1, 1999
, under section 1414a(a) of this title
, information obtained under the International Dolphin Conservation Program, and any other relevant information, make an initial finding regarding whether the intentional deployment on or encirclement of dolphins with purse seine nets is having a significant adverse impact on any depleted dolphin stock in the eastern tropical Pacific Ocean. The initial finding shall be published immediately in the Federal Register and shall become effective upon a subsequent date determined by the Secretary.