Studies to be completed not later than October 1, 1988, to (A) identify effects of any such projects on tidal ranges and resulting impacts to beaches and estuarine areas, and (B) identify further studies which would be needed to meet the requirements of paragraph (2) of this subsection; and

Studies to be completed not later than October 1, 1990, to (A) determine further environmental, social, economic, and institutional impacts of such tidal power development, and (B) determine what measures could be taken in Canada and the United States to offset or minimize any adverse impacts of such development on the United States.