; or (II) within such other time period specified and justified by the Secretary in the plan; (B) for each economically important stock of fish for which a stock assessment has not previously been conducted— (i) establish a schedule for conducting an initial stock assessment that is reasonable given the biology and characteristics of the stock; and (ii) subject to the availability of appropriations, require completion of the initial stock assessment not later than 3 years after the date that the plan is published in the Federal Register unless another time period is specified and justified by the Secretary in the plan