Each operator of a vessel described in Sec. 138.15 must establish evidence of financial responsibility acceptable to the Director, NPFC, in an amount equal to or greater than the total applicable amounts determined under Sec. 138.80(f), by not later than January 15, 2009. In the event an applicable amount determined under Sec. 138.80(f) is thereafter amended by regulation, each operator of a vessel described in Sec. 138.15 must establish evidence of financial responsibility acceptable to the Director, NPFC, in an amount equal to or greater than the amended total applicable amount, by not later than 90 days after the effective date of the final rule, unless another date is required by statute or specified in the amending regulation.