NMFS delays the effective date of a final rule published January 11, 2000, from March 15, 2000, until March 27, 2000. The final rule was to have been effective February 10, 2000; however, its effectiveness was previously delayed until March 15, 2000. The final rule will implement approved management measures for the spiny dogfish fishery, as contained in the Spiny Dogfish Fishery Management Plan (FMP). This action is being taken in order to provide the Mid-Atlantic and New England Fishery Management Councils (Councils) with the opportunity to come to an agreement on how to proceed with implementation of the FMP. If the Councils have not reached an agreement by March 27, 2000, NMFS will assess the situation to determine the appropriate course of action to take at that time.