NMFS announces that the spiny dogfish commercial quota available to the coastal states from Maine through Florida for the second semi-annual quota period, November 1, 2011-April 30, 2012, has been harvested. Therefore, effective 0001 hours, January 13, 2012, federally permitted spiny dogfish vessels may not fish for, possess, transfer, or land spiny dogfish until May 1, 2012, when the 2012 spiny dogfish fishing year begins. Regulations governing the spiny dogfish fishery require publication of this notification to advise the coastal states from Maine through Florida that the quota has been harvested and to advise vessel permit holders and dealer permit holders that no Federal commercial quota is available for landing spiny dogfish in these states. This action is necessary to prevent the fishery from exceeding its Period 2 quota and to allow for effective management of this stock.