NMFS is broadening the scope of individuals and entities approved to complete vessel fish hold capacity certifications for vessels issued Tier 1 and 2 limited access Atlantic mackerel permits under the Atlantic Mackerel, Squid, and Butterfish Fishery Management Plan (MSB FMP). In addition, this rule extends the deadline to submit vessel fish hold capacity certifications from December 31, 2012, to December 31, 2013 or during a vessel replacement transaction, whichever comes first.