NMFS issues new and revised definitions for certain regulatory terms, and procedural and technical changes to the regulations addressing scientific research activities, exempted fishing, and exempted educational activities under the Magnuson-Stevens Fishery Conservation and Management Act (MSA). This action is necessary to provide better administration of these activities and to revise the regulations consistent with the Magnuson-Stevens Fishery Conservation and Management Reauthorization Act (MSRA). NMFS intends to clarify the regulations, ensure necessary information to complete required analyses is requested and made available, and provide for expedited review of permit applications where possible.