NSP meaning in Military and Defence ?

The National Search and Rescue Plan or National SAR Plan is a policy document of the US government that establishes the responsibilities for search and rescue in the domestic United States, as well as areas where the US has international commitments.

The Plan makes the US Coast Guard responsible for maritime search and rescue, and while inland areas are overseen by the Air Force. Both have Rescue Coordination Centers to coordinate this effort, and also cooperatively operate Joint Rescue Coordination Centers where appropriate. These centers receive Cospas-Sarsat distress alerts sent by the United States Mission Control Center in Suitland, Maryland and are responsible for coordinating the rescue response to the distress. Each service takes a slightly different approach to search and rescue operations.