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TEST SAMPLEIn the event of an emergency, NAS Patuxent River may restrict base access based on Personnel Category (CAT) and mission needs. These restrictions aid in preserving public safety as well as emergency response. The CATs encompass all employees and residents of NAS Patuxent River. 

Personnel who have questions about their personnel category should talk to their supervisor/chain of command. 


 Mission Essential Personnel (MEP) including U.S. military personnel, emergency essential Navy/DoD Civilians, and Navy/DoD contractors (or subcontractors) supporting the National Military Strategy. Three sub categories:

  • CAT-1A: Critical operations personnel required to perform Mission Essential Functions (MEFs) under all circumstances 24-hours a day and 7 days a week without interruption for up to 12 hours at which time the MEF may be transferred to an alternate site. (only the specific individuals who are performing tasks that may not be interrupted due to their national significance and importance to ongoing combat operations or supporting command and control operations). 
  • CAT-1B: Essential operations personnel who are able to temporarily interrupt performance of essential operations and relocate to an alternate site to resume MEFs or essential operations.
  • CAT-1C: Essential services personnel who provide essential services in support of MEFs or essential operations either from their primary worksite or relocation site (personnel providing essential services in support of MEFs include facilities management, public works/engineering, or other support services). 

CAT-2:​ Other U.S. personnel, such as:
  • U.S. military family members living on & off base
  • U.S. military personnel, Navy civilian employees, and other persons
  • Navy contractor (and subcontractor) employees other than those performing essential Navy services
  • Employees of other U.S. Government agencies
  • Other U.S. Government contractor (and subcontractor) employees
(NOTE: CAT-2 applies to the majority of personnel)  

 Other personnel supporting U.S. operations, including:
  • Non-U.S. citizens employed by the Navy or a Navy contractor (or subcontractor) if not in CAT-1 or CAT-2
  • Foreign military personnel employed by the host nation government or by contractors of the host nation government.

CAT-4: Allied/Coalition Personnel, including:
  • Host nation and third country nationals assisting U.S. operations per international agreement

CAT-5: Essential and/or emergency responders who are U.S. military personnel, DoD civilians, and/or contractor personnel able to conduct safe and effective emergency operations response appropriate to their level of training, including:
  • First Responders, including Fire & Emergency Services, HAZMAT Response Teams, Naval Security Forces (NSF), EOD Teams, Emergency Response Teams (ERTs), OHS Spill Response
  • Emergency Responders, including Emergency Management (EM), Emergency Operations Center (EOC) staff, Dispatch staff, Medical Treatment Facility (MTF)/Healthcare Providers, Public Health Emergency Officers (PHEO), Mass Care, Mortuary Affairs, designated Safety personnel, Industrial Hygiene (IH) personnel, Public Works, Public Affairs (PAO), and Supply/logistics personnel
(First/Emergency Responders, including Public Works personnel directly supporting a preplanned response and recovery effort)

REFERENCES:​     (a) OPNAVINST 3440. 17A
                          (b) CNICINST 3440. 17 

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