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News - 2011
IA Business Rules Released: OSA Replacing GSA for Enlisted Sailors 

From Navy Personnel Command Public Affairs Office

MILLINGTON, Tenn. – A series of messages released Oct. 7 outlines new procedures for Individual Augmentation assignments.

NAVADMINs 332/10, 333/10 and 334/10 establish the new business rules for Individual Augmentation Manpower Management (IAMM), Global War on Terrorism Support Assignments (GSA), and Overseas Contingency Operation Support Assignments (OSA) respectively.

U.S. Fleet Forces (USFF) and Navy Personnel Command (NPC) conducted a review of the GSA program to find a solution that addresses Fleet concerns and feedback from Individual Augmentee (IA) Sailors and their families.  Based on this review, the Navy is implementing a new program, OSA, which was announced in NAVADMIN 171/10.  This program preserves the best elements of GSA, addresses Fleet and command concerns and provides a clearly defined support structure for IA Sailors and their families.

The OSA process replaces GSA detailing for enlisted Sailors and becomes effective Nov. 1.  GSA detailing continues for officers.  The new OSA process preserves career choices, volunteerism, and predictability that GSA now provides.  It also eliminates entitlement inequities, improves Fleet readiness, and solidifies IA Sailor and family support.  

OSA business rules highlights include:

  • Enlisted Sailors can apply for an IA assignment through the Career Management System/Interactive Detailing by selecting “OSA PREFERENCE”12-to-nine months  prior to their projected rotation date (PRD) and prior to negotiating permanent change of station (PCS) orders. 
  • Sailors will be able to communicate directly with a dedicated OSA detailing team to discuss OSA opportunities and details regarding specific assignments. 
  • OSA orders are executed at the end of the Sailor’s normal PCS tour.   However, Sailors on OSA assignments will be on temporary additional duty (TEMADD) from the existing parent command, which will maintain the traditional command relationship for Sailor and family support.
  • If a Sailor elects and is accepted for OSA, they will be administratively extended at their present duty station for the period of the IA assignment plus an additional 60 days for rest, relaxation and to prepare for their next PCS move. 
  • Standard relief requisition procedures remain in effect to generate a requisition for the OSA Sailor at their original PRD.
  • Although the Sailor remains assigned to the parent command, procedures are in place to adjust personnel accounting to count the Sailor as deployed on OSA orders, vice as onboard and filling a billet.
  • Sailors who volunteer for an OSA assignment will have choice of coast detailing for their follow-on PCS orders negotiation.
  • Sailors may request intermediate temporary duty (ITDY) orders to facilitate relocation of their family while serving on the OSA tour.

The new business rules for IAMM, per NAVADMIN 332/10, include:

  • Sailors will be exempt from a second IA tour for a three year period upon successful completion of any IA tour.
  • Sailors must have an end of active obligated service (EAOS) at least 90 days beyond the estimated return from the IA.
  • Sailors determined to be high year tenure may volunteer for IA orders provided that a minimum of four months transition exists between return and mandatory separation date.
  • Sailors who have submitted and been approved for retirement may volunteer for IA orders provided that a minimum of five months transition exists between return and retirement date.
  • Sailors must be E-3 or above at the time of administrative screening.

The changes to the updated GSA business rules are minor with the highlight that officers who complete a GSA tour will be exempt from a second IA tour for a three year period.

To read the messages or for more information, visit Navy Personnel Command’s website at or U.S. Fleet Forces Command’s Navy Individual Augmentee website at


NAVY PERSONNEL COMMAND: 5720 Integrity Drive, Millington TN 38055-0000 
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