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Military Health System

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Health Readiness Support Division

The Defense Health Agency Health Readiness Support Division provides product development and deployment health execution guidance in order to optimize Individual Medical Readiness (IMR) and keep a healthy and fit fighting force which is medically ready to deploy at any time.

Individual Medical Readiness

IMR is a means to assess an individual service member’s, or larger cohort’s, readiness level against established metrics applied to key elements of health and fitness to determine medical deployability in support of contingency operations.

IMR consists of core medical requirements that service members must maintain at all times. Commanders and senior leaders constantly monitor IMR status to ensure a maximum state of mission readiness.

IMR Resource

IMR and Medical Profile System Guidance: To access these documents, visit the Inside DHA (Sharepoint) home page (CAC authentication required) and find "IMR and Medical Profile System Guidance" under "Resources" in the menu on the right-hand side of the page.

Reserve Health Readiness Program

The Reserve Health Readiness Program is a DOD program that helps supplement the Reserve component’s readiness mission and satisfy key deployment requirements by providing medical and dental services to all Reserve component forces through IMR services, PHA, and Post-Deployment Health Reassessment (PDHRA). 

Periodic Health Assessments

The PHA is the key process for assessment and maintenance of the currency of IMR using DD Form 3024. The PHA is used to:

  • Identify duty limiting and deployment limiting conditions
  • Fulfill the required annual Mental Health Assessment
  • Monitor and guide military personnel in the area of preventive health screening and education
  • Screen for currency of occupational medical examinations and other health assessments

Deployment Related Health Assessments

The Deployment Related Health Assessments (DRHAs) are used to screen service members at critical milestones in the deployment process. They provide an opportunity to identify health concerns before and after deployment and to facilitate appropriate care.

Deployment Related Health Assessments include:

  • Pre-Deployment Health Assessment - required within 120 days of deployment. 
  • Post-Deployment Health Assessment - required +/-30 days of redeployment.
  • Post-Deployment Health Reassessment - required 90-180 days after redeployment.  

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Report of the Department of Defense Task Force on Mental Heath


Defense Health Board: Report of the Department of Defense Task Force on Mental Heath

ASD (HA) Memo "TBI Questions for the Post Deployment Health Assessment"


Policy Guidance for Deployment-Limiting Psychiatric Conditions and Medications


This policy provides guidance on deployment and continued service in a deployed environment for military personnel who experience psychiatric disorders and/or who are prescribed psychotropic medication.

Joint Publication 4-02, Health Service Support


Policy for Pre- and Post-deployment Serum Collection


The reference, responding to the 2005 National Defense Authorization Act (Section 733), established interim standards for the collection of pre-and postdeployment blood specimens. It also authorized the Joint Medical Readiness Oversight Committee (JMROC) to recommend changes to the interim standards.

Periodic Health Assessment Policy for Active Duty and Selected Reserve Members


This policy explains the requirement to perform annual Periodic Health Assessments (PHAs) for all members of the Active Duty and the Selected Reserve (SELRES) members.

Policy Guidance for Medical Deferral Pending Deployment to Theaters of Operation


Policy Memorandum for Name Change of the DoD Automated Health Assessment Tool from HEAR to HART


Post-Deployment Health Reassessment


Policy for Department of Defense Deployment Health Quality Assurance Program


DoD Directive 6490.5 on Combat Stress Control Programs


Updated Policy for Pre and Post-Deployment Health Assessments and Blood Samples - This supercedes policy 99-002


Establishment of DoD Centers for Deployment Health


DoD Instruction 6000.11, Patient Movement (PM)

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Last Updated: April 14, 2023
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