Which regulation primarily cover medical retention standards? AR 40-501 AR 220-1 AR 600-8-1 FM 6-22

The regulation that primarily covers medical retention standards is

AR 40-501

Explanation:

AR 40-501 provides the guidelines for determining the medical fitness of US Armed personnel.  This implies that those who do not meet the requirements are not retained for military services.  The AR = Army Regulation. AR 220-1 deals with the protection of immigrants and refugees.  AR 600-8-1 deals with armed personnel casualties while FM 6-22 is about Army publications.

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