Army · MOS history

42L4 Administrative Specialist

Converted to 42A, dated October 1, 2007 by the source.

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42AHuman Resources Specialist

Documented history

Administrative Specialist

DA Pam 611-21 Table 10-4 maps predecessor MOSC 42L4 to 42A; source successor entries: 42A HUMAN RESOURCES SPECIALIST; conversion effective 01 Oct 2007.

Source documents (1)

DA Pam 611-21, chapter 10, Table 10-4, Enlisted MOS Conversion Listing
1. Table 10-4, PDF p. 265 · source dated 2025
PDF page 265 (opens in a new tab)

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.