Army · MOS history
Converted to 12B, dated October 1, 1996 by the source.
Historical steps
The source names a code the branch later retired, or whose reviewed record is historical. Its story continues on that code's own page.
Recorded successor: 21B1 Combat Engineer, itself later retired
Eng Trk Veh Crmn
DA Pam 611-21 Table 10-4 maps predecessor MOSC 12F3 to 12B; source successor entries: 12B COMBAT ENGINEER; conversion effective 01 Oct 1996.
1. Table 10-4, PDF p. 224 · source dated 2025
PDF page 224 (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.