Army · MOS history
Converted to 31R, dated April 1, 1995 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: 25Q1 Multichannel Transmission Systems Operator- Maintainer, itself later retired
MSE Xmsn System OP
DA Pam 611-21 Table 10-4 maps predecessor MOSC 31D3 to 31R; source successor entries: 31R MULTICHANNEL TRANSMISSION SYSTEMS OPERATOR-MAINTAINER; conversion effective 01 Apr 1995.
1. Table 10-4, PDF p. 253 · source dated 2025
PDF page 253 (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.