OPTICAL LABORATORY SP · Converted to 91B, effective October 1, 1994
DA Pam 611-21 Table 10-4 maps predecessor MOSC 42E5 to 91B; source successor entries: 91B MEDICAL SPECIALIST; conversion effective 01 Oct 1994.
Sources
- DA Pam 611-21, chapter 10, Table 10-4, Enlisted MOS Conversion Listing (Table 10-4, PDF p. 265)