Final answer:
The BUMED Manual 1300.2B requires procedures for conducting Medical Assignment Screening (MAS) for Navy Service members.
Step-by-step explanation:
The publication that requires BUMED to prescribe procedures to conduct Medical Assignment Screening (MAS) for Navy Service members is the Navy Bureau of Medicine and Surgery (BUMED) Manual. Specifically, the BUMED Manual 1300.2B provides guidance on the procedures and requirements for conducting MAS.