Too funny, the regs are Greek to me, i wouldn't know where to put it. Maybe as pictured in post #9?
b. Provisions for Wear. All eligible officers may wear the Command-at-Sea and Command Ashore/Project Manager insignia. Flag officers are only authorized to wear in the post-tour position described below. The miniature Command insignia is worn with all uniforms except Full Dress uniforms.
(2) Post Tour
(a) Optional simultaneous wear of Post-Tour Command at Sea and Command Ashore/Project Manager insignia is authorized when wearing Working Uniforms (NWUs, Navy Coveralls and Flight Suits), Service Uniforms and Service Dress Uniforms. When worn simultaneously, the Command at Sea Insignia will be placed inboard toward the center of the chest denoting primary placement. The Command Ashore/Project manager Insignia will be worn adjacent and to the wearer’s left of the Command at Sea Insignia, with one inch between the facing outer edges of both insignias. If you are also an incumbent, the post-tour Command Insignia of the same command category will not be worn.
(Center the insignia (one or both post tour insignias) on the left breast, 1/4 inch below the top of the pocket/flap. When wearing two qualification breast insignia (primary above the Service Tape and secondary below the Service Tape), center the Command Insignia 1/4 inch below the secondary insignia, or on uniforms with pocket flaps, 1/4 inch below the flap. When wearing Command Insignia and an identification badge, men center the badge 1/4 inch below the command Insignia, and women center the badge 1/4 inch above the left pocket, ribbons or primary insignia.