To provide for the advancement of Rear Admiral Emory S. Land, Construction Corps, United States Navy, retired, to the rank of vice admiral (H.R. 7576). Mr. Vinson of Georgia. (OCLC #925380358)

RDA A.11.5 on Titles Following a Name or Used Alone in Place of a Name has a section on Civil and Military Titles which says not to capitalize a civil or military title.

RDA A.11.3 on Titles Preceding the Name says to capitalize any title or term of honour or address that immediately precedes a personal name.

Both forms appear in this title:

245 10 ǂa To provide for the advancement of Rear Admiral 
    Emory S. Land, Construction Corps, United States Navy, retired,
    to the rank of vice admiral (H.R. 7576).