The final series, Standard Practice Guide, 1947-2012 (6.7 linear feet) is divided into two subseries, General, 1947-1994 (0.7 linear feet) which contains publicity materials for the SPG Online, copies of the original series of Standard Practice Bulletins that formed the basis of the original Standard Practice Guide, and a complete SPG binder from 1995. The files are arranged alphabetically. The second subseries, Amendments to SPG Provisions, 1968-2012 (6 linear feet) is arranged by SPG number. Each folder consists of the amendment history of a given policy provision. Materials in this series have been digitized and placed for safekeeping in Deep Blue, but are restricted. The digitized files exactly correspond to the materials in Boxes 13-18 and comprise about 1205 items (351.7 MB preprocessed).