PDDM Archived Transmittals Letters

The PDDM was first published in 1988 in English units. It was re-released in 1996 as a Metric document. Beginning in 2005 the document was published with dual units.

Year Transmittal Portions Updated
2008 14 Entire manual
2005 13 Entire manual
2000 12 Chapter 7 and Section 9.4.I
1998 11 Chapter 8
10 Exhibit 9.38 (Standard Drawings), no PDDM Changes
1997 9 Exhibit 9.38 (Standard Drawings), no PDDM Changes
8 Exhibit 8.3
1996 7 Entire manual
1994 6 Section 9.6 and Exhibits 9.22A to 37
5 Section 7.4.5 and Exhibit 7.10
4 Section 9.4.I.2 and Exhibits 9.21 & 31
1993 3 Subsection 1.1.C
1991 2 Section 8.4.H.3
1988 1 Entire manual

See also the current PDDM Revision Log.