PDDM Archived Transmittal 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.
| Version | Portions Updated |
|---|---|
| Transmittal 16 (2014) | Chapter 10 |
| Transmittal 15 (2014) | Chapters 1, 3, 4, 6, 7, 9, 12, plus formatting changes to remaining chapters |
| Transmittal 14 (2008) | Entire manual, new Chapter 11 & 12 |
| Transmittal 13 (2005) | Entire manual |
| Transmittal 12 (2000) | Chapter 7 and Section 9.4.I |
| Transmittal 11 (1998) | Chapter 8 |
| Transmittal 10 (1998) | Exhibit 9.38 (Standard Drawings), no PDDM Changes |
| Transmittal 9 (1997) | Exhibit 9.38 (Standard Drawings), no PDDM Changes |
| Transmittal 8 (1997) | Exhibit 8.3 |
| Transmittal 7 (1996) | Entire manual |
| Transmittal 6 (1994) | Section 9.6 and Exhibits 9.22A to 37 |
| Transmittal 5 (1994) | Section 7.4.5 and Exhibit 7.10 |
| Transmittal 4 (1994) | Section 9.4.I.2 and Exhibits 9.21 & 31 |
| Transmittal 3 (1993) | Subsection 1.1.C |
| Transmittal 2 (1991) | Section 8.4.H.3 |
| Transmittal 1 (1988) | Entire manual |
See also the current PDDM Revision Log.