Addenda to the 2004 Edition of the Code are issued in the form of replacement pages. Revisions, addtions, or deletions are incorporated directly into the affected pages. It is advisable, however, that all replaced pages be retained for reference.Replace or insert the pages listed. Changes given below are identified on the pages by a margin note, A06, placed next to the affected area. Revisions to the 2004 Edition are indicated by 04 and revisions in the 2005 Addenda are indicated by A05. For the listing below, the Page references the affected area. A margin note, A06, placed next to the heading indicates Location. Revisions are listed under Change.