Key:

• Rule numbering and titles taken from DCRM(B) first printing 
• Module code in parentheses before rule number indicates location of original text to be changed; module code after description of needed change indicates that the change has been made in that module; module code after plus "n/a" means change has been verified as not applicable to that module
• Because subsequent printings are based on an entirely new text supplied by BSC but Cataloger's Desktop is updated manually, there is occasionally a discrepancy between print and online that is to be noted and CD to be given the correction
• Additions to text are shown underlined; deletions are shown struck through
• Codes:
• {B, B1}, B2, B3, B4 = Books, first through fourth printings; "not done" indicates that the intended change was inadvertently not made
• C = Cartographic
• G = Graphics
• M = Music
• MSS = Manuscripts
• S = Serials
• CD = Cataloger's Desktop

Series 

(MSS n/a)

6C2. Optionally,...

1. (B3) Bold rule number (B4)

6G2. If there is series numbering appears without a but no series title

1. (B)(S 6G1.3): "If there is series numbering appears without a but no series title..." (G)(C)(M) (B4)

6G3.2. If the series numbering...  

1. (B) "... all, more than one, or none of the parallel series titles ..." (S)(M)(Inadvertently missed in B3)(C, G: change not made because don't think it is correct; not all of the series titles are parallel titles; only the ones after the = sign are called parallel titles)(M, not changed)(B4, not changed)