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

Collection-level records

(MSS n/a, refers out to DACS)

B1.2. A collection-level record may serve... 

1. (B) Delete extraneous space between "DCRM" and full stop. (S)(G)(M)(B3)(C)

B1.3. The following guidelines are based... 

1. (B)(S) Catalogers wishing to contribute collection‐level records as part of the Program for Cooperative Cataloging will need to consult the relevant instructions in the PCC RDA BIBCO Standard Record (BSR) Metadata Application ProfileBIBCO Core Record Standards. (C)(M)(B4)

B4. ... Leader and directory 

1. (B)(S) Change heading to just "Leader" (not "and directory," which isn't covered here). (G)(C)(B4)
2. (B)(S) Leader 07: Bibliographic level. Use the value c (collection-level) or d (subunit) as appropriate. (G)(C)(M)(B4)

B4. ... Control field: 008 

1. (B)(S) 06: Type of date. Coding choices are: i (inclusive dates of collection), or k (range of years of bulk of collection), and m (multiple dates). (G)(C)(M)(B4)
2. (B)(S) 07-10: Date 1. Give the only date, earliest date, or single earliest bulk date, from the 260 field. (G)(C; note: did not add comma before "from the 260 field" to parallel how done in Date 2)(M)(B4; note: also removed comma before "from the 260 field")
3. (B)(S) 11-14: Date 2. Give the only date, latest date, or single latest bulk date, from the 260 field. Enter 9999 in 008/11-14 if the collection is open or not yet complete and use m in 008/06. (G)(C; note: G actually has no comma before "from the 260 field, and that seems grammatically correct, so we did not add one either)(B4: note: did not add comma before "from the 260 field")

B4. ... 1XX field: Main entry 

1. (B) Change text of footnote to reflect online version of Relator Terms: "[23] For more information, see the RBMS guidelines in 'Relator Terms for Rare Book, Manuscript, and Special Collections Cataloguing' RBMS Controlled Vocabularies: Relator Terms for Rare Book and Special Collections Cataloging." (S)(B3, but inadvertently did not change spelling of "Cataloguing")(C, G: not done; instead, truncated this reference to "RBMS Controlled Vocabularies" because the relationship designators portion of the CV site seems to function more as a subsection of the larger CV. Citing the two as separate resources would mean having two entries that begin "RBMS Controlled Vocabularies" in the "List of Works Cited", which in turn would mean including the long subtitle whenever citing one or the other in the text in order to differentiate them. This seems excessive. Note: the BSC decision to rename the online resource (doing away with "Relator Terms") entails the following two additional changes): (M did this too)(B4; also changed to reflect G's edit)
1. 1XX, 2nd par.: change "relator term" to "relationship designator" (C)(G)(M)(B4)
2. 1XX footnote: change "Relator Terms" to "Relationship Designators" (C, G: not done because no longer citing subtitle)(M as C, G)(B4: as C,G,M)

B4. ... 245 field: Title statement

1. (B)  1st bullet: Add hyphen to form "previously-named collections"(M)(B3)
2. (B) 2nd bullet: Add comma after "collector"(M)(B3); 5th bullet: Delete "s" in "genre/forms" to make singular "genre/form" (S)(G)(M)(B3)(C)

B4. ... 260 field:

1. (B)(S) Added specific instruction for recording bulk dates as a final paragraph: Optionally, indicate dates or date spans most heavily represented as a bulk date. (G)(C)(M)(B4)
2. (B)(S) Moved bulk date example to follow the new bulk date instruction. (G)(C)(M)(B4)

B4. ... 505 field: Formatted contents note 

1. (B) 1st sentence: "Formatted contents notes provide a an ISBD-structured method of recording item-level information." Last sentence: "... prefer the more narrative 520 summary note to the 505 note." (S)(G)(M)(B3)(C)

B4. ... 541 field: Immediate source of acquisition

1. (B) 2nd example: Formatted incorrectly; should be: "$3 Master copy $c Gift; $a Mrs. James Hickey; $d received: 5/22/1989" (S)(G)(B3)(C n/a) (M n/a) lso, consider adding indicators to all examples; cf. S(B4; added indicators)

B4. ... 655 fields: Genre/form headings

1. (B) Edit rule and delete footnote to reflect online versions of controlled vocabularies (cf. 7A1.4): "Assign as applicable. Prefer terms the terminology found in the official thesauri maintained controlled vocabularies issued by the RBMS Bibliographic Standards Committee[24] ; terms from other authorized thesauri (e.g., the Art and Architecture Thesaurus Art & Architecture Thesaurus Online) may also be used as appropriate. As with subject headings, assign headings as specifically and numerously as the collection and institutional policy warrant." (S)(G n/a)(M; the RBMS genre terms are mostly n/a but have kept the allusion in text and have added Ethnographic Thesaurus)(B3)(C: instead, changed phrase to directly cite RBMS Controlled Vocabularies and Library of Congress Genre/Form Terms for Library and Archival Materials; also changed the 2nd instance of "thesauri" to "vocabularies)(M did this too and changed "headings" in last sentence to "terms".)(B4: changed phrasing as follows: "Prefer the terminology used in RBMS Controlled Vocabularies or Library of Congress Genre/Form Terms for Library and Archival Materials. Terms from other authorized vocabularies (e.g., Art & Architecture Thesaurus Online) may also be used. As with subject headings, assign terms as specifically and numerously as the collection and institutional policy warrant.")
1. [24]These thesauri include: Binding Terms; Genre Terms; Paper Terms; Printing and Publishing Evidence; Provenance Evidence; and Type Evidence. (S)(G n/a)(M)(B3)(C)
2. (B4) Delete subdivisions on 655 examples per CVEG http://rbms.info/cv-comments/2019/01/09/subdivision-policy/

B4. ... 7XX fields: Added entries and linking entries

1. (B)(S) Heading: "7xx fields: Added entries and linking entries" (G)(M)(B4)
2. (B)(S) End of last sentence: "make an added a linking entry for the larger collection using field 773 (G)(M)(B4)

B5.1. Lengthy descriptions divided into more than one record 

1. (B) 245: "Indicate in subfield $n or in subfield $p, as appropriate, which part of the collection is being represented in the record." (S)(G n/a)(M)(B3)(C)

B5.2. Considerations when adding to collections 

1. (B3)(S) Begin bullets with lower case letter (G)(C)(M)(B4)