The "MARC 21 encoding to accommodate new RDA elements 046 and 3XX in NARs and SARs" cheat-sheet listed on NACO's landing page saw a slight update on August 1.  The only change I came across is the "Notes" area for the 373 field.  Previously, separate comments were made on personal name and corporate body name application; these are done away with in the current iteration.

<http://www.loc.gov/aba/pcc/naco/>

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Mark K. Ehlert                 Minitex
Coordinator                    University of Minnesota
Digitization, Cataloging &     15 Andersen Library
  Metadata Education (DCME)    222 21st Avenue South
Phone: 612-624-0805            Minneapolis, MN 55455-0439
<http://www.minitex.umn.edu/>