For the record, the  440 proposal is well hidden in  MARBI documents:

MARBI Proposal No. 2008-07, "Making the 440 (Series Statement/Added 
Entry--Title) obsolete in the MARC 21 Bibliographic Format," June 6, 

Cheryl Boettcher Tarsala
Adjunct Assistant Professor
LEEP Program, Graduate School of Library and Information Science
University of Illinois

[log in to unmask]
[log in to unmask]

The views expressed here are my own and not those of the University 
of Illinois or GSLIS.