Change in DDC segmentation policy on full DDC numbers

Background

•	Library and Archives Canada (LAC) and Library of Congress (LC) have traditionally followed the same segmentation policy regarding segmentation marks in full DDC numbers
•	Library of Congress implemented a new policy Sept. 5, 2005

Old Policy

•	First segmentation mark placed following the number found in the abridged edition (14 ed.) but preceding the allowable standard subdivisions from abridged Table 1
•	Second segmentation mark was placed before a standard subdivision but after the abridged part of the subdivision

New Policy

•	One segmentation mark is placed following the number found in the abridged edition (14 ed.) including the allowable standard subdivisions from abridged Table 1

Implementation at LAC

•	In consideration that WebDewey is the only official source of segmentation, LAC has decided to implement after the February "refresh" of that database
•	LAC will implement the new policy March 1, 2006
•	Implementation of the policy will be evident by full DDC numbers having only one segmentation mark