In the Canadian federal election of January 23, 2006, the Liberal Party of Canada / Parti libéral du Canada relinquished the power it had held since 1993, at first under Jean Chrétien and latterly under Paul Martin. The Conservative Party of Canada / Parti conservateur du Canada won a plurality of seats, and now leads a minority government; the 22nd Prime Minister of Canada, sworn in on February 6, 2006, is Stephen Harper, leader of the Conservatives since March 2004. A new Canadian Subject Heading ("Canada--Politics and government--2006-") was created in February 2006 by Library and Archives Canada for application to works on the new government. The former heading "Canada--Politics and government--1993-" has been replaced by "Canada--Politics and government--1993-2006." The Dewey editors have mapped the DDC numbers 320.971090511 and 971.073 to "Canada--Politics and government--2006-," and 320.97109049, 320.971090511, 971.0648, 971.071, and 971.072 to "Canada--Politics and government--1993-2006." In the interests of timeliness, these numbers have been added to our January 2006 list of CSH/DDC mappings. The numbers in 320 Political science are formed by adding T2—71 Canada and then T1—09049 1990–1999 or T1—090511 2000–2009 to 320.9 Political situation and conditions. The numbers in 971 [History of] Canada are: 971.0648 1993–1999; 971.071 Later portion of prime ministership of Jean Chrétien, 2000–2003; 971.072 Prime ministership of Paul Martin, 2003–2006 (note the updated caption); and the new number 971.073 Prime ministership of Stephen Harper, 2006–, which will appear in the next release of WebDewey and is available for immediate use.