With the reversion of Macau to China in 1999, a new heading was created (Macau (China : Special Administrative Region)) and the heading for the former Portuguese territory (Macao) was revised to Macau.
In descriptive cataloging practice, all former and current headings are valid, depending upon the usage in the item being cataloged.
The official languages of Macau remain Chinese and Portuguese. Because there is uncertainty about Portuguese remaining an official language, all government bodies of Macau will be established provisionally (008/33 = value c ). If the item being cataloged shows the government body's name in Chinese only, establish the body in Chinese and code the name authority record provisional. If the item being cataloged shows the government body's name in Portuguese, establish the body in Portuguese and code the record provisional. If the item being cataloged shows the body's name in both Chinese and Portuguese, establish the body in Portuguese (according to AACR2 24.3A1) and code the record provisional. Do not revise a provisional heading for a government body established in either Chinese or Portuguese if the form in the other language becomes available later.
The heading Macau is no longer used in subject cataloging. The heading Macau (China : Special Administrative Region) is now used for that place in all time periods. As a geographic subdivision Macau is divided through China, for example Taxation--China--Macau (Special Administrative Region).
The MARC country code for Macau (mh) is no longer valid and will be deleted from the code list. The appropriate fixed field in bibliographic records should now be coded for China (cc).
A new geographic area code for Macau (a-cc-mh) will be used after May 20, 2000.