|Table 2: Progression of Japan’s Chukaku-shi (Core Cities), April 1, 1996-April 1, 2011(1).|
|Source: . |
Notes: The seven cities in italics have been promoted to Designated City.
(a)Achieved the status by annexing adjacent municipalities.
(b)Originally authorized after the elimination of the daytime/nighttime requirement.
(m)Achieved the status by merging with adjacent municipalities. Shimonoseki and Aomori are listed as mergers by the MIC but were existing Special Case Cities which essentially annexed adjacent areas.
(s)Formerly a Special Case City.
(w)Qualified only after revisions were made to the 100 km2 requirement.