2022) Echizen, Fukui (1 October 2022) Hashimoto, Wakayama (1 October 2022) Kaita, Hiroshima (1 October 2022) Kuroshio, Kōchi (1 October 2022) Miyoshi, Aichi (1 October 2022) Nasushiobara, Tochigi (1 October 2022) Ōtawara, Tochigi (1 October 2022) Setouchi, Okayama (1 October 2022) Zama, Kanagawa (1 October 2022) Toda, Saitama (11 October 2022) Ikeda, Osaka (1 November 2022) Asakuchi, Okayama (1 December 2022) Nagano, Nagano (1 December 2022) Nagoya, Aichi (1 December 2022) Obihiro, Hokkaido (1 December 2022) Nonoichi, Ishikawa (4 December 2022) Ichinoseki, Iwate (23 December 2022) Hita, Ōita (1 January 2023) Marugame, Kagawa (1 January 2023) Shiraoka, Saitama (1 January 2023) Tomakomai, Hokkaido (4 January 2023) Miyoshi, Hiroshima (5 January 2023) Wakō, Saitama (10 January 2023) Iwamizawa, Hokkaido (1 February 2023) Komaki, Aichi (1 February 2023) Nagaoka, Niigata (1 February 2023) Future partnership systems Kōnan, Kōchi (1 March 2023) Kazo, Saitama (23 March 2023) Chōfu, Tokyo (March 2023) Nisshin, Aichi (March 2023) Asaka, Saitama (1 April 2023) Handa, Aichi (1 April 2023) Hasuda, Saitama (1 April 2023) Higashihiroshima, Hiroshima (1 April 2023) Imabari, Ehime (1 April 2023) Kaizu, Gifu (1 April 2023) Kisarazu, Chiba (1 April 2023) Machida, Tokyo (1 April 2023) Niiza, Saitama (1 April 2023) Shiki, Saitama (1 April 2023) Aso, Kumamoto (April 2023) Bungotakada, Ōita (April 2023) Hokuto, Hokkaido (April 2023) Ikaruga, Nara (April 2023) Katsuyama, Fukui (April 2023) Kōshi, Kumamoto (April 2023) Maibara, Shiga (April 2022) Nagano Prefecture (April 2023) Ōzu, Ehime (April 2023) Morioka, Iwate (May 2023) Shimane Prefecture (1 October 2023) Asahikawa, Hokkaido (2023) Awara, Fukui (2023) Kimitsu, Chiba (2023) Ōmihachiman, Shiga (2023) Sakata, Yamagata (2023) Tomioka, Fukushima (2023) Otaru, Hokkaido (1 January 2024) Eiheiji, Fukui (April 2024) Hida, Gifu (TBD, supposed to have been introduced in 2019) Measures to allow partnership certificates have been proposed in numerous areas, including the prefectures of Gifu, Ishikawa, Iwate, Tokushima, and Wakayama; several administrative wards in Tokyo, such as Chiyoda, Chūō, Katsushika, Kōtō, Nerima, Shinjuku, Suginami, Sumida, and Taitō; and the cities of Hachinohe, Kashiwa, Matsuyama, Tagawa, Fuchū, Fukuyama, Kumano, Onomichi, Saka, Sera, Fukagawa, Kushiro, Takikawa, Kakogawa, Kobe, Miki, Tamba, Tamba-Sasayama, Rikuzentakata, Hioki, Isehara, Sendai, Azumino, Nagayo, Ōmura, Sado, Hayashima, Kumenan, Tamano, Itoman, Okinawa, Nago, Nanjō, Tomigusuku, Hanyū, Kasukabe, Matsubushi, Sugito, Tsurugashima, Warabi, Fujieda, Shimada, Shimonoseki, Higashimurayama, Hino, Komatsushima, Daisen, Nichinan, Yazu, Yonago, Toyama, Nachikatsuura, Hagi, Hirao, and Iwakuni. Statistics The first couple to receive a partnership certificate were Koyuki Higashi and Hiroko Masuhara in Shibuya on