Partnership oath in Japan

As of 1 June 2026, 563 municipalities and 31 of 47 prefectures in Japan have established a "partnership oath system" (Japanese: パートナーシップ宣誓制度, pātonāshippu sensei seido, pronounced [paːtonaːɕippɯ senseː seːdo]), also known as "partnership certification system" (パートナーシップ証明制度, pātonāshippu shōmei seido), which provides same-sex (and, in some jurisdictions, common-law opposite-sex) couples with some limited benefits. The couple is issued a special certificate which may be useful in matters such as housing, hospital visitation rights and consenting to surgery for a partner.

Source: Wikipedia — Partnership oath in Japan (CC BY-SA 4.0)