
As of November 1, 20 prefectures and 150 municipalities in Japan have joined a sort of “interstate compact” for partnership registries, the “Partnership System Municipal Cooperation Network”. While multiple such agreements were established between cities and some between prefectures, this is the first to be advertised as one which any jurisdiction in Japan can join.
Outside of recognition by the national government and ongoing litigation in national courts on same-sex marriage, this network is the most high-profile effort at a national partnership registry for same-sex and unmarried couples in Japan to date. It is also the most serious attempt at such since the first partnership registry was established in Shibuya ward in Tokyo in 2015.
Should be interesting to watch progress on this network in 2025, despite what’s likely to happen in the United States.