It’s for unmarried couples period. Doesn’t matter whether it’s same sex or hetro.
Tom
Not sure doesn’t exist is correct, more that most either don’t use the option or know nothing about it. It’s governed by Federal laws according to the Vaud link and final approval has to be given by FOM if the application is accepted by the canton so theoretically you should be able to apply for it in any canton.
"In the case of cohabiting couples of the opposite sex or of the same sex, the stay shall be governed by Articles 30 (1) (b) of the Federal Act of 16 December 2005 on aliens (LEtr) and 31 Ordinance of 24 October 2007 on the admission, stay and exercise of a gainful occupation (OASA).
There is no right to obtain such a residence permit; It is a departure from the conditions of admission."
"The Swiss Institute of Comparative Law (ISDC) has identified the various foreign partnerships likely to be recognized in Switzerland in a legal opinion dated 3 November 2010 (pdf, 306 kb).
Competent authority
In case of acceptance by the Population Service, the file is subject to the approval of the Federal Office for Migration, as this is a derogation from the admission requirements."
But yes, the only reported cantons using it seem to be Geneva, Vaud, Neuchatel, Aargau and Zurich. That’s all I’ve seen mentioned here on the forum.
Thet, he must apply where he lives.