“(or in Eretz Yisroel, Meah Shearim”
“Meah Shearim has no status of an “Ir”, nor has Jerusalem according to many poskim especially nowadays.
Joseph and others:
Please refer to the below link for the psak of Rav Dovid of Karlin ZTL (Os Gimel), that the inhabitants of Yerushlayim can not force their customs on other people that move there after any tekanah.
http://www.hebrewbooks.org/pdfpager.aspx?req=1581&st=&pgnum=48