Given the availability of a priest in good canonical standing who is competent to celebrate it, and given the desire of the faithful themselves to assist thereupon, there is no permission required of the local bishop. We refer, of course, to the so-called "extraordinary form," that which dates in its general appearance to the time of Pope Gregory the Great in the sixth century, and which, after a millennium of cross-cultural evolution, was codified by Pope Pius V in 1570, and with minor alterations in the centuries to follow, was in normative use in the Western church until 1964, with the first measures to (ostensibly) reconcile the Ordo Missae with the decrees of the Second Vatican Council. And yet, after seven years …
… if you can't imagine why you don't have access to the Traditional Latin Mass in every gosh darn parish in the universe, as of one day after the Pope said you could, or you want to know what has to happen to have one anywhere at all, you should read this.
Then you should read it again. Slowly.
… and all will be revealed.