Actually it’s more like:
Holy See – online:
Art. 5, § 1. In paroeciis, ubi coetus fidelium traditioni liturgicae antecedenti adhaerentium
continenter exsistit, parochus eorum petitiones ad celebrandam sanctam Missam iuxta ritum Missalis Romani anno 1962 editi, libenter suscipiat.
USCCB – pdf online:
Art. 5, § 1. In paroeciis, ubi coetus fidelium traditioni liturgicae antecedenti adhaerentium
stabiliter existit, parochus eorum petitiones ad celebrandam sanctam Missam iuxta ritum Missalis Romani anno 1962 editi, libenter suscipiat.
Here’s the English translation to the Holy See text provided by Fr. Z:
In parishes, where there is continuously present a group of the faithful attached to the previous liturgical tradition, let the pastor willingly receive their petitions that Mass be celebrated according to the Rite of the Missale Romanum issued in 1962.
As opposed to the USCCB’s version:
In parishes, where there is a stable group of faithful who adhere to the earlier liturgical tradition…
The Holy See’s text is a far cry from “stable group” or "group which exists stably"
Read this:
wdtprs.com/blog/2007/10/discrepency-in-latin-continenter-and-stabiliter-holy-see-and-usccb-texts-online-do-not-match/#comments