Aos legalistas, Mons. Perl responde:

Letter by Msgr. Camille Perl Regarding Society of St. Pius X Masses

Pontificia Commissio "Ecclesia Dei" January 18, 2003

(...)

(...) "Can I fulfill my Sunday obligation by attending a Pius X Mass" and our response was:

"1. In the strict sense you may fulfill your Sunday obligation by attending a Mass celebrated by a priest of the Society of St. Pius X."

(...)

His second question was "Is it a sin for me to attend a Pius X Mass" and we responded stating:

"2. We have already told you that we cannot recommend your attendance at such a Mass and have explained the reason why. If your primary reason for attending were to manifest your desire to separate yourself from communion with the Roman Pontiff and those in communion with him, it would be a sin. If your intention is simply to participate in a Mass according to the 1962 Missal for the sake of devotion, this would not be a sin."

(...)

Sincerely yours in Christ, Rev. Msgr. Camille Perl Secretary