Thursday, May 31, 2012
"On February 19, 2012, a letter was written to His Eminence William Cardinal Levada, President of the Pontifical Commission Ecclesia Dei asking if a Catholic may fulfill the precept to assist at the Holy Sacrifice of the Mass at a chapel which is affiliated with the Society of St. Pius X. Queen of Martyrs Press has received a transcription of the letter written to the Pontifical Commission with the latter's response (both with necessary editions). The response is an apparent 180° reversal of the previously - publicized responses from Roman authorities, including that of the Pontifical Commission Ecclesia Dei in regards to the fulfillment of the precept to assist at Holy Mass at SSPX-affiliated chapels. What is interesting about the date of the response from Ecclesia Dei is that it was written 12 days after deadline requesting Bp. Fellay to clarify his stance on the doctrinal preamble was publicized."
Cathcon has many books full of old decisions of the Congregation for Rites. They tend not to contradict eachother.