The response of the Society of Saint Pius X (FSSPX / SSPX) to the Doctrinal Preamble presented by Cardinal Levada on September 14 was officially delivered on December 10. This information was recently made known to the District Superiors of that fraternity.
The Doctrinal Preamble was a "temporary" proposal; the Superior General of the SSPX made known in his interview of late November and in his sermon of December 8 his views on the Preamble.
(Source: Fecit Forum.)