From Legal Commentary on Proposition 8 and the Right to Marry:
07/13/09 order by Judge Vaughn Walker in Perry et al v. Schwarzenegger et al., (N.D.Cal. 3:09-cv-02292, filed May 22, 2009):
According to Judge Walker's order, Ted Boies and Theodore Olson would have until August 7th to oppose a motion to intervene by the ACLU, the National Center for Lesbian Rights, and Lamda Legal Defense, and these movants would have until August 14th to respond. On August 19th, Judge Walker will hear arguments on this and any other timely-filed motion to intervene.